30 Jun '21
revision-id: 4a6e2d343745c11086c05f0041a8267591bb073c (mariadb-10.3.30-14-g4a6e2d34374)
parent(s): 586870f9effa48831fda2590f2aee2b95b30be39
author: Sergei Petrunia
committer: Sergei Petrunia
timestamp: 2021-06-30 16:43:43 +0300
message:
Post-merge fix: update derived_cond_pushdown.result
---
mysql-test/main/derived_cond_pushdown.result | 1 +
1 file changed, 1 insertion(+)
diff --git a/mysql-test/main/derived_cond_pushdown.result b/mysql-test/main/derived_cond_pushdown.result
index b886db20eed..d2c116913f4 100644
--- a/mysql-test/main/derived_cond_pushdown.result
+++ b/mysql-test/main/derived_cond_pushdown.result
@@ -10764,6 +10764,7 @@ EXPLAIN
{
"query_block": {
"select_id": 3,
+ "operation": "UNION",
"table": {
"table_name": "t1",
"access_type": "ref",
1
0
revision-id: 586870f9effa48831fda2590f2aee2b95b30be39 (mariadb-10.3.30-13-g586870f9eff)
parent(s): 29098083f7ac3b445ee59c3e765eb634ec70b947 eb20c91b55e4b51be533314994b36bf9b24016f3
author: Sergei Petrunia
committer: Sergei Petrunia
timestamp: 2021-06-30 15:06:54 +0300
message:
Merge 10.2->10.3
.gitignore | 2 +
cmake/cpack_rpm.cmake | 6 +-
mysql-test/main/cte_nonrecursive.result | 55 ++++++++
mysql-test/main/cte_nonrecursive.test | 29 ++++
mysql-test/main/derived_cond_pushdown.result | 146 +++++++++++++++++++++
mysql-test/main/derived_cond_pushdown.test | 70 ++++++++++
mysql-test/main/gis-json.result | 10 ++
mysql-test/main/gis-json.test | 7 +
mysql-test/main/information_schema.result | 2 +
.../main/information_schema_all_engines.result | 12 +-
mysql-test/suite/funcs_1/r/is_columns_is.result | 4 +
.../suite/funcs_1/r/is_columns_is_embedded.result | 4 +
mysql-test/suite/funcs_1/r/is_tables_is.result | 92 +++++++++++++
.../suite/funcs_1/r/is_tables_is_embedded.result | 92 +++++++++++++
mysql-test/suite/galera/r/lp1376747-4.result | 2 +-
mysql-test/suite/galera/t/lp1376747-4.test | 2 +-
sql/handler.h | 2 +
sql/item_create.cc | 5 +-
sql/lex.h | 7 +-
sql/spatial.cc | 6 +
sql/sql_derived.cc | 79 ++++++++++-
sql/sql_show.cc | 83 ++++++++++++
storage/innobase/os/os0file.cc | 38 +++++-
23 files changed, 736 insertions(+), 19 deletions(-)
diff --cc mysql-test/main/cte_nonrecursive.result
index 0992c97a857,00000000000..550864b20c6
mode 100644,000000..100644
--- a/mysql-test/main/cte_nonrecursive.result
+++ b/mysql-test/main/cte_nonrecursive.result
@@@ -1,2077 -1,0 +1,2132 @@@
+create table t1 (a int, b varchar(32));
+insert into t1 values
+(4,'aaaa' ), (7,'bb'), (1,'ccc'), (4,'dd');
+insert into t1 values
+(3,'eee'), (7,'bb'), (1,'fff'), (4,'ggg');
+create table t2 (c int);
+insert into t2 values
+(2), (4), (5), (3);
+# select certain field in the specification of t
+with t as (select a from t1 where b >= 'c')
+select * from t2,t where t2.c=t.a;
+c a
+4 4
+3 3
+4 4
+select * from t2, (select a from t1 where b >= 'c') as t
+where t2.c=t.a;
+c a
+4 4
+3 3
+4 4
+explain
+with t as (select a from t1 where b >= 'c')
+select * from t2,t where t2.c=t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t2 ALL NULL NULL NULL NULL 4
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+explain
+select * from t2, (select a from t1 where b >= 'c') as t
+where t2.c=t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t2 ALL NULL NULL NULL NULL 4
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# select '*' in the specification of t
+with t as (select * from t1 where b >= 'c')
+select * from t2,t where t2.c=t.a;
+c a b
+4 4 dd
+3 3 eee
+4 4 ggg
+select * from t2, (select * from t1 where b >= 'c') as t
+where t2.c=t.a;
+c a b
+4 4 dd
+3 3 eee
+4 4 ggg
+explain
+with t as (select * from t1 where b >= 'c')
+select * from t2,t where t2.c=t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t2 ALL NULL NULL NULL NULL 4
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+explain
+select * from t2, (select * from t1 where b >= 'c') as t
+where t2.c=t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t2 ALL NULL NULL NULL NULL 4
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# rename fields returned by the specication when defining t
+with t(f1,f2) as (select * from t1 where b >= 'c')
+select * from t2,t where t2.c=t.f1;
+c f1 f2
+4 4 dd
+3 3 eee
+4 4 ggg
+explain
+with t(f1,f2) as (select * from t1 where b >= 'c')
+select * from t2,t where t2.c=t.f1;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t2 ALL NULL NULL NULL NULL 4
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# materialized query specifying t
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+select * from t2,t where t2.c=t.a;
+c a count(*)
+4 4 2
+3 3 1
+select * from t2, (select a, count(*) from t1 where b >= 'c' group by a) as t
+where t2.c=t.a;
+c a count(*)
+4 4 2
+3 3 1
+explain
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+select * from t2,t where t2.c=t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
+explain
+select * from t2, (select a, count(*) from t1 where b >= 'c' group by a) as t
+where t2.c=t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
+# specivication of t contains having
+with t as (select a, count(*) from t1 where b >= 'c'
+ group by a having count(*)=1 )
+select * from t2,t where t2.c=t.a;
+c a count(*)
+3 3 1
+select * from t2, (select a, count(*) from t1 where b >= 'c'
+ group by a having count(*)=1) t
+where t2.c=t.a;
+c a count(*)
+3 3 1
+# main query contains having
+with t as (select * from t2 where c <= 4)
+select a, count(*) from t1,t where t1.a=t.c group by a having count(*)=1;
+a count(*)
+3 1
+select a, count(*) from t1, (select * from t2 where c <= 4) t
+where t1.a=t.c group by a having count(*)=1;
+a count(*)
+3 1
+# main query contains group by + order by
+with t as (select * from t2 where c <= 4 )
+select a, count(*) from t1,t where t1.a=t.c group by a order by count(*);
+a count(*)
+3 1
+4 3
+select a, count(*) from t1, (select * from t2 where c <= 4 ) t
+where t1.a=t.c group by a order by count(*);
+a count(*)
+3 1
+4 3
+# main query contains group by + order by + limit
+with t as (select * from t2 where c <= 4 )
+select a, count(*) from t1,t
+where t1.a=t.c group by a order by count(*) desc limit 1;
+a count(*)
+4 3
+select a, count(*) from t1, (select * from t2 where c <= 4 ) t
+where t1.a=t.c group by a order by count(*) desc limit 1;
+a count(*)
+4 3
+# t is used in a subquery
+with t as (select a from t1 where a<5)
+select * from t2 where c in (select a from t);
+c
+4
+3
+select * from t2
+where c in (select a from (select a from t1 where a<5) as t);
+c
+4
+3
+explain
+with t as (select a from t1 where a<5)
+select * from t2 where c in (select a from t);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4
+1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
+3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where
+explain
+select * from t2
+where c in (select a from (select a from t1 where a<5) as t);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4
+1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
+2 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where
+# materialized t is used in a subquery
+with t as (select count(*) as c from t1 where b >= 'c' group by a)
+select * from t2 where c in (select c from t);
+c
+2
+select * from t2
+where c in (select c from (select count(*) as c from t1
+where b >= 'c' group by a) as t);
+c
+2
+explain
+with t as (select count(*) as c from t1 where b >= 'c' group by a)
+select * from t2 where c in (select c from t);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <derived2> ref key0 key0 8 test.t2.c 2 Using where; FirstMatch(t2)
+2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
+explain
+select * from t2
+where c in (select c from (select count(*) as c from t1
+where b >= 'c' group by a) as t);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <derived3> ref key0 key0 8 test.t2.c 2 Using where; FirstMatch(t2)
+3 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
+# two references to t specified by a query
+# selecting a field: both in main query
+with t as (select a from t1 where b >= 'c')
+select * from t as r1, t as r2 where r1.a=r2.a;
+a a
+1 1
+1 1
+4 4
+4 4
+3 3
+1 1
+1 1
+4 4
+4 4
+select * from (select a from t1 where b >= 'c') as r1,
+(select a from t1 where b >= 'c') as r2
+where r1.a=r2.a;
+a a
+1 1
+1 1
+4 4
+4 4
+3 3
+1 1
+1 1
+4 4
+4 4
+explain
+with t as (select a from t1 where b >= 'c')
+select * from t as r1, t as r2 where r1.a=r2.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+explain
+select * from (select a from t1 where b >= 'c') as r1,
+(select a from t1 where b >= 'c') as r2
+where r1.a=r2.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# two references to materialized t: both in main query
+with t as (select distinct a from t1 where b >= 'c')
+select * from t as r1, t as r2 where r1.a=r2.a;
+a a
+1 1
+4 4
+3 3
+select * from (select distinct a from t1 where b >= 'c') as r1,
+(select distinct a from t1 where b >= 'c') as r2
+where r1.a=r2.a;
+a a
+1 1
+4 4
+3 3
+explain
+with t as (select distinct a from t1 where b >= 'c')
+select * from t as r1, t as r2 where r1.a=r2.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 8 Using where
+1 PRIMARY <derived3> ref key0 key0 5 r1.a 1
+3 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary
+2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary
+explain
+select * from (select distinct a from t1 where b >= 'c') as r1,
+(select distinct a from t1 where b >= 'c') as r2
+where r1.a=r2.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 8 Using where
+1 PRIMARY <derived3> ref key0 key0 5 r1.a 1
+3 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary
+2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary
+# two references to t specified by a query
+# selecting all fields: both in main query
+with t as (select * from t1 where b >= 'c')
+select * from t as r1, t as r2 where r1.a=r2.a;
+a b a b
+1 ccc 1 ccc
+1 fff 1 ccc
+4 dd 4 dd
+4 ggg 4 dd
+3 eee 3 eee
+1 ccc 1 fff
+1 fff 1 fff
+4 dd 4 ggg
+4 ggg 4 ggg
+select * from (select * from t1 where b >= 'c') as r1,
+(select * from t1 where b >= 'c') as r2
+where r1.a=r2.a;
+a b a b
+1 ccc 1 ccc
+1 fff 1 ccc
+4 dd 4 dd
+4 ggg 4 dd
+3 eee 3 eee
+1 ccc 1 fff
+1 fff 1 fff
+4 dd 4 ggg
+4 ggg 4 ggg
+explain
+with t as (select * from t1 where b >= 'c')
+select * from t as r1, t as r2 where r1.a=r2.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+explain
+select * from (select * from t1 where b >= 'c') as r1,
+(select * from t1 where b >= 'c') as r2
+where r1.a=r2.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# two references to t specifying explicitly column names
+with t(c) as (select a from t1 where b >= 'c')
+select * from t r1, t r2 where r1.c=r2.c;
+c c
+1 1
+1 1
+4 4
+4 4
+3 3
+1 1
+1 1
+4 4
+4 4
+# t two references of t used in different parts of a union
+with t as (select a from t1 where b >= 'c')
+select * from t where a < 2
+union
+select * from t where a >= 4;
+a
+1
+4
+select * from (select a from t1 where b >= 'c') as t
+where t.a < 2
+union
+select * from (select a from t1 where b >= 'c') as t
+where t.a >= 4;
+a
+1
+4
+explain
+with t as (select a from t1 where b >= 'c')
+select * from t where a < 2
+union
+select * from t where a >= 4;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where
+3 UNION t1 ALL NULL NULL NULL NULL 8 Using where
+NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL
+explain
+select * from (select a from t1 where b >= 'c') as t
+where t.a < 2
+union
+select * from (select a from t1 where b >= 'c') as t
+where t.a >= 4;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where
+3 UNION t1 ALL NULL NULL NULL NULL 8 Using where
+NULL UNION RESULT <union1,3> ALL NULL NULL NULL NULL NULL
+# specification of t contains union
+with t as (select a from t1 where b >= 'f'
+union
+select c as a from t2 where c < 4)
+select * from t2,t where t2.c=t.a;
+c a
+2 2
+4 4
+3 3
+select * from t2,
+(select a from t1 where b >= 'f'
+union
+select c as a from t2 where c < 4) as t
+where t2.c=t.a;
+c a
+2 2
+4 4
+3 3
+explain
+with t as (select a from t1 where b >= 'f'
+union
+select c as a from t2 where c < 4)
+select * from t2,t where t2.c=t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 1
+2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where
+3 UNION t2 ALL NULL NULL NULL NULL 4 Using where
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain
+select * from t2,
+(select a from t1 where b >= 'f'
+union
+select c as a from t2 where c < 4) as t
+where t2.c=t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 1
+2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where
+3 UNION t2 ALL NULL NULL NULL NULL 4 Using where
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+# t is defined in the with clause of a subquery
+select t1.a,t1.b from t1,t2
+where t1.a>t2.c and
+t2.c in (with t as (select * from t1 where t1.a<5)
+select t2.c from t2,t where t2.c=t.a);
+a b
+4 aaaa
+7 bb
+7 bb
+4 dd
+7 bb
+7 bb
+4 ggg
+select t1.a,t1.b from t1,t2
+where t1.a>t2.c and
+t2.c in (select t2.c
+from t2,(select * from t1 where t1.a<5) as t
+where t2.c=t.a);
+a b
+4 aaaa
+7 bb
+7 bb
+4 dd
+7 bb
+7 bb
+4 ggg
+explain
+select t1.a,t1.b from t1,t2
+where t1.a>t2.c and
+t2.c in (with t as (select * from t1 where t1.a<5)
+select t2.c from t2,t where t2.c=t.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4
+1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+2 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
+2 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+explain
+select t1.a,t1.b from t1,t2
+where t1.a>t2.c and
+t2.c in (select t2.c
+from t2,(select * from t1 where t1.a<5) as t
+where t2.c=t.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4
+1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+2 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
+2 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# two different definitions of t: one in the with clause of the main query,
+# the other in the with clause of a subquery
+with t as (select c from t2 where c >= 4)
+select t1.a,t1.b from t1,t
+where t1.a=t.c and
+t.c in (with t as (select * from t1 where t1.a<5)
+select t2.c from t2,t where t2.c=t.a);
+a b
+4 aaaa
+4 dd
+4 ggg
+select t1.a,t1.b from t1, (select c from t2 where c >= 4) as t
+where t1.a=t.c and
+t.c in (select t2.c from t2, (select * from t1 where t1.a<5) as t
+where t2.c=t.a);
+a b
+4 aaaa
+4 dd
+4 ggg
+explain
+with t as (select c from t2 where c >= 4)
+select t1.a,t1.b from t1,t
+where t1.a=t.c and
+t.c in (with t as (select * from t1 where t1.a<5)
+select t2.c from t2,t where t2.c=t.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+3 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
+3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+explain
+select t1.a,t1.b from t1, (select c from t2 where c >= 4) as t
+where t1.a=t.c and
+t.c in (select t2.c from t2, (select * from t1 where t1.a<5) as t
+where t2.c=t.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+3 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
+3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# another with table tt is defined in the with clause of a subquery
+# from the specification of t
+with t as (select * from t1
+where a>2 and
+b in (with tt as (select * from t2 where t2.c<5)
+select t1.b from t1,tt where t1.a=tt.c))
+select t.a, count(*) from t1,t where t1.a=t.a group by t.a;
+a count(*)
+3 1
+4 9
+select t.a, count(*)
+from t1,
+(select * from t1
+where a>2 and
+b in (select t1.b
+from t1,
+(select * from t2 where t2.c<5) as tt
+where t1.a=tt.c)) as t
+where t1.a=t.a group by t.a;
+a count(*)
+3 1
+4 9
+explain
+with t as (select * from t1
+where a>2 and
+b in (with tt as (select * from t2 where t2.c<5)
+select t1.b from t1,tt where t1.a=tt.c))
+select t.a, count(*) from t1,t where t1.a=t.a group by t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 35 func 1
+3 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
+3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+explain
+select t.a, count(*)
+from t1,
+(select * from t1
+where a>2 and
+b in (select t1.b
+from t1,
+(select * from t2 where t2.c<5) as tt
+where t1.a=tt.c)) as t
+where t1.a=t.a group by t.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 35 func 1
+3 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 Using where
+3 MATERIALIZED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# with clause in the specification of a derived table
+select *
+from t1,
+(with t as (select a from t1 where b >= 'c')
+select * from t2,t where t2.c=t.a) as tt
+where t1.b > 'f' and tt.a=t1.a;
+a b c a
+4 ggg 4 4
+4 ggg 4 4
+select *
+from t1,
+(select * from t2,
+(select a from t1 where b >= 'c') as t
+where t2.c=t.a) as tt
+where t1.b > 'f' and tt.a=t1.a;
+a b c a
+4 ggg 4 4
+4 ggg 4 4
+explain
+select *
+from t1,
+(with t as (select a from t1 where b >= 'c')
+select * from t2,t where t2.c=t.a) as tt
+where t1.b > 'f' and tt.a=t1.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t2 ALL NULL NULL NULL NULL 4
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (incremental, BNL join)
+explain
+select *
+from t1,
+(select * from t2,
+(select a from t1 where b >= 'c') as t
+where t2.c=t.a) as tt
+where t1.b > 'f' and tt.a=t1.a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t2 ALL NULL NULL NULL NULL 4
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (incremental, BNL join)
+# with claused in the specification of a view
+create view v1 as
+with t as (select a from t1 where b >= 'c')
+select * from t2,t where t2.c=t.a;
+show create view v1;
+View Create View character_set_client collation_connection
+v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS with t as (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`b` >= 'c')select `test`.`t2`.`c` AS `c`,`t`.`a` AS `a` from (`test`.`t2` join `t`) where `test`.`t2`.`c` = `t`.`a` latin1 latin1_swedish_ci
+select * from v1;
+c a
+4 4
+3 3
+4 4
+explain
+select * from v1;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t2 ALL NULL NULL NULL NULL 4
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# with claused in the specification of a materialized view
+create view v2 as
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+select * from t2,t where t2.c=t.a;
+show create view v2;
+View Create View character_set_client collation_connection
+v2 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS with t as (select `test`.`t1`.`a` AS `a`,count(0) AS `count(*)` from `test`.`t1` where `test`.`t1`.`b` >= 'c' group by `test`.`t1`.`a`)select `test`.`t2`.`c` AS `c`,`t`.`a` AS `a`,`t`.`count(*)` AS `count(*)` from (`test`.`t2` join `t`) where `test`.`t2`.`c` = `t`.`a` latin1 latin1_swedish_ci
+select * from v2;
+c a count(*)
+4 4 2
+3 3 1
+explain
+select * from v2;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
+1 PRIMARY <derived3> ref key0 key0 5 test.t2.c 2
+3 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
+# with clause in the specification of a view that whose definition
+# table alias for a with table
+create view v3 as
+with t(c) as (select a from t1 where b >= 'c')
+select * from t r1 where r1.c=4;
+show create view v3;
+View Create View character_set_client collation_connection
+v3 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v3` AS with t(c) as (select `test`.`t1`.`a` AS `c` from `test`.`t1` where `test`.`t1`.`b` >= 'c')select `r1`.`c` AS `c` from `t` `r1` where `r1`.`c` = 4 latin1 latin1_swedish_ci
+select * from v3;
+c
+4
+4
+# with clause in the specification of a view that whose definition
+# two table aliases for for the same with table
+create view v4(c,d) as
+with t(c) as (select a from t1 where b >= 'c')
+select * from t r1, t r2 where r1.c=r2.c and r2.c=4;
+show create view v4;
+View Create View character_set_client collation_connection
+v4 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v4` AS with t(c) as (select `test`.`t1`.`a` AS `c` from `test`.`t1` where `test`.`t1`.`b` >= 'c')select `r1`.`c` AS `c`,`r2`.`c` AS `d` from (`t` `r1` join `t` `r2`) where `r1`.`c` = `r2`.`c` and `r2`.`c` = 4 latin1 latin1_swedish_ci
+select * from v4;
+c d
+4 4
+4 4
+4 4
+4 4
+explain
+select * from v4;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
+1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+drop view v1,v2,v3,v4;
+# currently any views containing with clause are not updatable
+create view v1(a) as
+with t as (select a from t1 where b >= 'c')
+select t.a from t2,t where t2.c=t.a;
+update v1 set a=0 where a > 4;
+ERROR HY000: The target table v1 of the UPDATE is not updatable
+drop view v1;
+# prepare of a query containing a definition of a with table t
+prepare stmt1 from "
+with t as (select a from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a;
+";
+execute stmt1;
+c a
+4 4
+3 3
+4 4
+execute stmt1;
+c a
+4 4
+3 3
+4 4
+deallocate prepare stmt1;
+# prepare of a query containing a definition of a materialized t
+prepare stmt1 from "
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+ select * from t2,t where t2.c=t.a;
+";
+execute stmt1;
+c a count(*)
+4 4 2
+3 3 1
+execute stmt1;
+c a count(*)
+4 4 2
+3 3 1
+deallocate prepare stmt1;
+# prepare of a query containing two references to with table t
+prepare stmt1 from "
+with t as (select * from t1 where b >= 'c')
+ select * from t as r1, t as r2 where r1.a=r2.a;
+";
+execute stmt1;
+a b a b
+1 ccc 1 ccc
+1 fff 1 ccc
+4 dd 4 dd
+4 ggg 4 dd
+3 eee 3 eee
+1 ccc 1 fff
+1 fff 1 fff
+4 dd 4 ggg
+4 ggg 4 ggg
+execute stmt1;
+a b a b
+1 ccc 1 ccc
+1 fff 1 ccc
+4 dd 4 dd
+4 ggg 4 dd
+3 eee 3 eee
+1 ccc 1 fff
+1 fff 1 fff
+4 dd 4 ggg
+4 ggg 4 ggg
+deallocate prepare stmt1;
+with t(f) as (select * from t1 where b >= 'c')
+select * from t2,t where t2.c=t.f1;
+ERROR HY000: WITH column list and SELECT field list have different column counts
+with t(f1,f1) as (select * from t1 where b >= 'c')
+select * from t2,t where t2.c=t.f1;
+ERROR 42S21: Duplicate column name 'f1'
+with t as (select * from t2 where c>3),
+t as (select a from t1 where a>2)
+select * from t,t1 where t1.a=t.c;
+ERROR HY000: Duplicate query name `t` in WITH clause
+with t as (select a from s where a<5),
+s as (select a from t1 where b>='d')
+select * from t,s where t.a=s.a;
+ERROR 42S02: Table 'test.s' doesn't exist
+with recursive
+t as (select a from s where a<5),
+s as (select a from t1 where b>='d')
+select * from t,s where t.a=s.a;
+a a
+4 4
+4 4
+3 3
+1 1
+4 4
+4 4
+with recursive t as (select * from s where a>2),
+s as (select a from t1,r where t1.a>r.c),
+r as (select c from t,t2 where t.a=t2.c)
+select * from r where r.c<7;
+ERROR HY000: No anchors for recursive WITH element 't'
+with recursive
+t as (select * from s where a>2),
+s as (select a from t1,r where t1.a>r.c),
+r as (select c from t,t2 where t.a=t2.c)
+select * from r where r.c<7;
+ERROR HY000: No anchors for recursive WITH element 't'
+with recursive
+t as (select * from t1
+where a in (select c from s where b<='ccc') and b>'b'),
+s as (select * from t1,t2
+where t1.a=t2.c and t1.c in (select a from t where a<5))
+select * from s where s.b>'aaa';
+ERROR HY000: No anchors for recursive WITH element 't'
+with recursive
+t as (select * from t1 where b>'aaa' and b <='d')
+select t.b from t,t2
+where t.a=t2.c and
+t2.c in (with recursive
+s as (select t1.a from s,t1 where t1.a=s.a and t1.b<'c')
+select * from s);
+ERROR HY000: No anchors for recursive WITH element 's'
+#erroneous definition of unreferenced with table t
+with t as (select count(*) from t1 where d>='f' group by a)
+select t1.b from t2,t1 where t1.a = t2.c;
+ERROR 42S22: Unknown column 'd' in 'where clause'
+with t as (select count(*) from t1 where b>='f' group by a)
+select t1.b from t2,t1 where t1.a = t2.c;
+b
+aaaa
+dd
+eee
+ggg
+#erroneous definition of s referring to unreferenced t
+with t(d) as (select count(*) from t1 where b<='ccc' group by b),
+s as (select * from t1 where a in (select t2.d from t2,t where t2.c=t.d))
+select t1.b from t1,t2 where t1.a=t2.c;
+ERROR 42S22: Unknown column 't2.d' in 'field list'
+with t(d) as (select count(*) from t1 where b<='ccc' group by b),
+s as (select * from t1 where a in (select t2.c from t2,t where t2.c=t.c))
+select t1.b from t1,t2 where t1.a=t2.c;
+ERROR 42S22: Unknown column 't.c' in 'where clause'
+with t(d) as (select count(*) from t1 where b<='ccc' group by b),
+s as (select * from t1 where a in (select t2.c from t2,t where t2.c=t.d))
+select t1.b from t1,t2 where t1.a=t2.c;
+b
+aaaa
+dd
+eee
+ggg
+#erroneous definition of unreferenced with table t
+with t(f) as (select * from t1 where b >= 'c')
+select t1.b from t2,t1 where t1.a = t2.c;
+ERROR HY000: WITH column list and SELECT field list have different column counts
+#erroneous definition of unreferenced with table t
+with t(f1,f1) as (select * from t1 where b >= 'c')
+select t1.b from t2,t1 where t1.a = t2.c;
+ERROR 42S21: Duplicate column name 'f1'
+# explain for query with unreferenced with table
+explain
+with t as (select a from t1 where b >= 'c')
+select t1.b from t2,t1 where t1.a = t2.c;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+explain
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+select t1.b from t2,t1 where t1.a = t2.c;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 4
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
+# too many with elements in with clause
+with s65 as (select * from t1), s64 as (select * from t1) , s63 as (select * from t1) , s62 as (select * from t1) , s61 as (select * from t1) , s60 as (select * from t1) , s59 as (select * from t1) , s58 as (select * from t1) , s57 as (select * from t1) , s56 as (select * from t1) , s55 as (select * from t1) , s54 as (select * from t1) , s53 as (select * from t1) , s52 as (select * from t1) , s51 as (select * from t1) , s50 as (select * from t1) , s49 as (select * from t1) , s48 as (select * from t1) , s47 as (select * from t1) , s46 as (select * from t1) , s45 as (select * from t1) , s44 as (select * from t1) , s43 as (select * from t1) , s42 as (select * from t1) , s41 as (select * from t1) , s40 as (select * from t1) , s39 as (select * from t1) , s38 as (select * from t1) , s37 as (select * from t1) , s36 as (select * from t1) , s35 as (select * from t1) , s34 as (select * from t1) , s33 as (select * from t1) , s32 as (select * from t1) , s31 as (select * from t1) , s30 as (sele
ct * from t1) , s29 as (select * from t1) , s28 as (select * from t1) , s27 as (select * from t1) , s26 as (select * from t1) , s25 as (select * from t1) , s24 as (select * from t1) , s23 as (select * from t1) , s22 as (select * from t1) , s21 as (select * from t1) , s20 as (select * from t1) , s19 as (select * from t1) , s18 as (select * from t1) , s17 as (select * from t1) , s16 as (select * from t1) , s15 as (select * from t1) , s14 as (select * from t1) , s13 as (select * from t1) , s12 as (select * from t1) , s11 as (select * from t1) , s10 as (select * from t1) , s9 as (select * from t1) , s8 as (select * from t1) , s7 as (select * from t1) , s6 as (select * from t1) , s5 as (select * from t1) , s4 as (select * from t1) , s3 as (select * from t1) , s2 as (select * from t1) , s1 as (select * from t1) select * from s65;
+ERROR HY000: Too many WITH elements in WITH clause
+drop table t1,t2;
+#
+# Bug mdev-9937: View used in the specification of with table
+# refers to the base table with the same name
+#
+create table t1 (a int);
+insert into t1 values (20), (30), (10);
+create view v1 as select * from t1 where a > 10;
+with t1 as (select * from v1) select * from t1;
+a
+20
+30
+drop view v1;
+drop table t1;
+#
+# Bug mdev-10058: Invalid derived table with WITH clause
+#
+CREATE TABLE t1 (a INT);
+CREATE TABLE t2 (a INT);
+CREATE TABLE t3 (a INT);
+INSERT INTO t1 VALUES (1),(2),(3);
+INSERT INTO t2 VALUES (1),(2),(3);
+INSERT INTO t3 VALUES (1),(2),(3);
+SELECT * FROM (WITH a AS (SELECT * FROM t1) (t2 NATURAL JOIN t3));
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't2 NATURAL JOIN t3))' at line 1
+SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT * FROM t2 NATURAL JOIN t3) AS d1;
+a
+1
+2
+3
+DROP TABLE t1,t2,t3;
+#
+# Bug mdev-10344: the WITH clause of the query refers to a view that uses
+# a base table with the same name as a CTE table from the clause
+#
+create table ten(a int primary key);
+insert into ten values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table one_k(a int primary key);
+insert into one_k select A.a + B.a* 10 + C.a * 100 from ten A, ten B, ten C;
+create view v1 as select * from ten;
+select * from v1;
+a
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+drop view v1;
+drop table ten, one_k;
+#
+# MDEV-10057 : Crash with EXPLAIN + WITH + constant query
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (1),(2),(3);
+SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT 1) AS t1;
+1
+1
+EXPLAIN SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT 1) AS t1;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> system NULL NULL NULL NULL 1
+2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL No tables used
+DROP TABLE t1;
+#
+# MDEV-10058: Suspicious EXPLAIN output for a derived table + WITH + joined table
+#
+CREATE TABLE t1 (a INT);
+CREATE TABLE t2 (a INT);
+CREATE TABLE t3 (a INT);
+INSERT INTO t1 VALUES (1),(2),(3);
+INSERT INTO t2 VALUES (1),(2),(3);
+INSERT INTO t3 VALUES (1),(2),(3);
+EXPLAIN SELECT * FROM (WITH a AS (SELECT * FROM t1) (t2 NATURAL JOIN t3));
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't2 NATURAL JOIN t3))' at line 1
+explain SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT * FROM t2 NATURAL JOIN t3) AS d1;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 3
+1 PRIMARY t3 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
+DROP TABLE t1,t2,t3;
+#
+# MDEV-10729: Server crashes in st_select_lex::set_explain_type
+#
+CREATE TABLE t1 (i1 INT, KEY(i1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (4),(8);
+CREATE TABLE t2 (a2 INT, b2 INT, KEY(b2)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (8,7);
+CREATE TABLE t3 (i3 INT) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (2),(6);
+SELECT * FROM t1, t2 WHERE a2 = i1 and b2 >= i1 AND i1 IN ( SELECT i3 FROM t3 )
+UNION
+SELECT * FROM t1, t2 WHERE a2 = i1 and b2 >= i1 AND i1 IN ( SELECT i3 FROM t3 )
+;
+i1 a2 b2
+DROP TABLE t1,t2,t3;
+#
+# MDEV-10923: mergeable CTE used twice in the query
+#
+create table employees (
+name varchar(32),
+dept varchar(32),
+country varchar(8)
+);
+insert into employees
+values
+('Sergei Golubchik', 'Development', 'DE'),
+('Claudio Nanni', 'Support', 'ES'),
+('Sergei Petrunia', 'Development', 'RU');
+with eng as
+(
+select * from employees
+where dept in ('Development','Support')
+),
+eu_eng as
+(
+select * from eng where country IN ('DE','ES','RU')
+)
+select * from eu_eng T1
+where
+not exists (select 1 from eu_eng T2
+where T2.country=T1.country
+and T2.name <> T1.name);
+name dept country
+Sergei Golubchik Development DE
+Claudio Nanni Support ES
+Sergei Petrunia Development RU
+drop table employees;
+#
+# MDEV-11818: EXPLAIN EXTENDED for a query with optimized away CTE table
+#
+CREATE TABLE t1 (i INT, c VARCHAR(3));
+INSERT INTO t1 VALUES (1,'foo');
+EXPLAIN EXTENDED
+WITH cte AS ( SELECT * FROM t1 ) SELECT i FROM cte;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
+Warnings:
+Note 1003 with cte as (select `test`.`t1`.`i` AS `i`,`test`.`t1`.`c` AS `c` from `test`.`t1`)select 1 AS `i` from dual
+DROP TABLE t1;
+#
+# MDEV-12185: view defintion contains WITH clause with
+# several specifications of CTE
+#
+with
+alias1 as (select 1 as one),
+alias2 as (select 2 as two)
+select one, two from alias1, alias2;
+one two
+1 2
+create view v1 as
+with
+alias1 as (select 1 as one),
+alias2 as (select 2 as two)
+select one, two from alias1, alias2;
+select * from v1;
+one two
+1 2
+show create view v1;
+View Create View character_set_client collation_connection
+v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS with alias1 as (select 1 AS `one`), alias2 as (select 2 AS `two`)select `alias1`.`one` AS `one`,`alias2`.`two` AS `two` from (`alias1` join `alias2`) latin1 latin1_swedish_ci
+drop view v1;
+#
+# MDEV-12440: the same CTE table is used twice
+#
+create table t1 (a int, b varchar(32));
+insert into t1 values
+(4,'aaaa' ), (7,'bb'), (1,'ccc'), (4,'dd');
+# cte2 is used in the main query and in the spec for ct3
+with
+cte1 as (select * from t1 where b >= 'c'),
+cte2 as (select * from cte1 where a < 7),
+cte3 as (select * from cte2 where a > 1)
+select * from cte2, cte3 where cte2.a = cte3.a;
+a b a b
+4 dd 4 dd
+# cte2 is used twice in the spec for ct3
+with
+cte1 as (select * from t1 where b >= 'b'),
+cte2 as (select * from cte1 where b > 'c'),
+cte3 as (select * from cte2 where a > 1 union select * from cte2 where a > 1)
+select * from cte3;
+a b
+4 dd
+drop table t1;
+#
+# MDEV-12558: CTE with the same name as temporary table
+#
+CREATE TABLE t ENGINE=MyISAM AS SELECT 1 AS i;
+CREATE TEMPORARY TABLE cte ENGINE=MyISAM AS SELECT 2 AS f;
+WITH cte AS ( SELECT i FROM t ) SELECT * FROM cte;
+i
+1
+WITH cte AS ( SELECT i FROM t GROUP BY i) SELECT * FROM cte;
+i
+1
+SELECT * FROM cte;
+f
+2
+DROP TABLE cte;
+DROP TABLE t;
+#
+# MDEV-13107: SHOW TABLE STATUS, SHOW CREATE VIEW
+# for CTEs that use derived tables
+#
+create table t1(a int) engine=myisam;
+insert into t1 values (3), (1), (2);
+create table t2 (b int) engine=myisam;
+insert into t2 values (2), (10);
+create view v1 as
+with t as (select s.a from (select t1.a from t1) s),
+r as(select t.a from t2, t where t2.b=t.a)
+select a from r;
+create view v2 as
+with t as (select s.a from (select t1.a from t1) s),
+r as(select t.a from t2, t where t2.b=t.a)
+select a from t1;
+show table status;
+show create view v1;
+View Create View character_set_client collation_connection
+v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS with t as (select `s`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1`) `s`), r as (select `t`.`a` AS `a` from (`test`.`t2` join `t`) where `test`.`t2`.`b` = `t`.`a`)select `r`.`a` AS `a` from `r` latin1 latin1_swedish_ci
+show create view v2;
+View Create View character_set_client collation_connection
+v2 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS with t as (select `s`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1`) `s`), r as (select `t`.`a` AS `a` from (`test`.`t2` join `t`) where `test`.`t2`.`b` = `t`.`a`)select `test`.`t1`.`a` AS `a` from `test`.`t1` latin1 latin1_swedish_ci
+select * from v1;
+a
+2
+select * from v2;
+a
+3
+1
+2
+prepare stmt1 from "select * from v1";
+execute stmt1;
+a
+2
+execute stmt1;
+a
+2
+prepare stmt2 from "select * from v2";
+execute stmt2;
+a
+3
+1
+2
+execute stmt2;
+a
+3
+1
+2
+deallocate prepare stmt1;
+deallocate prepare stmt2;
+drop view v1,v2;
+drop table t1,t2;
+#
+# MDEV-13796: UNION of two materialized CTEs
+#
+CREATE TABLE t1 (id int, k int);
+CREATE TABLE t2 (id int);
+INSERT INTO t1 VALUES (3,5), (1,7), (4,3);
+INSERT INTO t2 VALUES (4), (3), (2);
+WITH d1 AS (SELECT SUM(k) FROM t1, t2 as t2 WHERE t1.id = t2.id),
+d2 AS (SELECT SUM(k) FROM t1, t2 as t2 WHERE t1.id = t2.id)
+SELECT * FROM d1 UNION SELECT * FROM d2;
+SUM(k)
+8
+explain WITH d1 AS (SELECT SUM(k) FROM t1, t2 as t2 WHERE t1.id = t2.id),
+d2 AS (SELECT SUM(k) FROM t1, t2 as t2 WHERE t1.id = t2.id)
+SELECT * FROM d1 UNION SELECT * FROM d2;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9
+2 DERIVED t1 ALL NULL NULL NULL NULL 3
+2 DERIVED t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
+4 UNION <derived3> ALL NULL NULL NULL NULL 9
+3 DERIVED t1 ALL NULL NULL NULL NULL 3
+3 DERIVED t2 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
+NULL UNION RESULT <union1,4> ALL NULL NULL NULL NULL NULL
+DROP TABLE t1,t2;
+#
+# MDEV-13780: tower of embedding CTEs with multiple usage of them
+#
+create table t1 (a int);
+insert into t1 values (3), (2), (4), (7), (1), (2), (5);
+with cte_e as
+(
+with cte_o as
+(
+with cte_i as (select * from t1 where a < 7)
+select * from cte_i where a > 1
+)
+select * from cte_o as cto_o1 where a < 3
+union
+select * from cte_o as cto_o2 where a > 4
+)
+select * from cte_e as cte_e1 where a > 1
+union
+select * from cte_e as cte_e2;
+a
+2
+5
+explain extended with cte_e as
+(
+with cte_o as
+(
+with cte_i as (select * from t1 where a < 7)
+select * from cte_i where a > 1
+)
+select * from cte_o as cto_o1 where a < 3
+union
+select * from cte_o as cto_o2 where a > 4
+)
+select * from cte_e as cte_e1 where a > 1
+union
+select * from cte_e as cte_e2;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 14 100.00 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 7 100.00 Using where
+5 UNION t1 ALL NULL NULL NULL NULL 7 100.00 Using where
+NULL UNION RESULT <union2,5> ALL NULL NULL NULL NULL NULL NULL
+6 UNION <derived14> ALL NULL NULL NULL NULL 14 100.00
+14 DERIVED t1 ALL NULL NULL NULL NULL 7 100.00 Using where
+11 UNION t1 ALL NULL NULL NULL NULL 7 100.00 Using where
+NULL UNION RESULT <union14,11> ALL NULL NULL NULL NULL NULL NULL
+NULL UNION RESULT <union1,6> ALL NULL NULL NULL NULL NULL NULL
+Warnings:
+Note 1003 with cte_e as (with cte_o as (with cte_i as (/* select#4 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 7)/* select#3 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 1)/* select#2 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 3 and `test`.`t1`.`a` > 1 and `test`.`t1`.`a` < 7 and `test`.`t1`.`a` > 1 union /* select#5 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 4 and `test`.`t1`.`a` > 1 and `test`.`t1`.`a` < 7 and `test`.`t1`.`a` > 1)/* select#1 */ select `cte_e1`.`a` AS `a` from `cte_e` `cte_e1` where `cte_e1`.`a` > 1 union /* select#6 */ select `cte_e2`.`a` AS `a` from `cte_e` `cte_e2`
+drop table t1;
+#
+# MDEV-13753: embedded CTE in a VIEW created in prepared statement
+#
+SET @sql_query = "
+ CREATE OR REPLACE VIEW cte_test AS
+ WITH cte1 AS ( SELECT 1 as a from dual )
+ , cte2 AS ( SELECT * FROM cte1 )
+ SELECT * FROM cte2;
+";
+PREPARE stmt FROM @sql_query;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+SHOW CREATE VIEW cte_test;
+View Create View character_set_client collation_connection
+cte_test CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `cte_test` AS with cte1 as (select 1 AS `a`), cte2 as (select `cte1`.`a` AS `a` from `cte1`)select `cte2`.`a` AS `a` from `cte2` latin1 latin1_swedish_ci
+SELECT * FROM cte_test;
+a
+1
+DROP VIEW cte_test;
+#
+# mdev-14755 : PS for query using CTE in select with subquery
+#
+create table t1 (a int);
+insert into t1 values
+(7), (2), (8), (1), (3), (2), (7), (5), (4), (7), (9), (8);
+with cte as
+(select a from t1 where a between 4 and 7 group by a)
+(select a from cte where exists( select a from t1 where cte.a=t1.a ))
+union
+(select a from t1 where a < 2);
+a
+4
+5
+7
+1
+prepare stmt from "with cte as
+(select a from t1 where a between 4 and 7 group by a)
+(select a from cte where exists( select a from t1 where cte.a=t1.a ))
+union
+(select a from t1 where a < 2)";
+execute stmt;
+a
+4
+5
+7
+1
+execute stmt;
+a
+4
+5
+7
+1
+deallocate prepare stmt;
+with cte as
+(select a from t1 where a between 4 and 7 group by a)
+(select a from t1 where a < 2)
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ));
+a
+1
+4
+5
+7
+prepare stmt from "with cte as
+(select a from t1 where a between 4 and 7 group by a)
+(select a from t1 where a < 2)
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ))";
+execute stmt;
+a
+1
+4
+5
+7
+execute stmt;
+a
+1
+4
+5
+7
+deallocate prepare stmt;
+with cte as
+(select a from t1 where a between 4 and 7)
+(select a from t1 where a < 2)
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ));
+a
+1
+7
+5
+4
+prepare stmt from "with cte as
+(select a from t1 where a between 4 and 7)
+(select a from t1 where a < 2)
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ))";
+execute stmt;
+a
+1
+7
+5
+4
+execute stmt;
+a
+1
+7
+5
+4
+deallocate prepare stmt;
+with cte as
+(select a from t1 where a between 4 and 7)
+(select a from cte
+where exists( select a from t1 where t1.a < 2 and cte.a=t1.a ))
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ));
+a
+7
+5
+4
+prepare stmt from "with cte as
+(select a from t1 where a between 4 and 7)
+(select a from cte
+where exists( select a from t1 where t1.a < 2 and cte.a=t1.a ))
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ))";
+execute stmt;
+a
+7
+5
+4
+execute stmt;
+a
+7
+5
+4
+deallocate prepare stmt;
+drop table t1;
+#
+# MDEV-14852: CTE using temporary table in query
+# with two references to the CTE
+#
+create temporary table t1 (i int);
+insert into t1 values (5),(4),(1),(2),(3);
+with
+c1 as (select i from t1),
+c2 as (select i from c1 where c1.i=2)
+select i from c1 where i > 3 union select i from c2;
+i
+5
+4
+2
+drop table t1;
+create table t1 (term char(10));
+create temporary table t2 (term char(10));
+insert into t1 values ('TERM01'),('TERM02'),('TERM03');
+insert into t2 values ('TERM02'),('TERM03'),('TERM04');
+with c1 as (select * from t1), c2 as (select * from t2)
+(select * from c1 left outer join c2 on c1.term = c2.term)
+union all
+(select * from c1 right outer join c2 on c1.term = c2.term
+where c1.term is null);
+term term
+TERM02 TERM02
+TERM03 TERM03
+TERM01 NULL
+NULL TERM04
+drop table t1,t2;
+#
+# MDEV-14969: view using subquery with attached CTE
+#
+create table region (
+r_regionkey int,
+r_name char(25),
+primary key (r_regionkey)
+);
+insert into region values
+(0,'AFRICA'), (1,'AMERICA'), (2,'ASIA'), (3,'EUROPE'), (4,'MIDDLE EAST');
+create table nation (
+n_nationkey int,
+n_name char(25),
+n_regionkey int,
+primary key (n_nationkey),
+key i_n_regionkey (n_regionkey)
+);
+insert into nation values
+(0,'ALGERIA',0), (1,'ARGENTINA',1), (2,'BRAZIL',1), (3,'CANADA',1),
+(4,'EGYPT',4), (5,'ETHIOPIA',0), (6,'FRANCE',3), (7,'GERMANY',3),
+(8,'INDIA',2), (9,'INDONESIA',2), (10,'IRAN',4), (11,'IRAQ',4),
+(12,'JAPAN',2), (13,'JORDAN',4), (14,'KENYA',0), (15,'MOROCCO',0),
+(16,'MOZAMBIQUE',0), (17,'PERU',1), (18,'CHINA',2), (19,'ROMANIA',3),
+(20,'SAUDI ARABIA',4), (21,'VIETNAM',2), (22,'RUSSIA',3),
+(23,'UNITED KINGDOM',3), (24,'UNITED STATES',1);
+select * from nation n ,region r
+where n.n_regionkey = r.r_regionkey and
+r.r_regionkey in
+(with t as (select * from region where r_regionkey <= 3 )
+select r_regionkey from t where r_name <> "ASIA");
+n_nationkey n_name n_regionkey r_regionkey r_name
+0 ALGERIA 0 0 AFRICA
+5 ETHIOPIA 0 0 AFRICA
+14 KENYA 0 0 AFRICA
+15 MOROCCO 0 0 AFRICA
+16 MOZAMBIQUE 0 0 AFRICA
+1 ARGENTINA 1 1 AMERICA
+2 BRAZIL 1 1 AMERICA
+3 CANADA 1 1 AMERICA
+17 PERU 1 1 AMERICA
+24 UNITED STATES 1 1 AMERICA
+6 FRANCE 3 3 EUROPE
+7 GERMANY 3 3 EUROPE
+19 ROMANIA 3 3 EUROPE
+22 RUSSIA 3 3 EUROPE
+23 UNITED KINGDOM 3 3 EUROPE
+create view v as
+select * from nation n ,region r
+where n.n_regionkey = r.r_regionkey and
+r.r_regionkey in
+(with t as (select * from region where r_regionkey <= 3)
+select r_regionkey from t where r_name <> "ASIA");
+show create view v;
+View Create View character_set_client collation_connection
+v CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v` AS select `n`.`n_nationkey` AS `n_nationkey`,`n`.`n_name` AS `n_name`,`n`.`n_regionkey` AS `n_regionkey`,`r`.`r_regionkey` AS `r_regionkey`,`r`.`r_name` AS `r_name` from (`test`.`nation` `n` join `test`.`region` `r`) where `n`.`n_regionkey` = `r`.`r_regionkey` and `r`.`r_regionkey` in (with t as (select `test`.`region`.`r_regionkey` AS `r_regionkey`,`test`.`region`.`r_name` AS `r_name` from `test`.`region` where `test`.`region`.`r_regionkey` <= 3)select `t`.`r_regionkey` from `t` where `t`.`r_name` <> 'ASIA') latin1 latin1_swedish_ci
+select * from v;
+n_nationkey n_name n_regionkey r_regionkey r_name
+0 ALGERIA 0 0 AFRICA
+5 ETHIOPIA 0 0 AFRICA
+14 KENYA 0 0 AFRICA
+15 MOROCCO 0 0 AFRICA
+16 MOZAMBIQUE 0 0 AFRICA
+1 ARGENTINA 1 1 AMERICA
+2 BRAZIL 1 1 AMERICA
+3 CANADA 1 1 AMERICA
+17 PERU 1 1 AMERICA
+24 UNITED STATES 1 1 AMERICA
+6 FRANCE 3 3 EUROPE
+7 GERMANY 3 3 EUROPE
+19 ROMANIA 3 3 EUROPE
+22 RUSSIA 3 3 EUROPE
+23 UNITED KINGDOM 3 3 EUROPE
+drop view v;
+drop table region, nation;
+#
+# MDEV-15120: cte name used with database name
+#
+WITH cte AS (SELECT 1 AS a) SELECT test.cte.a FROM test.cte;
+ERROR 42S02: Table 'test.cte' doesn't exist
+CREATE DATABASE db1;
+USE db1;
+WITH cte AS (SELECT 1 AS a) SELECT db1.cte.a FROM db1.cte;
+ERROR 42S02: Table 'db1.cte' doesn't exist
+DROP DATABASE db1;
+USE test;
+#
+# MDEV-15119: CTE c2 specified after CTE c1 and is used in
+# CTE c3 that is embedded into the spec of c1
+#
+CREATE TABLE t1 (i int);
+INSERT INTO t1 VALUES (1),(2),(3);
+WITH c1 AS (WITH c3 AS (SELECT * FROM c2) SELECT * FROM c3),
+c2 AS (SELECT * FROM t1)
+SELECT * FROM c1;
+ERROR 42S02: Table 'test.c2' doesn't exist
+WITH RECURSIVE c1 AS (WITH c3 AS (SELECT * FROM c2) SELECT * FROM c3),
+c2 AS (SELECT * FROM t1)
+SELECT * FROM c1;
+i
+1
+2
+3
+DROP TABLE t1;
+#
+# MDEV-14297: Lost name of a explicitly named CTE column used in
+# the non-recursive CTE via prepared statement
+#
+CREATE TABLE t1 (i int);
+INSERT INTO t1 VALUES (1),(2),(3);
+PREPARE stmt FROM "WITH cte(a) AS (SELECT 1) SELECT * FROM cte";
+EXECUTE stmt;
+a
+1
+DEALLOCATE PREPARE stmt;
+PREPARE stmt FROM "CREATE VIEW v1 AS WITH cte(a) AS (SELECT 1) SELECT * FROM cte";
+EXECUTE stmt;
+SELECT * FROM v1;
+a
+1
+DEALLOCATE PREPARE stmt;
+PREPARE stmt FROM "CREATE VIEW v2 AS WITH cte(a) AS (SELECT * FROM t1) SELECT * FROM cte";
+EXECUTE stmt;
+SELECT * FROM v2;
+a
+1
+2
+3
+DEALLOCATE PREPARE stmt;
+DROP TABLE t1;
+DROP VIEW v1,v2;
+#
+# MDEV-15478: Lost name of a explicitly named CTE column used in
+# the non-recursive CTE defined with UNION
+#
+CREATE TABLE t1 (x int, y int);
+INSERT INTO t1 VALUES (1,2),(2,7),(3,3);
+WITH cte(a) AS (SELECT 1 UNION SELECT 2) SELECT * FROM cte;
+a
+1
+2
+WITH cte(a) AS (SELECT 1 UNION SELECT 2) SELECT a FROM cte;
+a
+1
+2
+WITH cte(a) AS (SELECT 1 UNION ALL SELECT 1) SELECT a FROM cte;
+a
+1
+1
+WITH cte(a) AS (SELECT x from t1 UNION SELECT 4) SELECT a FROM cte;
+a
+1
+2
+3
+4
+WITH cte(a) AS (SELECT 4 UNION SELECT x FROM t1 UNION SELECT 5)
+SELECT a FROM cte;
+a
+4
+1
+2
+3
+5
+WITH cte(a,b) AS (SELECT 4,5 UNION SELECT 4,3) SELECT a,b FROM cte;
+a b
+4 5
+4 3
+DROP TABLE t1;
+#
+# MDEV-16353: unreferenced CTE specified by query with UNION
+#
+with cte as
+(select 1 union select 2 union select 3)
+select 1 as f;
+f
+1
+create table t1 (a int);
+insert into t1 values (2), (1), (7), (1), (4);
+with cte as
+(select * from t1 where a < 2 union select * from t1 where a > 5)
+select 2 as f;
+f
+2
+drop table t1;
+#
+# MDEV-16473: query with CTE when no database is set
+#
+create database db_mdev_16473;
+use db_mdev_16473;
+drop database db_mdev_16473;
+# Now no default database is set
+select database();
+database()
+NULL
+with cte as (select 1 as a) select * from cte;
+a
+1
+create database db_mdev_16473;
+create table db_mdev_16473.t1 (a int);
+insert into db_mdev_16473.t1 values (2), (7), (3), (1);
+with cte as (select * from db_mdev_16473.t1) select * from cte;
+a
+2
+7
+3
+1
+with cte as (select * from db_mdev_16473.t1)
+select * from cte, t1 as t where cte.a=t.a;
+ERROR 3D000: No database selected
+with cte as (select * from db_mdev_16473.t1)
+select * from cte, db_mdev_16473.t1 as t where cte.a=t.a;
+a a
+2 2
+7 7
+3 3
+1 1
+drop database db_mdev_16473;
+use test;
+#
+# MDEV-17154: using parameter markers for PS within CTEs more than once
+# using local variables in SP within CTEs more than once
+#
+prepare stmt from "
+with cte(c) as (select ? ) select r.c, s.c+10 from cte as r, cte as s;
+";
+set @a=2;
+execute stmt using @a;
+c s.c+10
+2 12
+set @a=5;
+execute stmt using @a;
+c s.c+10
+5 15
+deallocate prepare stmt;
+prepare stmt from "
+with cte(c) as (select ? ) select c from cte union select c+10 from cte;
+";
+set @a=2;
+execute stmt using @a;
+c
+2
+12
+set @a=5;
+execute stmt using @a;
+c
+5
+15
+deallocate prepare stmt;
+prepare stmt from "
+with cte_e(a,b) as
+(
+ with cte_o(c) as (select ?)
+ select r.c+10, s.c+20 from cte_o as r, cte_o as s
+)
+select * from cte_e as cte_e1 where a > 12
+union all
+select * from cte_e as cte_e2;
+";
+set @a=2;
+execute stmt using @a;
+a b
+12 22
+set @a=5;
+execute stmt using @a;
+a b
+15 25
+15 25
+deallocate prepare stmt;
+create table t1 (a int, b int);
+insert into t1 values
+(3,33), (1,17), (7,72), (4,45), (2,27), (3,35), (4,47), (3,38), (2,22);
+prepare stmt from "
+with cte as (select * from t1 where a < ? and b > ?)
+ select r.a, r.b+10, s.a, s.b+20 from cte as r, cte as s where r.a=s.a+1;
+";
+set @a=4, @b=20;
+execute stmt using @a,@b;
+a r.b+10 a s.b+20
+3 43 2 47
+3 45 2 47
+3 48 2 47
+3 43 2 42
+3 45 2 42
+3 48 2 42
+set @a=5, @b=20;
+execute stmt using @a,@b;
+a r.b+10 a s.b+20
+4 55 3 53
+4 57 3 53
+3 43 2 47
+3 45 2 47
+3 48 2 47
+4 55 3 55
+4 57 3 55
+4 55 3 58
+4 57 3 58
+3 43 2 42
+3 45 2 42
+3 48 2 42
+deallocate prepare stmt;
+create procedure p1()
+begin
+declare i int;
+set i = 0;
+while i < 4 do
+insert into t1
+with cte(a) as (select i) select r.a-1, s.a+1 from cte as r, cte as s;
+set i = i+1;
+end while;
+end|
+create procedure p2(in i int)
+begin
+insert into t1
+with cte(a) as (select i) select r.a-1, s.a+1 from cte as r, cte as s;
+end|
+delete from t1;
+call p1();
+select * from t1;
+a b
+-1 1
+0 2
+1 3
+2 4
+call p1();
+select * from t1;
+a b
+-1 1
+0 2
+1 3
+2 4
+-1 1
+0 2
+1 3
+2 4
+delete from t1;
+call p2(3);
+select * from t1;
+a b
+2 4
+call p2(7);
+select * from t1;
+a b
+2 4
+6 8
+drop procedure p1;
+drop procedure p2;
+drop table t1;
+#
+# MDEV-17107: PS for CREATE OR REPLACE VIEW defined by SELECT with CTEs
+#
+create table t1(a int);
+insert into t1 values (3), (1), (2);
+create table t2 (b int);
+insert into t2 values (2), (10);
+prepare stmt from
+"create or replace view v1 as
+ with t as (select s.a from (select t1.a from t1) s),
+ r as(select t.a from t2, t where t2.b=t.a)
+ select a from r;";
+execute stmt;
+select * from v1;
+a
+2
+drop view v1;
+drop table t1,t2;
+#
+# MDEV-19112: CTE usage when information_schema is set as default db
+#
+with t as (select 1 as t ) select * from t;
+t
+1
+use information_schema;
+with t as (select 1 as t) select * from t;
+t
+1
+with columns as (select 1 as t) select * from columns;
+t
+1
+use test;
+#
+# MDEV-18460: Server crashed in strmake / tdc_create_key /
+# THD::create_tmp_table_def_key
+#
+connect con1,localhost,root,,;
+CREATE TEMPORARY TABLE test.t (a INT);
+WITH cte AS (SELECT 1) SELECT * FROM cte;
+1
+1
+WITH t AS (SELECT 1) SELECT * FROM t;
+1
+1
+WITH cte AS (SELECT 1) SELECT * FROM t;
+ERROR 3D000: No database selected
+DROP TABLE test.t;
+connection default;
+disconnect con1;
+#
+# MDEV-22781: create view with CTE without default database
+#
+drop database test;
+create database db1;
+create table db1.t1 (a int);
+insert into db1.t1 values (3),(7),(1);
+create view db1.v1 as with t as (select * from db1.t1) select * from t;
+show create view db1.v1;
+View Create View character_set_client collation_connection
+v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `db1`.`v1` AS with t as (select `db1`.`t1`.`a` AS `a` from `db1`.`t1`)select `t`.`a` AS `a` from `t` latin1 latin1_swedish_ci
+select * from db1.v1;
+a
+3
+7
+1
+drop view db1.v1;
+prepare stmt from "
+create view db1.v1 as with t as (select * from db1.t1) select * from t;
+";
+execute stmt;
+deallocate prepare stmt;
+show create view db1.v1;
+View Create View character_set_client collation_connection
+v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `db1`.`v1` AS with t as (select `db1`.`t1`.`a` AS `a` from `db1`.`t1`)select `t`.`a` AS `a` from `t` latin1 latin1_swedish_ci
+select * from db1.v1;
+a
+3
+7
+1
+drop view db1.v1;
+drop table db1.t1;
+drop database db1;
+create database test;
+use test;
+#
+# MDEV-24597: CTE with union used multiple times in query
+#
+with cte(a) as
+(select 1 as d union select 2 as d)
+select a from cte as r1
+union
+select a from cte as r2;
+a
+1
+2
+create table t1 (a int, b int) engine=myisam;
+insert into t1 values
+(3,30), (7,70), (1,10), (7,71), (2,20), (7,72), (3,33), (4,44),
+(5,50), (4,40), (3,33), (4,42), (4,43), (5,51);
+with cte(c) as
+(select a from t1 where b < 30 union select a from t1 where b > 40)
+select * from cte as r1, cte as r2 where r1.c = r2.c;
+c c
+1 1
+2 2
+7 7
+4 4
+5 5
+with cte(a,c) as
+(
+select a, count(*) from t1 group by a having count(*) = 1
+union
+select a, count(*) from t1 group by a having count(*) = 3
+)
+select a, c from cte as r1 where a < 3
+union
+select a, c from cte as r2 where a > 4;
+a c
+1 1
+2 1
+7 3
+drop table t1;
+#
+# MDEV-23886: Stored Function returning the result of a query
+# that uses CTE over a table twice
+#
+create table t1 (c1 int);
+insert into t1 values (1),(2),(6);
+create function f1() returns int return
+( with cte1 as (select c1 from t1)
+select sum(c1) from
+(select * from cte1 union all select * from cte1) dt
+);
+select f1();
+f1()
+18
+create function f2() returns int return
+( with cte1 as (select c1 from t1)
+select sum(s.c1) from cte1 as s, cte1 as t where s.c1=t.c1
+);
+select f2();
+f2()
+9
+create function f3() returns int return
+( with cte1 as (select c1 from t1)
+select
+case
+when exists(select 1 from cte1 where c1 between 1 and 2) then 1
+when exists(select 1 from cte1 where c1 between 5 and 6) then 2
+else 0
+end
+);
+select f3();
+f3()
+1
+create view v1 as (select c1 from t1);
+create function f4() returns int return
+( select sum(c1) from
+(select * from v1 union all select * from v1) dt
+);
+select f4();
+f4()
+18
+create function f5() returns int return
+( select sum(s.c1) from v1 as s, v1 as t where s.c1=t.c1
+);
+select f5();
+f5()
+9
+create view v2(s) as
+with cte1 as (select c1 from t1)
+select sum(c1) from (select * from cte1 union all select * from cte1) dt;
+create function f6() returns int return
+(select s from v2);
+select f6();
+f6()
+18
+create function f7() returns int return
+( select r.s from v2 as r, v2 as t where r.s=t.s
+);
+select f7();
+f7()
+18
+select f5() + f6();
+f5() + f6()
+27
+prepare stmt from "select f5() + f6();";
+execute stmt;
+f5() + f6()
+27
+execute stmt;
+f5() + f6()
+27
+deallocate prepare stmt;
+drop function f1;
+drop function f2;
+drop function f3;
+drop function f4;
+drop function f5;
+drop function f6;
+drop function f7;
+drop view v1;
+drop view v2;
+create table t2 (a int, b int);
+insert into t2
+with cte1 as (select c1 from t1)
+select * from cte1 as s, cte1 as t where s.c1=t.c1 and s.c1 > 5;
+select * from t2;
+a b
+6 6
+create procedure p1()
+begin
+insert into t2
+with cte1 as (select c1 from t1)
+select * from cte1 as s, cte1 as t where s.c1=t.c1 and s.c1 <= 2 and t.c1 >= 2;
+end |
+call p1();
+select * from t2;
+a b
+6 6
+2 2
+drop procedure p1;
+# checking CTE resolution for queries with hanging CTEs
+with
+cte1(a) as (select * from t1 where c1 <= 2),
+cte2(b) as (select * from cte1 where a >= 2),
+cte3 as (select * from cte1,cte2 where cte1.a < cte2.b)
+select * from cte3;
+a b
+1 2
+select * from t2;
+a b
+6 6
+2 2
+with
+cte1(a) as (select * from t1 where c1 <= 2),
+cte2(b) as (select * from cte1 where a >= 2),
+cte3 as (select * from cte1,cte2 where cte1.a < cte2.b)
+select * from t2;
+a b
+6 6
+2 2
+with
+cte1(a) as (select * from t1 where c1 <= 2),
+cte2(b) as (select * from cte1 where c1 >= 2),
+cte3 as (select * from cte1,cte2 where cte1.a < cte2.b)
+select * from t2;
+ERROR 42S22: Unknown column 'c1' in 'where clause'
+with
+cte1(a) as (select * from t1 where c1 <= 2),
+cte2(b) as (select * from cte1 where a >= 2),
+cte3 as (select * from cte1,cte2 where cte1.a < cte2.c1)
+select * from t2;
+ERROR 42S22: Unknown column 'cte2.c1' in 'where clause'
+with
+cte1 as (select * from t1 where c1 <= 2),
+cte2(a,b) as (select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+select * from cte2;
+a b
+1 1
+2 2
+with
+cte1 as (select * from t1 where c1 <= 2),
+cte2(a,b) as (select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+select * from t2;
+a b
+6 6
+2 2
+with
+cte1 as (select * from t1 where c1 <= 2),
+cte2(a,b) as (select * from cte1 as s1, cte1 as s2 where s1.c1=c1)
+select * from t2;
+ERROR 23000: Column 'c1' in where clause is ambiguous
+with cte3 as
+( with cte2(a,b) as
+( with cte1 as (select * from t1 where c1 <= 2)
+select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+select r1.a,r2.b from cte2 as r1, cte2 as r2)
+select * from cte3;
+a b
+1 1
+2 1
+1 2
+2 2
+with cte3 as
+( with cte2(a,b) as
+( with cte1 as (select * from t1 where c1 <= 2)
+select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+select r1.a,r2.b from cte2 as r1, cte2 as r2)
+select * from t2;
+a b
+6 6
+2 2
+with cte3 as
+( with cte2(a,b) as
+( with cte1 as (select * from t1 where c1 <= 2)
+select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+select r1.c1,r2.c1 from cte2 as r1, cte2 as r2)
+select * from t2;
+ERROR 42S22: Unknown column 'r1.c1' in 'field list'
+create procedure p1()
+begin
+insert into t2
+with cte1 as (select c1 from t1)
+select * from t1 as s, t1 as t where s.c1=t.c1 and s.c1 <= 2 and t.c1 >= 2;
+end |
+call p1();
+select * from t2;
+a b
+6 6
+2 2
+2 2
+drop procedure p1;
+create procedure p1()
+begin
+insert into t2
+with cte1 as (select a from t1)
+select * from t1 as s, t1 as t where s.c1=t.c1 and s.c1 <= 2 and t.c1 >= 2;
+end |
+call p1();
+ERROR 42S22: Unknown column 'a' in 'field list'
+drop procedure p1;
+drop table t1,t2;
++#
++# MDEV-20411: SP containing only one SELECT with WITH clause
++#
++create procedure sp1 ()
++with cte as (select 1 as a) select * from cte;
++call sp1();
++a
++1
++call sp1();
++a
++1
++create table t1 (a int);
++insert into t1 values (3), (7), (1), (7), (1), (1), (3), (1), (5);
++create procedure sp2 ()
++with cte as (select * from t1) select * from cte;
++call sp2();
++a
++3
++7
++1
++7
++1
++1
++3
++1
++5
++call sp2();
++a
++3
++7
++1
++7
++1
++1
++3
++1
++5
++create procedure sp3 ()
++with cte as (select * from t1 group by a) select * from cte;
++call sp3();
++a
++1
++3
++5
++7
++call sp3();
++a
++1
++3
++5
++7
++drop procedure sp1;
++drop procedure sp2;
++drop procedure sp3;
++drop table t1;
+# End of 10.2 tests
+#
+# MDEV-21673: several references to CTE that uses
+# local variables / parameters of SP
+#
+CREATE TABLE t1 (col1 int);
+CREATE TABLE t2 (col1 int, col2 date, col3 varchar(16), col4 int);
+CREATE TABLE t3 (col1 int, col2 date);
+CREATE TABLE t4 (col1 int, col2 date);
+INSERT INTO t1 VALUES (3), (7), (9), (1);
+INSERT INTO t2 VALUES
+(3,'2019-09-01','AAA',2), (7,'2019-10-01','AAA',4), (3,'2019-10-01','AAA',8),
+(1,'2019-10-01','BBB',9), (1,'2019-10-01','AAA',4), (1,'2019-10-01','AAA',6);
+INSERT INTO t3 VALUES
+(4,'2018-10-01'), (6,'2018-10-01'), (4,'2017-10-01'), (7,'2017-10-01');
+INSERT INTO t4 VALUES
+(5,'2018-10-01'), (8,'2017-10-01'), (4,'2017-10-01');
+CREATE OR REPLACE PROCEDURE SP1()
+BEGIN
+DECLARE p_date date;
+DECLARE p_var2 varchar(16);
+SET p_date='2019-10-01';
+SET p_var2='AAA';
+WITH cte_first(col) AS
+(
+SELECT DISTINCT col4
+FROM t1, t2
+WHERE t2.col1 = t1.col1 AND t2.col2 = p_date AND t2.col3 = p_var2
+),
+cte2 AS
+(
+SELECT DISTINCT col2
+FROM t3
+WHERE col1 IN ( SELECT col FROM cte_first )
+),
+cte3 AS (
+SELECT distinct t4.col1
+FROM cte2, t4
+WHERE t4.col2 = cte2.col2 AND t4.col1 IN ( SELECT col FROM cte_first )
+)
+SELECT * FROM cte3;
+END|
+CREATE PROCEDURE SP2(IN d date)
+BEGIN
+DECLARE p_var2 varchar(16);
+SET p_var2='AAA';
+WITH cte_first(col) AS
+(
+SELECT DISTINCT col4
+FROM t1, t2
+WHERE t2.col1 = t1.col1 AND t2.col2 = d AND t2.col3 = p_var2
+),
+cte2 AS
+(
+SELECT DISTINCT col2
+FROM t3
+WHERE col1 IN ( SELECT col FROM cte_first )
+),
+cte3 AS (
+SELECT distinct t4.col1
+FROM cte2, t4
+WHERE t4.col2 = cte2.col2 AND t4.col1 IN ( SELECT col FROM cte_first )
+)
+SELECT * FROM cte3;
+END|
+CREATE TABLE t AS
+SELECT col4 AS col
+FROM t1, t2
+WHERE t2.col1 = t1.col1 AND t2.col2 ='2019-10-01' AND t2.col3 = 'AAA';
+SELECT * FROM t;
+col
+4
+8
+4
+6
+CREATE TABLE tt AS
+SELECT col2
+FROM t3
+WHERE col1 IN ( SELECT col FROM t );
+SELECT * FROM tt;
+col2
+2018-10-01
+2018-10-01
+2017-10-01
+SELECT t4.col1
+FROM tt, t4
+WHERE t4.col2 = tt.col2 AND t4.col1 IN ( SELECT col FROM t );
+col1
+8
+4
+DROP TABLE t,tt;
+CALL SP1();
+col1
+8
+4
+CALL SP1();
+col1
+8
+4
+CALL SP2('2019-10-01');
+col1
+8
+4
+CALL SP2('2019-10-01');
+col1
+8
+4
+DROP PROCEDURE SP1;
+DROP PROCEDURE SP2;
+DROP TABLE t1,t2,t3,t4;
+# End of 10.3 tests
diff --cc mysql-test/main/cte_nonrecursive.test
index dcb76e47034,00000000000..ac74683ad44
mode 100644,000000..100644
--- a/mysql-test/main/cte_nonrecursive.test
+++ b/mysql-test/main/cte_nonrecursive.test
@@@ -1,1569 -1,0 +1,1598 @@@
+--source include/default_optimizer_switch.inc
+
+create table t1 (a int, b varchar(32));
+insert into t1 values
+ (4,'aaaa' ), (7,'bb'), (1,'ccc'), (4,'dd');
+insert into t1 values
+ (3,'eee'), (7,'bb'), (1,'fff'), (4,'ggg');
+create table t2 (c int);
+insert into t2 values
+ (2), (4), (5), (3);
+
+--echo # select certain field in the specification of t
+with t as (select a from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a;
+select * from t2, (select a from t1 where b >= 'c') as t
+ where t2.c=t.a;
+explain
+with t as (select a from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a;
+explain
+select * from t2, (select a from t1 where b >= 'c') as t
+ where t2.c=t.a;
+
+--echo # select '*' in the specification of t
+with t as (select * from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a;
+select * from t2, (select * from t1 where b >= 'c') as t
+ where t2.c=t.a;
+explain
+with t as (select * from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a;
+explain
+select * from t2, (select * from t1 where b >= 'c') as t
+ where t2.c=t.a;
+
+--echo # rename fields returned by the specication when defining t
+with t(f1,f2) as (select * from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.f1;
+explain
+with t(f1,f2) as (select * from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.f1;
+
+--echo # materialized query specifying t
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+ select * from t2,t where t2.c=t.a;
+select * from t2, (select a, count(*) from t1 where b >= 'c' group by a) as t
+ where t2.c=t.a;
+explain
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+ select * from t2,t where t2.c=t.a;
+explain
+select * from t2, (select a, count(*) from t1 where b >= 'c' group by a) as t
+ where t2.c=t.a;
+
+--echo # specivication of t contains having
+with t as (select a, count(*) from t1 where b >= 'c'
+ group by a having count(*)=1 )
+ select * from t2,t where t2.c=t.a;
+select * from t2, (select a, count(*) from t1 where b >= 'c'
+ group by a having count(*)=1) t
+ where t2.c=t.a;
+
+--echo # main query contains having
+with t as (select * from t2 where c <= 4)
+ select a, count(*) from t1,t where t1.a=t.c group by a having count(*)=1;
+select a, count(*) from t1, (select * from t2 where c <= 4) t
+ where t1.a=t.c group by a having count(*)=1;
+
+--echo # main query contains group by + order by
+with t as (select * from t2 where c <= 4 )
+ select a, count(*) from t1,t where t1.a=t.c group by a order by count(*);
+select a, count(*) from t1, (select * from t2 where c <= 4 ) t
+ where t1.a=t.c group by a order by count(*);
+
+--echo # main query contains group by + order by + limit
+with t as (select * from t2 where c <= 4 )
+ select a, count(*) from t1,t
+ where t1.a=t.c group by a order by count(*) desc limit 1;
+select a, count(*) from t1, (select * from t2 where c <= 4 ) t
+ where t1.a=t.c group by a order by count(*) desc limit 1;
+
+
+--echo # t is used in a subquery
+with t as (select a from t1 where a<5)
+ select * from t2 where c in (select a from t);
+select * from t2
+ where c in (select a from (select a from t1 where a<5) as t);
+explain
+with t as (select a from t1 where a<5)
+ select * from t2 where c in (select a from t);
+explain
+select * from t2
+ where c in (select a from (select a from t1 where a<5) as t);
+
+--echo # materialized t is used in a subquery
+with t as (select count(*) as c from t1 where b >= 'c' group by a)
+ select * from t2 where c in (select c from t);
+select * from t2
+ where c in (select c from (select count(*) as c from t1
+ where b >= 'c' group by a) as t);
+explain
+with t as (select count(*) as c from t1 where b >= 'c' group by a)
+ select * from t2 where c in (select c from t);
+explain
+select * from t2
+ where c in (select c from (select count(*) as c from t1
+ where b >= 'c' group by a) as t);
+
+--echo # two references to t specified by a query
+--echo # selecting a field: both in main query
+with t as (select a from t1 where b >= 'c')
+ select * from t as r1, t as r2 where r1.a=r2.a;
+select * from (select a from t1 where b >= 'c') as r1,
+ (select a from t1 where b >= 'c') as r2
+ where r1.a=r2.a;
+explain
+with t as (select a from t1 where b >= 'c')
+ select * from t as r1, t as r2 where r1.a=r2.a;
+explain
+select * from (select a from t1 where b >= 'c') as r1,
+ (select a from t1 where b >= 'c') as r2
+ where r1.a=r2.a;
+
+--echo # two references to materialized t: both in main query
+with t as (select distinct a from t1 where b >= 'c')
+ select * from t as r1, t as r2 where r1.a=r2.a;
+select * from (select distinct a from t1 where b >= 'c') as r1,
+ (select distinct a from t1 where b >= 'c') as r2
+ where r1.a=r2.a;
+explain
+with t as (select distinct a from t1 where b >= 'c')
+ select * from t as r1, t as r2 where r1.a=r2.a;
+explain
+select * from (select distinct a from t1 where b >= 'c') as r1,
+ (select distinct a from t1 where b >= 'c') as r2
+ where r1.a=r2.a;
+
+--echo # two references to t specified by a query
+--echo # selecting all fields: both in main query
+with t as (select * from t1 where b >= 'c')
+ select * from t as r1, t as r2 where r1.a=r2.a;
+select * from (select * from t1 where b >= 'c') as r1,
+ (select * from t1 where b >= 'c') as r2
+ where r1.a=r2.a;
+explain
+with t as (select * from t1 where b >= 'c')
+ select * from t as r1, t as r2 where r1.a=r2.a;
+explain
+select * from (select * from t1 where b >= 'c') as r1,
+ (select * from t1 where b >= 'c') as r2
+ where r1.a=r2.a;
+
+--echo # two references to t specifying explicitly column names
+with t(c) as (select a from t1 where b >= 'c')
+ select * from t r1, t r2 where r1.c=r2.c;
+
+--echo # t two references of t used in different parts of a union
+with t as (select a from t1 where b >= 'c')
+ select * from t where a < 2
+ union
+ select * from t where a >= 4;
+select * from (select a from t1 where b >= 'c') as t
+ where t.a < 2
+union
+select * from (select a from t1 where b >= 'c') as t
+ where t.a >= 4;
+explain
+with t as (select a from t1 where b >= 'c')
+ select * from t where a < 2
+ union
+ select * from t where a >= 4;
+explain
+select * from (select a from t1 where b >= 'c') as t
+ where t.a < 2
+union
+select * from (select a from t1 where b >= 'c') as t
+ where t.a >= 4;
+
+--echo # specification of t contains union
+with t as (select a from t1 where b >= 'f'
+ union
+ select c as a from t2 where c < 4)
+ select * from t2,t where t2.c=t.a;
+select * from t2,
+ (select a from t1 where b >= 'f'
+ union
+ select c as a from t2 where c < 4) as t
+ where t2.c=t.a;
+explain
+with t as (select a from t1 where b >= 'f'
+ union
+ select c as a from t2 where c < 4)
+ select * from t2,t where t2.c=t.a;
+explain
+select * from t2,
+ (select a from t1 where b >= 'f'
+ union
+ select c as a from t2 where c < 4) as t
+ where t2.c=t.a;
+
+--echo # t is defined in the with clause of a subquery
+select t1.a,t1.b from t1,t2
+ where t1.a>t2.c and
+ t2.c in (with t as (select * from t1 where t1.a<5)
+ select t2.c from t2,t where t2.c=t.a);
+select t1.a,t1.b from t1,t2
+ where t1.a>t2.c and
+ t2.c in (select t2.c
+ from t2,(select * from t1 where t1.a<5) as t
+ where t2.c=t.a);
+explain
+select t1.a,t1.b from t1,t2
+ where t1.a>t2.c and
+ t2.c in (with t as (select * from t1 where t1.a<5)
+ select t2.c from t2,t where t2.c=t.a);
+explain
+select t1.a,t1.b from t1,t2
+ where t1.a>t2.c and
+ t2.c in (select t2.c
+ from t2,(select * from t1 where t1.a<5) as t
+ where t2.c=t.a);
+
+--echo # two different definitions of t: one in the with clause of the main query,
+--echo # the other in the with clause of a subquery
+with t as (select c from t2 where c >= 4)
+ select t1.a,t1.b from t1,t
+ where t1.a=t.c and
+ t.c in (with t as (select * from t1 where t1.a<5)
+ select t2.c from t2,t where t2.c=t.a);
+select t1.a,t1.b from t1, (select c from t2 where c >= 4) as t
+ where t1.a=t.c and
+ t.c in (select t2.c from t2, (select * from t1 where t1.a<5) as t
+ where t2.c=t.a);
+explain
+with t as (select c from t2 where c >= 4)
+ select t1.a,t1.b from t1,t
+ where t1.a=t.c and
+ t.c in (with t as (select * from t1 where t1.a<5)
+ select t2.c from t2,t where t2.c=t.a);
+explain
+select t1.a,t1.b from t1, (select c from t2 where c >= 4) as t
+ where t1.a=t.c and
+ t.c in (select t2.c from t2, (select * from t1 where t1.a<5) as t
+ where t2.c=t.a);
+
+--echo # another with table tt is defined in the with clause of a subquery
+--echo # from the specification of t
+with t as (select * from t1
+ where a>2 and
+ b in (with tt as (select * from t2 where t2.c<5)
+ select t1.b from t1,tt where t1.a=tt.c))
+ select t.a, count(*) from t1,t where t1.a=t.a group by t.a;
+select t.a, count(*)
+ from t1,
+ (select * from t1
+ where a>2 and
+ b in (select t1.b
+ from t1,
+ (select * from t2 where t2.c<5) as tt
+ where t1.a=tt.c)) as t
+ where t1.a=t.a group by t.a;
+explain
+with t as (select * from t1
+ where a>2 and
+ b in (with tt as (select * from t2 where t2.c<5)
+ select t1.b from t1,tt where t1.a=tt.c))
+ select t.a, count(*) from t1,t where t1.a=t.a group by t.a;
+explain
+select t.a, count(*)
+ from t1,
+ (select * from t1
+ where a>2 and
+ b in (select t1.b
+ from t1,
+ (select * from t2 where t2.c<5) as tt
+ where t1.a=tt.c)) as t
+ where t1.a=t.a group by t.a;
+
+--echo # with clause in the specification of a derived table
+select *
+ from t1,
+ (with t as (select a from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a) as tt
+ where t1.b > 'f' and tt.a=t1.a;
+select *
+ from t1,
+ (select * from t2,
+ (select a from t1 where b >= 'c') as t
+ where t2.c=t.a) as tt
+ where t1.b > 'f' and tt.a=t1.a;
+explain
+select *
+ from t1,
+ (with t as (select a from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a) as tt
+ where t1.b > 'f' and tt.a=t1.a;
+explain
+select *
+ from t1,
+ (select * from t2,
+ (select a from t1 where b >= 'c') as t
+ where t2.c=t.a) as tt
+ where t1.b > 'f' and tt.a=t1.a;
+
+--echo # with claused in the specification of a view
+create view v1 as
+with t as (select a from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a;
+show create view v1;
+select * from v1;
+explain
+select * from v1;
+
+--echo # with claused in the specification of a materialized view
+create view v2 as
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+ select * from t2,t where t2.c=t.a;
+show create view v2;
+select * from v2;
+explain
+select * from v2;
+
+--echo # with clause in the specification of a view that whose definition
+--echo # table alias for a with table
+create view v3 as
+with t(c) as (select a from t1 where b >= 'c')
+select * from t r1 where r1.c=4;
+show create view v3;
+select * from v3;
+
+--echo # with clause in the specification of a view that whose definition
+--echo # two table aliases for for the same with table
+create view v4(c,d) as
+with t(c) as (select a from t1 where b >= 'c')
+select * from t r1, t r2 where r1.c=r2.c and r2.c=4;
+show create view v4;
+select * from v4;
+explain
+select * from v4;
+
+drop view v1,v2,v3,v4;
+
+
+--echo # currently any views containing with clause are not updatable
+create view v1(a) as
+with t as (select a from t1 where b >= 'c')
+ select t.a from t2,t where t2.c=t.a;
+--error ER_NON_UPDATABLE_TABLE
+update v1 set a=0 where a > 4;
+drop view v1;
+
+
+--echo # prepare of a query containing a definition of a with table t
+prepare stmt1 from "
+with t as (select a from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.a;
+";
+execute stmt1;
+execute stmt1;
+deallocate prepare stmt1;
+
+--echo # prepare of a query containing a definition of a materialized t
+prepare stmt1 from "
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+ select * from t2,t where t2.c=t.a;
+";
+execute stmt1;
+execute stmt1;
+deallocate prepare stmt1;
+
+--echo # prepare of a query containing two references to with table t
+prepare stmt1 from "
+with t as (select * from t1 where b >= 'c')
+ select * from t as r1, t as r2 where r1.a=r2.a;
+";
+execute stmt1;
+execute stmt1;
+deallocate prepare stmt1;
+
+--ERROR ER_WITH_COL_WRONG_LIST
+with t(f) as (select * from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.f1;
+
+--ERROR ER_DUP_FIELDNAME
+with t(f1,f1) as (select * from t1 where b >= 'c')
+ select * from t2,t where t2.c=t.f1;
+
+--ERROR ER_DUP_QUERY_NAME
+with t as (select * from t2 where c>3),
+ t as (select a from t1 where a>2)
+ select * from t,t1 where t1.a=t.c;
+
+--ERROR ER_NO_SUCH_TABLE
+with t as (select a from s where a<5),
+ s as (select a from t1 where b>='d')
+ select * from t,s where t.a=s.a;
+
+with recursive
+ t as (select a from s where a<5),
+ s as (select a from t1 where b>='d')
+ select * from t,s where t.a=s.a;
+
+--ERROR ER_RECURSIVE_WITHOUT_ANCHORS
+with recursive t as (select * from s where a>2),
+ s as (select a from t1,r where t1.a>r.c),
+ r as (select c from t,t2 where t.a=t2.c)
+ select * from r where r.c<7;
+
+--ERROR ER_RECURSIVE_WITHOUT_ANCHORS
+with recursive
+ t as (select * from s where a>2),
+ s as (select a from t1,r where t1.a>r.c),
+ r as (select c from t,t2 where t.a=t2.c)
+ select * from r where r.c<7;
+
+--ERROR ER_RECURSIVE_WITHOUT_ANCHORS
+with recursive
+ t as (select * from t1
+ where a in (select c from s where b<='ccc') and b>'b'),
+ s as (select * from t1,t2
+ where t1.a=t2.c and t1.c in (select a from t where a<5))
+ select * from s where s.b>'aaa';
+
+--ERROR ER_RECURSIVE_WITHOUT_ANCHORS
+with recursive
+ t as (select * from t1 where b>'aaa' and b <='d')
+ select t.b from t,t2
+ where t.a=t2.c and
+ t2.c in (with recursive
+ s as (select t1.a from s,t1 where t1.a=s.a and t1.b<'c')
+ select * from s);
+--echo #erroneous definition of unreferenced with table t
+--ERROR ER_BAD_FIELD_ERROR
+with t as (select count(*) from t1 where d>='f' group by a)
+ select t1.b from t2,t1 where t1.a = t2.c;
+
+with t as (select count(*) from t1 where b>='f' group by a)
+ select t1.b from t2,t1 where t1.a = t2.c;
+
+--echo #erroneous definition of s referring to unreferenced t
+--ERROR ER_BAD_FIELD_ERROR
+with t(d) as (select count(*) from t1 where b<='ccc' group by b),
+ s as (select * from t1 where a in (select t2.d from t2,t where t2.c=t.d))
+ select t1.b from t1,t2 where t1.a=t2.c;
+--ERROR ER_BAD_FIELD_ERROR
+with t(d) as (select count(*) from t1 where b<='ccc' group by b),
+ s as (select * from t1 where a in (select t2.c from t2,t where t2.c=t.c))
+ select t1.b from t1,t2 where t1.a=t2.c;
+
+with t(d) as (select count(*) from t1 where b<='ccc' group by b),
+ s as (select * from t1 where a in (select t2.c from t2,t where t2.c=t.d))
+ select t1.b from t1,t2 where t1.a=t2.c;
+
+--echo #erroneous definition of unreferenced with table t
+--ERROR ER_WITH_COL_WRONG_LIST
+with t(f) as (select * from t1 where b >= 'c')
+ select t1.b from t2,t1 where t1.a = t2.c;
+
+--echo #erroneous definition of unreferenced with table t
+--ERROR ER_DUP_FIELDNAME
+with t(f1,f1) as (select * from t1 where b >= 'c')
+ select t1.b from t2,t1 where t1.a = t2.c;
+
+--echo # explain for query with unreferenced with table
+
+explain
+with t as (select a from t1 where b >= 'c')
+ select t1.b from t2,t1 where t1.a = t2.c;
+
+explain
+with t as (select a, count(*) from t1 where b >= 'c' group by a)
+ select t1.b from t2,t1 where t1.a = t2.c;
+
+--echo # too many with elements in with clause
+let $m= 65;
+let $i= $m;
+dec $i;
+let $q= with s$m as (select * from t1);
+while ($i)
+{
+ let $q= $q, s$i as (select * from t1) ;
+ dec $i;
+ }
+let $q= $q select * from s$m;
+--ERROR ER_TOO_MANY_DEFINITIONS_IN_WITH_CLAUSE
+eval $q;
+
+drop table t1,t2;
+
+--echo #
+--echo # Bug mdev-9937: View used in the specification of with table
+--echo # refers to the base table with the same name
+--echo #
+
+create table t1 (a int);
+insert into t1 values (20), (30), (10);
+create view v1 as select * from t1 where a > 10;
+
+with t1 as (select * from v1) select * from t1;
+
+drop view v1;
+drop table t1;
+
+--echo #
+--echo # Bug mdev-10058: Invalid derived table with WITH clause
+--echo #
+
+CREATE TABLE t1 (a INT);
+CREATE TABLE t2 (a INT);
+CREATE TABLE t3 (a INT);
+INSERT INTO t1 VALUES (1),(2),(3);
+INSERT INTO t2 VALUES (1),(2),(3);
+INSERT INTO t3 VALUES (1),(2),(3);
+
+--ERROR ER_PARSE_ERROR
+SELECT * FROM (WITH a AS (SELECT * FROM t1) (t2 NATURAL JOIN t3));
+
+SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT * FROM t2 NATURAL JOIN t3) AS d1;
+
+DROP TABLE t1,t2,t3;
+
+--echo #
+--echo # Bug mdev-10344: the WITH clause of the query refers to a view that uses
+--echo # a base table with the same name as a CTE table from the clause
+--echo #
+
+
+create table ten(a int primary key);
+insert into ten values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+create table one_k(a int primary key);
+insert into one_k select A.a + B.a* 10 + C.a * 100 from ten A, ten B, ten C;
+
+create view v1 as select * from ten;
+
+select * from v1;
+
+drop view v1;
+drop table ten, one_k;
+
+--echo #
+--echo # MDEV-10057 : Crash with EXPLAIN + WITH + constant query
+--echo #
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (1),(2),(3);
+SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT 1) AS t1;
+EXPLAIN SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT 1) AS t1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-10058: Suspicious EXPLAIN output for a derived table + WITH + joined table
+--echo #
+CREATE TABLE t1 (a INT);
+CREATE TABLE t2 (a INT);
+CREATE TABLE t3 (a INT);
+INSERT INTO t1 VALUES (1),(2),(3);
+INSERT INTO t2 VALUES (1),(2),(3);
+INSERT INTO t3 VALUES (1),(2),(3);
+--error ER_PARSE_ERROR
+EXPLAIN SELECT * FROM (WITH a AS (SELECT * FROM t1) (t2 NATURAL JOIN t3));
+explain SELECT * FROM (WITH a AS (SELECT * FROM t1) SELECT * FROM t2 NATURAL JOIN t3) AS d1;
+DROP TABLE t1,t2,t3;
+
+--echo #
+--echo # MDEV-10729: Server crashes in st_select_lex::set_explain_type
+--echo #
+CREATE TABLE t1 (i1 INT, KEY(i1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (4),(8);
+
+CREATE TABLE t2 (a2 INT, b2 INT, KEY(b2)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (8,7);
+
+CREATE TABLE t3 (i3 INT) ENGINE=MyISAM;
+INSERT INTO t3 VALUES (2),(6);
+
+SELECT * FROM t1, t2 WHERE a2 = i1 and b2 >= i1 AND i1 IN ( SELECT i3 FROM t3 )
+UNION
+SELECT * FROM t1, t2 WHERE a2 = i1 and b2 >= i1 AND i1 IN ( SELECT i3 FROM t3 )
+;
+DROP TABLE t1,t2,t3;
+
+--echo #
+--echo # MDEV-10923: mergeable CTE used twice in the query
+--echo #
+
+create table employees (
+ name varchar(32),
+ dept varchar(32),
+ country varchar(8)
+);
+
+insert into employees
+values
+('Sergei Golubchik', 'Development', 'DE'),
+('Claudio Nanni', 'Support', 'ES'),
+('Sergei Petrunia', 'Development', 'RU');
+
+with eng as
+(
+ select * from employees
+ where dept in ('Development','Support')
+),
+eu_eng as
+(
+ select * from eng where country IN ('DE','ES','RU')
+)
+select * from eu_eng T1
+where
+ not exists (select 1 from eu_eng T2
+ where T2.country=T1.country
+ and T2.name <> T1.name);
+
+drop table employees;
+
+--echo #
+--echo # MDEV-11818: EXPLAIN EXTENDED for a query with optimized away CTE table
+--echo #
+
+CREATE TABLE t1 (i INT, c VARCHAR(3));
+INSERT INTO t1 VALUES (1,'foo');
+
+EXPLAIN EXTENDED
+WITH cte AS ( SELECT * FROM t1 ) SELECT i FROM cte;
+
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-12185: view defintion contains WITH clause with
+--echo # several specifications of CTE
+--echo #
+
+with
+ alias1 as (select 1 as one),
+ alias2 as (select 2 as two)
+select one, two from alias1, alias2;
+
+create view v1 as
+with
+ alias1 as (select 1 as one),
+ alias2 as (select 2 as two)
+select one, two from alias1, alias2;
+
+select * from v1;
+show create view v1;
+
+drop view v1;
+
+--echo #
+--echo # MDEV-12440: the same CTE table is used twice
+--echo #
+
+create table t1 (a int, b varchar(32));
+insert into t1 values
+ (4,'aaaa' ), (7,'bb'), (1,'ccc'), (4,'dd');
+
+--echo # cte2 is used in the main query and in the spec for ct3
+with
+cte1 as (select * from t1 where b >= 'c'),
+cte2 as (select * from cte1 where a < 7),
+cte3 as (select * from cte2 where a > 1)
+select * from cte2, cte3 where cte2.a = cte3.a;
+
+--echo # cte2 is used twice in the spec for ct3
+with
+cte1 as (select * from t1 where b >= 'b'),
+cte2 as (select * from cte1 where b > 'c'),
+cte3 as (select * from cte2 where a > 1 union select * from cte2 where a > 1)
+select * from cte3;
+
+drop table t1;
+
+--echo #
+--echo # MDEV-12558: CTE with the same name as temporary table
+--echo #
+
+CREATE TABLE t ENGINE=MyISAM AS SELECT 1 AS i;
+CREATE TEMPORARY TABLE cte ENGINE=MyISAM AS SELECT 2 AS f;
+
+WITH cte AS ( SELECT i FROM t ) SELECT * FROM cte;
+WITH cte AS ( SELECT i FROM t GROUP BY i) SELECT * FROM cte;
+
+SELECT * FROM cte;
+
+DROP TABLE cte;
+DROP TABLE t;
+
+--echo #
+--echo # MDEV-13107: SHOW TABLE STATUS, SHOW CREATE VIEW
+--echo # for CTEs that use derived tables
+--echo #
+
+create table t1(a int) engine=myisam;
+insert into t1 values (3), (1), (2);
+create table t2 (b int) engine=myisam;
+insert into t2 values (2), (10);
+
+create view v1 as
+with t as (select s.a from (select t1.a from t1) s),
+ r as(select t.a from t2, t where t2.b=t.a)
+ select a from r;
+
+create view v2 as
+with t as (select s.a from (select t1.a from t1) s),
+ r as(select t.a from t2, t where t2.b=t.a)
+ select a from t1;
+
+--disable_result_log
+show table status;
+--enable_result_log
+
+show create view v1;
+show create view v2;
+
+select * from v1;
+select * from v2;
+
+prepare stmt1 from "select * from v1";
+execute stmt1;
+execute stmt1;
+prepare stmt2 from "select * from v2";
+execute stmt2;
+execute stmt2;
+
+deallocate prepare stmt1;
+deallocate prepare stmt2;
+
+drop view v1,v2;
+drop table t1,t2;
+
+--echo #
+--echo # MDEV-13796: UNION of two materialized CTEs
+--echo #
+
+CREATE TABLE t1 (id int, k int);
+CREATE TABLE t2 (id int);
+INSERT INTO t1 VALUES (3,5), (1,7), (4,3);
+INSERT INTO t2 VALUES (4), (3), (2);
+
+let $q=
+WITH d1 AS (SELECT SUM(k) FROM t1, t2 as t2 WHERE t1.id = t2.id),
+ d2 AS (SELECT SUM(k) FROM t1, t2 as t2 WHERE t1.id = t2.id)
+SELECT * FROM d1 UNION SELECT * FROM d2;
+
+eval $q;
+eval explain $q;
+
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-13780: tower of embedding CTEs with multiple usage of them
+--echo #
+
+create table t1 (a int);
+insert into t1 values (3), (2), (4), (7), (1), (2), (5);
+
+let $q=
+with cte_e as
+(
+ with cte_o as
+ (
+ with cte_i as (select * from t1 where a < 7)
+ select * from cte_i where a > 1
+ )
+ select * from cte_o as cto_o1 where a < 3
+ union
+ select * from cte_o as cto_o2 where a > 4
+)
+select * from cte_e as cte_e1 where a > 1
+union
+select * from cte_e as cte_e2;
+
+eval $q;
+eval explain extended $q;
+
+drop table t1;
+
+--echo #
+--echo # MDEV-13753: embedded CTE in a VIEW created in prepared statement
+--echo #
+
+SET @sql_query = "
+ CREATE OR REPLACE VIEW cte_test AS
+ WITH cte1 AS ( SELECT 1 as a from dual )
+ , cte2 AS ( SELECT * FROM cte1 )
+ SELECT * FROM cte2;
+";
+PREPARE stmt FROM @sql_query;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SHOW CREATE VIEW cte_test;
+SELECT * FROM cte_test;
+
+DROP VIEW cte_test;
+
+--echo #
+--echo # mdev-14755 : PS for query using CTE in select with subquery
+--echo #
+
+create table t1 (a int);
+insert into t1 values
+ (7), (2), (8), (1), (3), (2), (7), (5), (4), (7), (9), (8);
+
+let $q1=
+with cte as
+(select a from t1 where a between 4 and 7 group by a)
+(select a from cte where exists( select a from t1 where cte.a=t1.a ))
+union
+(select a from t1 where a < 2);
+
+eval $q1;
+eval prepare stmt from "$q1";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+let $q2=
+with cte as
+(select a from t1 where a between 4 and 7 group by a)
+(select a from t1 where a < 2)
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ));
+
+eval $q2;
+eval prepare stmt from "$q2";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+let $q3=
+with cte as
+(select a from t1 where a between 4 and 7)
+(select a from t1 where a < 2)
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ));
+
+eval $q3;
+eval prepare stmt from "$q3";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+let $q4=
+with cte as
+(select a from t1 where a between 4 and 7)
+(select a from cte
+ where exists( select a from t1 where t1.a < 2 and cte.a=t1.a ))
+union
+(select a from cte where exists( select a from t1 where cte.a=t1.a ));
+
+eval $q4;
+eval prepare stmt from "$q4";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+drop table t1;
+
+--echo #
+--echo # MDEV-14852: CTE using temporary table in query
+--echo # with two references to the CTE
+--echo #
+
+create temporary table t1 (i int);
+insert into t1 values (5),(4),(1),(2),(3);
+
+with
+c1 as (select i from t1),
+c2 as (select i from c1 where c1.i=2)
+select i from c1 where i > 3 union select i from c2;
+
+drop table t1;
+
+create table t1 (term char(10));
+create temporary table t2 (term char(10));
+
+insert into t1 values ('TERM01'),('TERM02'),('TERM03');
+insert into t2 values ('TERM02'),('TERM03'),('TERM04');
+
+with c1 as (select * from t1), c2 as (select * from t2)
+(select * from c1 left outer join c2 on c1.term = c2.term)
+union all
+(select * from c1 right outer join c2 on c1.term = c2.term
+ where c1.term is null);
+
+drop table t1,t2;
+
+--echo #
+--echo # MDEV-14969: view using subquery with attached CTE
+--echo #
+
+create table region (
+ r_regionkey int,
+ r_name char(25),
+ primary key (r_regionkey)
+);
+insert into region values
+(0,'AFRICA'), (1,'AMERICA'), (2,'ASIA'), (3,'EUROPE'), (4,'MIDDLE EAST');
+
+create table nation (
+ n_nationkey int,
+ n_name char(25),
+ n_regionkey int,
+ primary key (n_nationkey),
+ key i_n_regionkey (n_regionkey)
+);
+insert into nation values
+(0,'ALGERIA',0), (1,'ARGENTINA',1), (2,'BRAZIL',1), (3,'CANADA',1),
+(4,'EGYPT',4), (5,'ETHIOPIA',0), (6,'FRANCE',3), (7,'GERMANY',3),
+(8,'INDIA',2), (9,'INDONESIA',2), (10,'IRAN',4), (11,'IRAQ',4),
+(12,'JAPAN',2), (13,'JORDAN',4), (14,'KENYA',0), (15,'MOROCCO',0),
+(16,'MOZAMBIQUE',0), (17,'PERU',1), (18,'CHINA',2), (19,'ROMANIA',3),
+(20,'SAUDI ARABIA',4), (21,'VIETNAM',2), (22,'RUSSIA',3),
+(23,'UNITED KINGDOM',3), (24,'UNITED STATES',1);
+
+select * from nation n ,region r
+ where n.n_regionkey = r.r_regionkey and
+ r.r_regionkey in
+ (with t as (select * from region where r_regionkey <= 3 )
+ select r_regionkey from t where r_name <> "ASIA");
+
+create view v as
+select * from nation n ,region r
+ where n.n_regionkey = r.r_regionkey and
+ r.r_regionkey in
+ (with t as (select * from region where r_regionkey <= 3)
+ select r_regionkey from t where r_name <> "ASIA");
+
+show create view v;
+select * from v;
+
+drop view v;
+drop table region, nation;
+
+--echo #
+--echo # MDEV-15120: cte name used with database name
+--echo #
+
+--error ER_NO_SUCH_TABLE
+WITH cte AS (SELECT 1 AS a) SELECT test.cte.a FROM test.cte;
+
+CREATE DATABASE db1;
+USE db1;
+
+--error ER_NO_SUCH_TABLE
+WITH cte AS (SELECT 1 AS a) SELECT db1.cte.a FROM db1.cte;
+
+DROP DATABASE db1;
+USE test;
+
+--echo #
+--echo # MDEV-15119: CTE c2 specified after CTE c1 and is used in
+--echo # CTE c3 that is embedded into the spec of c1
+--echo #
+
+CREATE TABLE t1 (i int);
+INSERT INTO t1 VALUES (1),(2),(3);
+
+--error ER_NO_SUCH_TABLE
+WITH c1 AS (WITH c3 AS (SELECT * FROM c2) SELECT * FROM c3),
+ c2 AS (SELECT * FROM t1)
+SELECT * FROM c1;
+
+WITH RECURSIVE c1 AS (WITH c3 AS (SELECT * FROM c2) SELECT * FROM c3),
+ c2 AS (SELECT * FROM t1)
+SELECT * FROM c1;
+
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-14297: Lost name of a explicitly named CTE column used in
+--echo # the non-recursive CTE via prepared statement
+--echo #
+
+CREATE TABLE t1 (i int);
+INSERT INTO t1 VALUES (1),(2),(3);
+
+PREPARE stmt FROM "WITH cte(a) AS (SELECT 1) SELECT * FROM cte";
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+PREPARE stmt FROM "CREATE VIEW v1 AS WITH cte(a) AS (SELECT 1) SELECT * FROM cte";
+EXECUTE stmt;
+SELECT * FROM v1;
+DEALLOCATE PREPARE stmt;
+
+PREPARE stmt FROM "CREATE VIEW v2 AS WITH cte(a) AS (SELECT * FROM t1) SELECT * FROM cte";
+EXECUTE stmt;
+SELECT * FROM v2;
+DEALLOCATE PREPARE stmt;
+
+DROP TABLE t1;
+DROP VIEW v1,v2;
+
+--echo #
+--echo # MDEV-15478: Lost name of a explicitly named CTE column used in
+--echo # the non-recursive CTE defined with UNION
+--echo #
+
+CREATE TABLE t1 (x int, y int);
+INSERT INTO t1 VALUES (1,2),(2,7),(3,3);
+
+WITH cte(a) AS (SELECT 1 UNION SELECT 2) SELECT * FROM cte;
+
+WITH cte(a) AS (SELECT 1 UNION SELECT 2) SELECT a FROM cte;
+
+WITH cte(a) AS (SELECT 1 UNION ALL SELECT 1) SELECT a FROM cte;
+
+WITH cte(a) AS (SELECT x from t1 UNION SELECT 4) SELECT a FROM cte;
+
+WITH cte(a) AS (SELECT 4 UNION SELECT x FROM t1 UNION SELECT 5)
+SELECT a FROM cte;
+
+WITH cte(a,b) AS (SELECT 4,5 UNION SELECT 4,3) SELECT a,b FROM cte;
+
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-16353: unreferenced CTE specified by query with UNION
+--echo #
+
+with cte as
+ (select 1 union select 2 union select 3)
+select 1 as f;
+
+create table t1 (a int);
+insert into t1 values (2), (1), (7), (1), (4);
+
+with cte as
+ (select * from t1 where a < 2 union select * from t1 where a > 5)
+select 2 as f;
+
+drop table t1;
+
+--echo #
+--echo # MDEV-16473: query with CTE when no database is set
+--echo #
+
+create database db_mdev_16473;
+use db_mdev_16473;
+drop database db_mdev_16473;
+
+--echo # Now no default database is set
+select database();
+
+with cte as (select 1 as a) select * from cte;
+
+create database db_mdev_16473;
+create table db_mdev_16473.t1 (a int);
+insert into db_mdev_16473.t1 values (2), (7), (3), (1);
+with cte as (select * from db_mdev_16473.t1) select * from cte;
+
+--error ER_NO_DB_ERROR
+with cte as (select * from db_mdev_16473.t1)
+select * from cte, t1 as t where cte.a=t.a;
+with cte as (select * from db_mdev_16473.t1)
+select * from cte, db_mdev_16473.t1 as t where cte.a=t.a;
+
+drop database db_mdev_16473;
+
+use test;
+
+--echo #
+--echo # MDEV-17154: using parameter markers for PS within CTEs more than once
+--echo # using local variables in SP within CTEs more than once
+--echo #
+
+prepare stmt from "
+with cte(c) as (select ? ) select r.c, s.c+10 from cte as r, cte as s;
+";
+set @a=2;
+execute stmt using @a;
+set @a=5;
+execute stmt using @a;
+deallocate prepare stmt;
+
+prepare stmt from "
+with cte(c) as (select ? ) select c from cte union select c+10 from cte;
+";
+set @a=2;
+execute stmt using @a;
+set @a=5;
+execute stmt using @a;
+deallocate prepare stmt;
+
+prepare stmt from "
+with cte_e(a,b) as
+(
+ with cte_o(c) as (select ?)
+ select r.c+10, s.c+20 from cte_o as r, cte_o as s
+)
+select * from cte_e as cte_e1 where a > 12
+union all
+select * from cte_e as cte_e2;
+";
+set @a=2;
+execute stmt using @a;
+set @a=5;
+execute stmt using @a;
+deallocate prepare stmt;
+
+create table t1 (a int, b int);
+insert into t1 values
+ (3,33), (1,17), (7,72), (4,45), (2,27), (3,35), (4,47), (3,38), (2,22);
+
+prepare stmt from "
+with cte as (select * from t1 where a < ? and b > ?)
+ select r.a, r.b+10, s.a, s.b+20 from cte as r, cte as s where r.a=s.a+1;
+";
+set @a=4, @b=20;
+execute stmt using @a,@b;
+set @a=5, @b=20;
+execute stmt using @a,@b;
+deallocate prepare stmt;
+
+delimiter |;
+
+create procedure p1()
+begin
+ declare i int;
+ set i = 0;
+ while i < 4 do
+ insert into t1
+ with cte(a) as (select i) select r.a-1, s.a+1 from cte as r, cte as s;
+ set i = i+1;
+ end while;
+end|
+
+create procedure p2(in i int)
+begin
+ insert into t1
+ with cte(a) as (select i) select r.a-1, s.a+1 from cte as r, cte as s;
+end|
+
+delimiter ;|
+
+delete from t1;
+call p1();
+select * from t1;
+call p1();
+select * from t1;
+
+delete from t1;
+call p2(3);
+select * from t1;
+call p2(7);
+select * from t1;
+
+drop procedure p1;
+drop procedure p2;
+drop table t1;
+
+--echo #
+--echo # MDEV-17107: PS for CREATE OR REPLACE VIEW defined by SELECT with CTEs
+--echo #
+
+create table t1(a int);
+insert into t1 values (3), (1), (2);
+create table t2 (b int);
+insert into t2 values (2), (10);
+
+prepare stmt from
+"create or replace view v1 as
+ with t as (select s.a from (select t1.a from t1) s),
+ r as(select t.a from t2, t where t2.b=t.a)
+ select a from r;";
+
+execute stmt;
+select * from v1;
+
+drop view v1;
+drop table t1,t2;
+
+--echo #
+--echo # MDEV-19112: CTE usage when information_schema is set as default db
+--echo #
+
+with t as (select 1 as t ) select * from t;
+
+use information_schema;
+with t as (select 1 as t) select * from t;
+with columns as (select 1 as t) select * from columns;
+
+use test;
+
+--echo #
+--echo # MDEV-18460: Server crashed in strmake / tdc_create_key /
+--echo # THD::create_tmp_table_def_key
+--echo #
+
+--connect con1,localhost,root,,
+--change_user root,,
+
+CREATE TEMPORARY TABLE test.t (a INT);
+WITH cte AS (SELECT 1) SELECT * FROM cte;
+WITH t AS (SELECT 1) SELECT * FROM t;
+--error ER_NO_DB_ERROR
+WITH cte AS (SELECT 1) SELECT * FROM t;
+DROP TABLE test.t;
+
+--connection default
+--disconnect con1
+
+--echo #
+--echo # MDEV-22781: create view with CTE without default database
+--echo #
+
+drop database test;
+create database db1;
+create table db1.t1 (a int);
+insert into db1.t1 values (3),(7),(1);
+
+create view db1.v1 as with t as (select * from db1.t1) select * from t;
+show create view db1.v1;
+select * from db1.v1;
+drop view db1.v1;
+
+prepare stmt from "
+create view db1.v1 as with t as (select * from db1.t1) select * from t;
+";
+execute stmt;
+deallocate prepare stmt;
+show create view db1.v1;
+select * from db1.v1;
+drop view db1.v1;
+
+drop table db1.t1;
+drop database db1;
+
+create database test;
+use test;
+
+--echo #
+--echo # MDEV-24597: CTE with union used multiple times in query
+--echo #
+
+with cte(a) as
+(select 1 as d union select 2 as d)
+select a from cte as r1
+union
+select a from cte as r2;
+
+create table t1 (a int, b int) engine=myisam;
+insert into t1 values
+(3,30), (7,70), (1,10), (7,71), (2,20), (7,72), (3,33), (4,44),
+(5,50), (4,40), (3,33), (4,42), (4,43), (5,51);
+
+with cte(c) as
+(select a from t1 where b < 30 union select a from t1 where b > 40)
+select * from cte as r1, cte as r2 where r1.c = r2.c;
+
+with cte(a,c) as
+(
+ select a, count(*) from t1 group by a having count(*) = 1
+ union
+ select a, count(*) from t1 group by a having count(*) = 3
+)
+select a, c from cte as r1 where a < 3
+union
+select a, c from cte as r2 where a > 4;
+
+drop table t1;
+
+--echo #
+--echo # MDEV-23886: Stored Function returning the result of a query
+--echo # that uses CTE over a table twice
+--echo #
+
+create table t1 (c1 int);
+insert into t1 values (1),(2),(6);
+
+create function f1() returns int return
+( with cte1 as (select c1 from t1)
+ select sum(c1) from
+ (select * from cte1 union all select * from cte1) dt
+);
+select f1();
+
+create function f2() returns int return
+( with cte1 as (select c1 from t1)
+ select sum(s.c1) from cte1 as s, cte1 as t where s.c1=t.c1
+);
+select f2();
+
+create function f3() returns int return
+( with cte1 as (select c1 from t1)
+ select
+ case
+ when exists(select 1 from cte1 where c1 between 1 and 2) then 1
+ when exists(select 1 from cte1 where c1 between 5 and 6) then 2
+ else 0
+ end
+);
+select f3();
+
+create view v1 as (select c1 from t1);
+
+create function f4() returns int return
+( select sum(c1) from
+ (select * from v1 union all select * from v1) dt
+);
+select f4();
+
+create function f5() returns int return
+( select sum(s.c1) from v1 as s, v1 as t where s.c1=t.c1
+);
+select f5();
+
+create view v2(s) as
+with cte1 as (select c1 from t1)
+select sum(c1) from (select * from cte1 union all select * from cte1) dt;
+
+create function f6() returns int return
+(select s from v2);
+select f6();
+
+create function f7() returns int return
+( select r.s from v2 as r, v2 as t where r.s=t.s
+);
+select f7();
+
+select f5() + f6();
+
+prepare stmt from "select f5() + f6();";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+drop function f1;
+drop function f2;
+drop function f3;
+drop function f4;
+drop function f5;
+drop function f6;
+drop function f7;
+
+drop view v1;
+drop view v2;
+
+create table t2 (a int, b int);
+
+insert into t2
+with cte1 as (select c1 from t1)
+select * from cte1 as s, cte1 as t where s.c1=t.c1 and s.c1 > 5;
+
+select * from t2;
+
+delimiter |;
+
+create procedure p1()
+begin
+insert into t2
+with cte1 as (select c1 from t1)
+select * from cte1 as s, cte1 as t where s.c1=t.c1 and s.c1 <= 2 and t.c1 >= 2;
+end |
+
+delimiter ;|
+
+call p1();
+select * from t2;
+
+drop procedure p1;
+
+--echo # checking CTE resolution for queries with hanging CTEs
+
+with
+cte1(a) as (select * from t1 where c1 <= 2),
+cte2(b) as (select * from cte1 where a >= 2),
+cte3 as (select * from cte1,cte2 where cte1.a < cte2.b)
+select * from cte3;
+
+select * from t2;
+
+with
+cte1(a) as (select * from t1 where c1 <= 2),
+cte2(b) as (select * from cte1 where a >= 2),
+cte3 as (select * from cte1,cte2 where cte1.a < cte2.b)
+select * from t2;
+
+--error ER_BAD_FIELD_ERROR
+with
+cte1(a) as (select * from t1 where c1 <= 2),
+cte2(b) as (select * from cte1 where c1 >= 2),
+cte3 as (select * from cte1,cte2 where cte1.a < cte2.b)
+select * from t2;
+
+--error ER_BAD_FIELD_ERROR
+with
+cte1(a) as (select * from t1 where c1 <= 2),
+cte2(b) as (select * from cte1 where a >= 2),
+cte3 as (select * from cte1,cte2 where cte1.a < cte2.c1)
+select * from t2;
+
+with
+cte1 as (select * from t1 where c1 <= 2),
+cte2(a,b) as (select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+select * from cte2;
+
+with
+cte1 as (select * from t1 where c1 <= 2),
+cte2(a,b) as (select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+select * from t2;
+
+--error ER_NON_UNIQ_ERROR
+with
+cte1 as (select * from t1 where c1 <= 2),
+cte2(a,b) as (select * from cte1 as s1, cte1 as s2 where s1.c1=c1)
+select * from t2;
+
+with cte3 as
+( with cte2(a,b) as
+ ( with cte1 as (select * from t1 where c1 <= 2)
+ select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+ select r1.a,r2.b from cte2 as r1, cte2 as r2)
+select * from cte3;
+
+with cte3 as
+( with cte2(a,b) as
+ ( with cte1 as (select * from t1 where c1 <= 2)
+ select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+ select r1.a,r2.b from cte2 as r1, cte2 as r2)
+select * from t2;
+
+--error ER_BAD_FIELD_ERROR
+with cte3 as
+( with cte2(a,b) as
+ ( with cte1 as (select * from t1 where c1 <= 2)
+ select * from cte1 as s1, cte1 as s2 where s1.c1=s2.c1)
+ select r1.c1,r2.c1 from cte2 as r1, cte2 as r2)
+select * from t2;
+
+delimiter |;
+
+create procedure p1()
+begin
+insert into t2
+with cte1 as (select c1 from t1)
+select * from t1 as s, t1 as t where s.c1=t.c1 and s.c1 <= 2 and t.c1 >= 2;
+end |
+
+delimiter ;|
+
+call p1();
+select * from t2;
+
+drop procedure p1;
+
+delimiter |;
+
+create procedure p1()
+begin
+insert into t2
+with cte1 as (select a from t1)
+select * from t1 as s, t1 as t where s.c1=t.c1 and s.c1 <= 2 and t.c1 >= 2;
+end |
+
+delimiter ;|
+
+--error ER_BAD_FIELD_ERROR
+call p1();
+
+drop procedure p1;
+
+drop table t1,t2;
+
++
++--echo #
++--echo # MDEV-20411: SP containing only one SELECT with WITH clause
++--echo #
++
++create procedure sp1 ()
++with cte as (select 1 as a) select * from cte;
++call sp1();
++call sp1();
++
++create table t1 (a int);
++insert into t1 values (3), (7), (1), (7), (1), (1), (3), (1), (5);
++
++create procedure sp2 ()
++with cte as (select * from t1) select * from cte;
++call sp2();
++call sp2();
++
++create procedure sp3 ()
++with cte as (select * from t1 group by a) select * from cte;
++call sp3();
++call sp3();
++
++drop procedure sp1;
++drop procedure sp2;
++drop procedure sp3;
++
++drop table t1;
++
+--echo # End of 10.2 tests
+
+--echo #
+--echo # MDEV-21673: several references to CTE that uses
+--echo # local variables / parameters of SP
+--echo #
+
+CREATE TABLE t1 (col1 int);
+CREATE TABLE t2 (col1 int, col2 date, col3 varchar(16), col4 int);
+CREATE TABLE t3 (col1 int, col2 date);
+CREATE TABLE t4 (col1 int, col2 date);
+INSERT INTO t1 VALUES (3), (7), (9), (1);
+INSERT INTO t2 VALUES
+ (3,'2019-09-01','AAA',2), (7,'2019-10-01','AAA',4), (3,'2019-10-01','AAA',8),
+ (1,'2019-10-01','BBB',9), (1,'2019-10-01','AAA',4), (1,'2019-10-01','AAA',6);
+INSERT INTO t3 VALUES
+ (4,'2018-10-01'), (6,'2018-10-01'), (4,'2017-10-01'), (7,'2017-10-01');
+INSERT INTO t4 VALUES
+ (5,'2018-10-01'), (8,'2017-10-01'), (4,'2017-10-01');
+
+DELIMITER |;
+
+CREATE OR REPLACE PROCEDURE SP1()
+BEGIN
+DECLARE p_date date;
+DECLARE p_var2 varchar(16);
+SET p_date='2019-10-01';
+SET p_var2='AAA';
+WITH cte_first(col) AS
+(
+ SELECT DISTINCT col4
+ FROM t1, t2
+ WHERE t2.col1 = t1.col1 AND t2.col2 = p_date AND t2.col3 = p_var2
+),
+cte2 AS
+(
+ SELECT DISTINCT col2
+ FROM t3
+ WHERE col1 IN ( SELECT col FROM cte_first )
+),
+cte3 AS (
+ SELECT distinct t4.col1
+ FROM cte2, t4
+ WHERE t4.col2 = cte2.col2 AND t4.col1 IN ( SELECT col FROM cte_first )
+)
+SELECT * FROM cte3;
+END|
+
+CREATE PROCEDURE SP2(IN d date)
+BEGIN
+DECLARE p_var2 varchar(16);
+SET p_var2='AAA';
+WITH cte_first(col) AS
+(
+ SELECT DISTINCT col4
+ FROM t1, t2
+ WHERE t2.col1 = t1.col1 AND t2.col2 = d AND t2.col3 = p_var2
+),
+cte2 AS
+(
+ SELECT DISTINCT col2
+ FROM t3
+ WHERE col1 IN ( SELECT col FROM cte_first )
+),
+cte3 AS (
+ SELECT distinct t4.col1
+ FROM cte2, t4
+ WHERE t4.col2 = cte2.col2 AND t4.col1 IN ( SELECT col FROM cte_first )
+)
+SELECT * FROM cte3;
+END|
+
+DELIMITER ;|
+
+
+CREATE TABLE t AS
+SELECT col4 AS col
+FROM t1, t2
+WHERE t2.col1 = t1.col1 AND t2.col2 ='2019-10-01' AND t2.col3 = 'AAA';
+SELECT * FROM t;
+
+CREATE TABLE tt AS
+SELECT col2
+FROM t3
+WHERE col1 IN ( SELECT col FROM t );
+SELECT * FROM tt;
+
+SELECT t4.col1
+FROM tt, t4
+WHERE t4.col2 = tt.col2 AND t4.col1 IN ( SELECT col FROM t );
+
+DROP TABLE t,tt;
+
+CALL SP1();
+CALL SP1();
+
+CALL SP2('2019-10-01');
+CALL SP2('2019-10-01');
+
+DROP PROCEDURE SP1;
+DROP PROCEDURE SP2;
+DROP TABLE t1,t2,t3,t4;
+
+--echo # End of 10.3 tests
diff --cc mysql-test/main/derived_cond_pushdown.result
index 6e84a83fd24,00000000000..b886db20eed
mode 100644,000000..100644
--- a/mysql-test/main/derived_cond_pushdown.result
+++ b/mysql-test/main/derived_cond_pushdown.result
@@@ -1,17387 -1,0 +1,17533 @@@
+set @@join_buffer_size=256*1024;
+create table t1 (a int, b int, c int);
+create table t2 (a int, b int, c int, d decimal);
+insert into t1 values
+(1,21,345), (1,33,7), (8,33,114), (1,21,500), (1,19,107), (5,14,787),
+(8,33,123), (9,10,211), (5,16,207), (1,33,988), (5,27,132), (1,21,104),
+(6,20,309), (6,20,315), (1,21,101), (8,33,404), (9,10,800), (1,21,123),
+(7,11,708), (6,20,214);
+insert into t2 values
+(2,3,207,207.0000), (1,21,909,12.0000), (7,13,312,406.0000),
+(8,64,248,107.0000), (6,20,315,279.3333), (1,19,203,107.0000),
+(8,80,800,314.0000), (3,12,231,190.0000), (6,23,303,909.0000);
+Warnings:
+Note 1265 Data truncated for column 'd' at row 5
+create table t1_double(a int, b double, c double);
+insert into t1_double values
+(1,23.4,14.3333), (1,12.5,18.9), (3,12.5,18.9),
+(4,33.4,14.3333), (4,14.3333,13.65), (5,17.89,7.22),
+(6,33.4,14.3), (10,33.4,13.65), (11,33.4,13.65);
+create table t2_double(a int, b double, c double);
+insert into t2_double values
+(1,22.4,14.3333), (1,12.5,18.9), (2,22.4,18.9),
+(4,33.4,14.3333), (5,22.4,13.65), (7,17.89,18.9),
+(6,33.4,14.3333), (10,31.4,13.65), (12,33.4,13.65);
+create table t1_char(a char, b char(8), c int);
+insert into t1_char values
+('a','Ivan',1), ('b','Vika',2), ('b','Inga',6), ('c','Vika',7),
+('b','Ivan',7), ('a','Alex',6), ('b','Inga',5), ('d','Ron',9),
+('d','Harry',2), ('d','Hermione',3), ('c','Ivan',3), ('c','Harry',4);
+create table t2_char(a char, b char(8), c int);
+insert into t2_char values
+('b','Ivan',1), ('c','Vinny',3), ('c','Inga',9), ('a','Vika',1),
+('c','Ivan',2), ('b','Ali',6), ('c','Inga',2), ('a','Ron',9),
+('d','Harry',1), ('b','Hermes',3), ('b','Ivan',11), ('b','Harry',4);
+create table t1_decimal (a decimal(3,1), b decimal(3,1), c int);
+insert into t1_decimal values
+(1,1,23),(2,2,11),(3,3,16),
+(1,1,12),(1,1,14),(2,3,15),
+(2,1,13),(2,3,11),(3,3,16);
+create table t2_decimal (a decimal(3,1), b decimal(3,1), c int);
+insert into t2_decimal values
+(2,1,13),(2,2,11),(3,3,16),
+(1,3,22),(1,3,14),(2,2,15),
+(2,1,43),(2,3,11),(2,3,16);
+create view v1 as select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707;
+create view v2 as select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707;
+create view v3 as select a, b, min(c) as min_c from t1
+where t1.a<10 group by a,b having min_c > 109;
+create view v4 as
+select a, b, min(max_c) as min_c from v1
+where (v1.a<15) group by a,b;
+create view v_union as
+select a, b, min(c) as c from t1
+where t1.a<10 group by a,b having c > 109
+union
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300;
+create view v2_union as
+select a, b, min(c) as c from t1
+where t1.a<10 group by a,b having c > 109
+union
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300
+union
+select a, b, avg(c) as c from t1
+where t1.c>300 group by a,b having c < 707;
+create view v3_union as
+select a, b, (a+1) as c from t1
+where t1.a<10
+union
+select a, b, c from t1
+where t1.b>10 and t1.c>100;
+create view v4_union as
+select a, b, max(c)-100 as c from t1
+where t1.a<10 group by a,b having c > 109
+union
+select a, b, (c+100) as c from t1
+where t1.b>10;
+create view v_double as
+select a, avg(a/4) as avg_a, b, c from t1_double
+where (b>12.2) group by b,c having (avg_a<22.333);
+create view v_char as
+select a, b, max(c) as max_c from t1_char
+group by a,b having max_c < 9;
+create view v_decimal as
+select a, b, avg(c) as avg_c from t1_decimal
+group by a,b having (avg_c>12);
+# conjunctive subformula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.max_c>214) and (t2.a>v1.a);
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+6 20 315 279.3333 7 13 312 406
+6 20 315 279.3333 8 64 248 107
+6 20 315 279.3333 8 80 800 314
+select * from v1,t2 where (v1.max_c>214) and (t2.a>v1.a);
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+6 20 315 279.3333 7 13 312 406
+6 20 315 279.3333 8 64 248 107
+6 20 315 279.3333 8 80 800 314
+explain select * from v1,t2 where (v1.max_c>214) and (t2.a>v1.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where (v1.max_c>214) and (t2.a>v1.a);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 214"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t2.a > v1.a",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 214",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+8 33 404 213.6667 8 64 248 107
+6 20 315 279.3333 6 20 315 279
+1 21 500 234.6000 1 19 203 107
+8 33 404 213.6667 8 80 800 314
+6 20 315 279.3333 6 23 303 909
+select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+8 33 404 213.6667 8 64 248 107
+6 20 315 279.3333 6 20 315 279
+1 21 500 234.6000 1 19 203 107
+8 33 404 213.6667 8 80 800 314
+6 20 315 279.3333 6 23 303 909
+explain select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 300",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted or formula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+5 27 132 132.0000 2 3 207 207
+5 27 132 132.0000 1 21 909 12
+5 27 132 132.0000 1 19 203 107
+5 27 132 132.0000 3 12 231 190
+select * from v1,t2 where
+((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+5 27 132 132.0000 2 3 207 207
+5 27 132 132.0000 1 21 909 12
+5 27 132 132.0000 1 19 203 107
+5 27 132 132.0000 3 12 231 190
+explain select * from v1,t2 where
+((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 400 or v1.max_c < 135"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.max_c > 400 and t2.a > v1.a or v1.max_c < 135 and t2.a < v1.a",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (max_c > 400 or max_c < 135)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.max_c>300) and (v1.avg_c>t2.d) and (v1.b=t2.b)) or
+((v1.max_c<135) and (v1.max_c<t2.c) and (v1.a=t2.a));
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 1 21 909 12
+6 20 315 279.3333 6 20 315 279
+select * from v1,t2 where
+((v1.max_c>300) and (v1.avg_c>t2.d) and (v1.b=t2.b)) or
+((v1.max_c<135) and (v1.max_c<t2.c) and (v1.a=t2.a));
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 1 21 909 12
+6 20 315 279.3333 6 20 315 279
+explain select * from v1,t2 where
+((v1.max_c>300) and (v1.avg_c>t2.d) and (v1.b=t2.b)) or
+((v1.max_c<135) and (v1.max_c<t2.c) and (v1.a=t2.a));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+((v1.max_c>300) and (v1.avg_c>t2.d) and (v1.b=t2.b)) or
+((v1.max_c<135) and (v1.max_c<t2.c) and (v1.a=t2.a));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 300 or v1.max_c < 135"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.b = t2.b and v1.max_c > 300 and v1.avg_c > t2.d or v1.a = t2.a and v1.max_c < 135 and v1.max_c < t2.c",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (max_c > 300 or max_c < 135)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformula : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a>6) and (t2.b>v1.b);
+a b max_c avg_c a b c d
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 8 80 800 314
+select * from v1,t2 where (v1.a>6) and (t2.b>v1.b);
+a b max_c avg_c a b c d
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 8 80 800 314
+explain select * from v1,t2 where (v1.a>6) and (t2.b>v1.b);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where (v1.a>6) and (t2.b>v1.b);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a > 6"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t2.b > v1.b",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 6"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v2,t2 where (v2.b>25) and (t2.a<v2.a);
+a b max_c avg_c a b c d
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+select * from v2,t2 where (v2.b>25) and (t2.a<v2.a);
+a b max_c avg_c a b c d
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+explain select * from v2,t2 where (v2.b>25) and (t2.a<v2.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v2,t2 where (v2.b>25) and (t2.a<v2.a);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v2.b > 25"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t2.a < v2.a",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and t1.b > 25"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted or formula : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.a>7) and (t2.c<v1.max_c)) or ((v1.a<2) and (t2.b<v1.b));
+a b max_c avg_c a b c d
+1 19 107 107.0000 2 3 207 207
+1 19 107 107.0000 7 13 312 406
+1 19 107 107.0000 3 12 231 190
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 1 19 203 107
+1 21 500 234.6000 3 12 231 190
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+select * from v1,t2 where
+((v1.a>7) and (t2.c<v1.max_c)) or ((v1.a<2) and (t2.b<v1.b));
+a b max_c avg_c a b c d
+1 19 107 107.0000 2 3 207 207
+1 19 107 107.0000 7 13 312 406
+1 19 107 107.0000 3 12 231 190
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 1 19 203 107
+1 21 500 234.6000 3 12 231 190
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+explain select * from v1,t2 where
+((v1.a>7) and (t2.c<v1.max_c)) or ((v1.a<2) and (t2.b<v1.b));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+((v1.a>7) and (t2.c<v1.max_c)) or ((v1.a<2) and (t2.b<v1.b));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a > 7 or v1.a < 2"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a > 7 and t2.c < v1.max_c or v1.a < 2 and t2.b < v1.b",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 7 or t1.a < 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v2,t2 where
+((v2.a>7) and (t2.c<v2.max_c)) or ((v2.a>5) and (t2.b<v2.b));
+a b max_c avg_c a b c d
+6 20 315 279.3333 2 3 207 207
+6 20 315 279.3333 7 13 312 406
+6 20 315 279.3333 1 19 203 107
+6 20 315 279.3333 3 12 231 190
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+select * from v2,t2 where
+((v2.a>7) and (t2.c<v2.max_c)) or ((v2.a>5) and (t2.b<v2.b));
+a b max_c avg_c a b c d
+6 20 315 279.3333 2 3 207 207
+6 20 315 279.3333 7 13 312 406
+6 20 315 279.3333 1 19 203 107
+6 20 315 279.3333 3 12 231 190
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+explain select * from v2,t2 where
+((v2.a>7) and (t2.c<v2.max_c)) or ((v2.a>5) and (t2.b<v2.b));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v2,t2 where
+((v2.a>7) and (t2.c<v2.max_c)) or ((v2.a>5) and (t2.b<v2.b));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v2.a > 7 or v2.a > 5"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v2.a > 7 and t2.c < v2.max_c or v2.a > 5 and t2.b < v2.b",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and (t1.a > 7 or t1.a > 5)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.a>4) and (v1.b>t2.b) and (v1.max_c=t2.d)) or
+((v1.a<2) and (v1.max_c<t2.c) and (v1.max_c=t2.d));
+a b max_c avg_c a b c d
+1 19 107 107.0000 8 64 248 107
+1 19 107 107.0000 1 19 203 107
+5 16 207 207.0000 2 3 207 207
+select * from v1,t2 where
+((v1.a>4) and (v1.b>t2.b) and (v1.max_c=t2.d)) or
+((v1.a<2) and (v1.max_c<t2.c) and (v1.max_c=t2.d));
+a b max_c avg_c a b c d
+1 19 107 107.0000 8 64 248 107
+1 19 107 107.0000 1 19 203 107
+5 16 207 207.0000 2 3 207 207
+explain select * from v1,t2 where
+((v1.a>4) and (v1.b>t2.b) and (v1.max_c=t2.d)) or
+((v1.a<2) and (v1.max_c<t2.c) and (v1.max_c=t2.d));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+((v1.a>4) and (v1.b>t2.b) and (v1.max_c=t2.d)) or
+((v1.a<2) and (v1.max_c<t2.c) and (v1.max_c=t2.d));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a > 4 or v1.a < 2"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a > 4 and v1.b > t2.b and v1.max_c = t2.d or v1.a < 2 and v1.max_c < t2.c and v1.max_c = t2.d",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 4 or t1.a < 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformulas : pushing into HAVING and WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a<2) and (v1.max_c>400) and (t2.b>v1.b);
+a b max_c avg_c a b c d
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 6 23 303 909
+select * from v1,t2 where (v1.a<2) and (v1.max_c>400) and (t2.b>v1.b);
+a b max_c avg_c a b c d
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 6 23 303 909
+explain select * from v1,t2 where (v1.a<2) and (v1.max_c>400) and (t2.b>v1.b);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where (v1.a<2) and (v1.max_c>400) and (t2.b>v1.b);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 2 and v1.max_c > 400"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t2.b > v1.b",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 400",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_double as v,t2_double as t where
+(v.a=t.a) and (v.avg_a>0.45) and (v.b>10);
+a avg_a b c a b c
+1 0.50000000 12.5 18.9 1 22.4 14.3333
+1 0.50000000 12.5 18.9 1 12.5 18.9
+4 1.00000000 33.4 14.3333 4 33.4 14.3333
+4 1.00000000 14.3333 13.65 4 33.4 14.3333
+5 1.25000000 17.89 7.22 5 22.4 13.65
+6 1.50000000 33.4 14.3 6 33.4 14.3333
+10 2.62500000 33.4 13.65 10 31.4 13.65
+select * from v_double as v,t2_double as t where
+(v.a=t.a) and (v.avg_a>0.45) and (v.b>10);
+a avg_a b c a b c
+1 0.50000000 12.5 18.9 1 22.4 14.3333
+1 0.50000000 12.5 18.9 1 12.5 18.9
+4 1.00000000 33.4 14.3333 4 33.4 14.3333
+4 1.00000000 14.3333 13.65 4 33.4 14.3333
+5 1.25000000 17.89 7.22 5 22.4 13.65
+6 1.50000000 33.4 14.3 6 33.4 14.3333
+10 2.62500000 33.4 13.65 10 31.4 13.65
+explain select * from v_double as v,t2_double as t where
+(v.a=t.a) and (v.avg_a>0.45) and (v.b>10);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t.a 2 Using where
+2 DERIVED t1_double ALL NULL NULL NULL NULL 9 Using where; Using temporary; Using filesort
+explain format=json select * from v_double as v,t2_double as t where
+(v.a=t.a) and (v.avg_a>0.45) and (v.b>10);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v.avg_a > 0.45 and v.b > 10",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "avg_a < 22.333 and avg_a > 0.45",
+ "filesort": {
+ "sort_key": "t1_double.b, t1_double.c",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_double",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t1_double.b > 12.2 and t1_double.b > 10"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_decimal as v,t2_decimal as t where
+(v.a=t.a) and (v.avg_c>15) and (v.b>1);
+a b avg_c a b c
+3.0 3.0 16.0000 3.0 3.0 16
+select * from v_decimal as v,t2_decimal as t where
+(v.a=t.a) and (v.avg_c>15) and (v.b>1);
+a b avg_c a b c
+3.0 3.0 16.0000 3.0 3.0 16
+explain select * from v_decimal as v,t2_decimal as t where
+(v.a=t.a) and (v.avg_c>15) and (v.b>1);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 3 test.t.a 2 Using where
+2 DERIVED t1_decimal ALL NULL NULL NULL NULL 9 Using where; Using temporary; Using filesort
+explain format=json select * from v_decimal as v,t2_decimal as t where
+(v.a=t.a) and (v.avg_c>15) and (v.b>1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "3",
+ "used_key_parts": ["a"],
+ "ref": ["test.t.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v.avg_c > 15 and v.b > 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "avg_c > 12 and avg_c > 15",
+ "filesort": {
+ "sort_key": "t1_decimal.a, t1_decimal.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_decimal",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t1_decimal.b > 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted or formula : pushing into HAVING and WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.a>7) and (v1.max_c>300) and (t2.c<v1.max_c)) or
+((v1.a<4) and (v1.max_c<500) and (t2.b<v1.b));
+a b max_c avg_c a b c d
+1 19 107 107.0000 2 3 207 207
+1 19 107 107.0000 7 13 312 406
+1 19 107 107.0000 3 12 231 190
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+select * from v1,t2 where
+((v1.a>7) and (v1.max_c>300) and (t2.c<v1.max_c)) or
+((v1.a<4) and (v1.max_c<500) and (t2.b<v1.b));
+a b max_c avg_c a b c d
+1 19 107 107.0000 2 3 207 207
+1 19 107 107.0000 7 13 312 406
+1 19 107 107.0000 3 12 231 190
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+explain select * from v1,t2 where
+((v1.a>7) and (v1.max_c>300) and (t2.c<v1.max_c)) or
+((v1.a<4) and (v1.max_c<500) and (t2.b<v1.b));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+((v1.a>7) and (v1.max_c>300) and (t2.c<v1.max_c)) or
+((v1.a<4) and (v1.max_c<500) and (t2.b<v1.b));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a > 7 and v1.max_c > 300 or v1.a < 4 and v1.max_c < 500"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a > 7 and v1.max_c > 300 and t2.c < v1.max_c or v1.a < 4 and v1.max_c < 500 and t2.b < v1.b",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (t1.a > 7 and max_c > 300 or t1.a < 4 and max_c < 500)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 7 or t1.a < 4"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where ((v1.a<2) and (v1.max_c>120)) or (v1.a>7);
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 1 19 203 107
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 8 80 800 314
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+select * from v1,t2 where ((v1.a<2) and (v1.max_c>120)) or (v1.a>7);
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 1 19 203 107
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 8 80 800 314
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+explain select * from v1,t2 where ((v1.a<2) and (v1.max_c>120)) or (v1.a>7);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where ((v1.a<2) and (v1.max_c>120)) or (v1.a>7);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 2 and v1.max_c > 120 or v1.a > 7"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a < 2 and v1.max_c > 120 or v1.a > 7",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (t1.a < 2 and max_c > 120 or t1.a > 7)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 2 or t1.a > 7"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted or formulas : pushing into WHERE and HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.a<2) and (v1.max_c>120) and (v1.b=t2.b)) or (v1.a>7);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 8 80 800 314
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+select * from v1,t2 where
+((v1.a<2) and (v1.max_c>120) and (v1.b=t2.b)) or (v1.a>7);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 8 80 800 314
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+explain select * from v1,t2 where
+((v1.a<2) and (v1.max_c>120) and (v1.b=t2.b)) or (v1.a>7);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+((v1.a<2) and (v1.max_c>120) and (v1.b=t2.b)) or (v1.a>7);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 2 and v1.max_c > 120 or v1.a > 7"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.b = t2.b and v1.a < 2 and v1.max_c > 120 or v1.a > 7",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (t1.a < 2 and max_c > 120 or t1.a > 7)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 2 or t1.a > 7"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.a<2) and (v1.max_c<200) and (t2.c>v1.max_c) and (v1.max_c=t2.d)) or
+((v1.a>4) and (v1.max_c<500) and (t2.b<v1.b) and (v1.max_c=t2.c));
+a b max_c avg_c a b c d
+1 19 107 107.0000 8 64 248 107
+1 19 107 107.0000 1 19 203 107
+5 16 207 207.0000 2 3 207 207
+select * from v1,t2 where
+((v1.a<2) and (v1.max_c<200) and (t2.c>v1.max_c) and (v1.max_c=t2.d)) or
+((v1.a>4) and (v1.max_c<500) and (t2.b<v1.b) and (v1.max_c=t2.c));
+a b max_c avg_c a b c d
+1 19 107 107.0000 8 64 248 107
+1 19 107 107.0000 1 19 203 107
+5 16 207 207.0000 2 3 207 207
+explain select * from v1,t2 where
+((v1.a<2) and (v1.max_c<200) and (t2.c>v1.max_c) and (v1.max_c=t2.d)) or
+((v1.a>4) and (v1.max_c<500) and (t2.b<v1.b) and (v1.max_c=t2.c));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+((v1.a<2) and (v1.max_c<200) and (t2.c>v1.max_c) and (v1.max_c=t2.d)) or
+((v1.a>4) and (v1.max_c<500) and (t2.b<v1.b) and (v1.max_c=t2.c));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 2 and v1.max_c < 200 or v1.a > 4"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a < 2 and v1.max_c < 200 and t2.c > v1.max_c and v1.max_c = t2.d or v1.max_c = t2.c and v1.a > 4 and t2.c < 500 and t2.b < v1.b",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (t1.a < 2 and max_c < 200 or t1.a > 4 and max_c < 500)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 2 or t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# prepare of a query containing extracted or formula
+prepare stmt from "select * from v1,t2 where
+ ((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));";
+execute stmt;
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+5 27 132 132.0000 2 3 207 207
+5 27 132 132.0000 1 21 909 12
+5 27 132 132.0000 1 19 203 107
+5 27 132 132.0000 3 12 231 190
+execute stmt;
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+5 27 132 132.0000 2 3 207 207
+5 27 132 132.0000 1 21 909 12
+5 27 132 132.0000 1 19 203 107
+5 27 132 132.0000 3 12 231 190
+deallocate prepare stmt;
+prepare stmt from
+"explain format=json select * from v1,t2 where
+ ((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));";
+execute stmt;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 400 or v1.max_c < 135"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.max_c > 400 and t2.a > v1.a or v1.max_c < 135 and t2.a < v1.a",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (max_c > 400 or max_c < 135)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+execute stmt;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 400 or v1.max_c < 135"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.max_c > 400 and t2.a > v1.a or v1.max_c < 135 and t2.a < v1.a",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (max_c > 400 or max_c < 135)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+deallocate prepare stmt;
+# conjunctive subformula : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (t2.a=v1.a) and (v1.b=t2.b) and (v1.a=1);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+select * from v1,t2 where (t2.a=v1.a) and (v1.b=t2.b) and (v1.a=1);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+explain select * from v1,t2 where (t2.a=v1.a) and (v1.b=t2.b) and (v1.a=1);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.b 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where (t2.a=v1.a) and (v1.b=t2.b) and (v1.a=1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 1 and t2.b is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t2.b"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.a = 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=5) and (v1.max_c=t2.d);
+a b max_c avg_c a b c d
+5 16 207 207.0000 2 3 207 207
+select * from v1,t2 where (v1.a=5) and (v1.max_c=t2.d);
+a b max_c avg_c a b c d
+5 16 207 207.0000 2 3 207 207
+explain select * from v1,t2 where (v1.a=5) and (v1.max_c=t2.d);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.d 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where (v1.a=5) and (v1.max_c=t2.d);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.d is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["max_c"],
+ "ref": ["test.t2.d"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.a = 5 and v1.max_c = t2.d",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformula : pushing into WHERE using equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (t2.a<5) and (v1.a=t2.a);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+1 19 107 107.0000 1 21 909 12
+1 21 500 234.6000 1 19 203 107
+1 19 107 107.0000 1 19 203 107
+select * from v1,t2 where (t2.a<5) and (v1.a=t2.a);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+1 19 107 107.0000 1 21 909 12
+1 21 500 234.6000 1 19 203 107
+1 19 107 107.0000 1 19 203 107
+explain select * from v1,t2 where (t2.a<5) and (v1.a=t2.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where (t2.a<5) and (v1.a=t2.a);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 5 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a);
+a b max_c avg_c a b c d
+select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a);
+a b max_c avg_c a b c d
+explain select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 10 test.t2.a,test.t2.a 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "10",
+ "used_key_parts": ["a", "b"],
+ "ref": ["test.t2.a", "test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b = t1.a"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformula : pushing into HAVING using equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (t2.c>150) and (v1.max_c=t2.c);
+a b max_c avg_c a b c d
+5 16 207 207.0000 2 3 207 207
+6 20 315 279.3333 6 20 315 279
+select * from v1,t2 where (t2.c>150) and (v1.max_c=t2.c);
+a b max_c avg_c a b c d
+5 16 207 207.0000 2 3 207 207
+6 20 315 279.3333 6 20 315 279
+explain select * from v1,t2 where (t2.c>150) and (v1.max_c=t2.c);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where (t2.c>150) and (v1.max_c=t2.c);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.c > 150 and t2.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["max_c"],
+ "ref": ["test.t2.c"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 150",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted and formula : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a) and (v1.a=3);
+a b max_c avg_c a b c d
+select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a) and (v1.a=3);
+a b max_c avg_c a b c d
+explain select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a) and (v1.a=3);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where
+explain format=json select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a) and (v1.a=3);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 3"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a = 3 and v1.b = 3"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 3 and t1.b = 3"
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=1) and (v1.b=21) and (t2.a=2);
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+select * from v1,t2 where (v1.a=1) and (v1.b=21) and (t2.a=2);
+a b max_c avg_c a b c d
+1 21 500 234.6000 2 3 207 207
+explain select * from v1,t2 where (v1.a=1) and (v1.b=21) and (t2.a=2);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where
+explain format=json select * from v1,t2 where (v1.a=1) and (v1.b=21) and (t2.a=2);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 2"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a = 1 and v1.b = 21"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1 and t1.b = 21"
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_char as v,t2_char as t where
+(v.a='c') and (v.b<'Hermes') and ((v.b=t.b) or (v.max_c>20));
+a b max_c a b c
+c Harry 4 d Harry 1
+c Harry 4 b Harry 4
+select * from v_char as v,t2_char as t where
+(v.a='c') and (v.b<'Hermes') and ((v.b=t.b) or (v.max_c>20));
+a b max_c a b c
+c Harry 4 d Harry 1
+c Harry 4 b Harry 4
+explain select * from v_char as v,t2_char as t where
+(v.a='c') and (v.b<'Hermes') and ((v.b=t.b) or (v.max_c>20));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 12 Using where
+1 PRIMARY t ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1_char ALL NULL NULL NULL NULL 12 Using where; Using temporary; Using filesort
+explain format=json select * from v_char as v,t2_char as t where
+(v.a='c') and (v.b<'Hermes') and ((v.b=t.b) or (v.max_c>20));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "attached_condition": "v.a = 'c' and v.b < 'Hermes'",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 9",
+ "filesort": {
+ "sort_key": "t1_char.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_char",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "attached_condition": "t1_char.a = 'c' and t1_char.b < 'Hermes'"
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t.b = v.b or v.max_c > 20"
+ }
+ }
+}
+# extracted and formula : pushing into WHERE using equalities
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_decimal as v,t2_decimal as t where
+(v.a=v.b) and (v.b=t.b) and ((t.b>1) or (v.a=1));
+a b avg_c a b c
+1.0 1.0 16.3333 2.0 1.0 13
+3.0 3.0 16.0000 3.0 3.0 16
+3.0 3.0 16.0000 1.0 3.0 22
+3.0 3.0 16.0000 1.0 3.0 14
+1.0 1.0 16.3333 2.0 1.0 43
+3.0 3.0 16.0000 2.0 3.0 11
+3.0 3.0 16.0000 2.0 3.0 16
+select * from v_decimal as v,t2_decimal as t where
+(v.a=v.b) and (v.b=t.b) and ((t.b>1) or (v.a=1));
+a b avg_c a b c
+1.0 1.0 16.3333 2.0 1.0 13
+3.0 3.0 16.0000 3.0 3.0 16
+3.0 3.0 16.0000 1.0 3.0 22
+3.0 3.0 16.0000 1.0 3.0 14
+1.0 1.0 16.3333 2.0 1.0 43
+3.0 3.0 16.0000 2.0 3.0 11
+3.0 3.0 16.0000 2.0 3.0 16
+explain select * from v_decimal as v,t2_decimal as t where
+(v.a=v.b) and (v.b=t.b) and ((t.b>1) or (v.a=1));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 6 test.t.b,test.t.b 2
+2 DERIVED t1_decimal ALL NULL NULL NULL NULL 9 Using where; Using temporary; Using filesort
+explain format=json select * from v_decimal as v,t2_decimal as t where
+(v.a=v.b) and (v.b=t.b) and ((t.b>1) or (v.a=1));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "(t.b > 1 or t.b = 1) and t.b is not null and t.b is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "6",
+ "used_key_parts": ["a", "b"],
+ "ref": ["test.t.b", "test.t.b"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "avg_c > 12",
+ "filesort": {
+ "sort_key": "t1_decimal.a, t1_decimal.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_decimal",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t1_decimal.b = t1_decimal.a and (t1_decimal.a > 1 or t1_decimal.a = 1)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted or formula : pushing into HAVING using equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2
+where ((t2.a<4) and (v1.a=t2.a)) or ((t2.c>150) and (v1.max_c=t2.c));
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 1 19 203 107
+5 16 207 207.0000 2 3 207 207
+6 20 315 279.3333 6 20 315 279
+select * from v1,t2
+where ((t2.a<4) and (v1.a=t2.a)) or ((t2.c>150) and (v1.max_c=t2.c));
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 1 19 203 107
+5 16 207 207.0000 2 3 207 207
+6 20 315 279.3333 6 20 315 279
+explain select * from v1,t2
+where ((t2.a<4) and (v1.a=t2.a)) or ((t2.c>150) and (v1.max_c=t2.c));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2
+where ((t2.a<4) and (v1.a=t2.a)) or ((t2.c>150) and (v1.max_c=t2.c));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 4 or t2.c > 150"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a = t2.a and t2.a < 4 or v1.max_c = t2.c and t2.c > 150",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (t1.a < 4 or max_c > 150)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformulas : pushing into WHERE and HAVING using equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2
+where ((t2.a>5) and (v1.a=t2.a)) and ((t2.c>250) and (v1.max_c=t2.c));
+a b max_c avg_c a b c d
+6 20 315 279.3333 6 20 315 279
+select * from v1,t2
+where ((t2.a>5) and (v1.a=t2.a)) and ((t2.c>250) and (v1.max_c=t2.c));
+a b max_c avg_c a b c d
+6 20 315 279.3333 6 20 315 279
+explain select * from v1,t2
+where ((t2.a>5) and (v1.a=t2.a)) and ((t2.c>250) and (v1.max_c=t2.c));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 10 test.t2.a,test.t2.c 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2
+where ((t2.a>5) and (v1.a=t2.a)) and ((t2.c>250) and (v1.max_c=t2.c));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 5 and t2.c > 250 and t2.a is not null and t2.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "10",
+ "used_key_parts": ["a", "max_c"],
+ "ref": ["test.t2.a", "test.t2.c"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 250",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformulas : pushing into WHERE and HAVING
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where (v1.a=8) and (v1.a=t2.a) and (v1.max_c=404);
+a b max_c avg_c a b c d
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 8 80 800 314
+select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where (v1.a=8) and (v1.a=t2.a) and (v1.max_c=404);
+a b max_c avg_c a b c d
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 8 80 800 314
+explain select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where (v1.a=8) and (v1.a=t2.a) and (v1.max_c=404);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where (v1.a=8) and (v1.a=t2.a) and (v1.max_c=404);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 8"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a = 8 and v1.max_c = 404"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c = 404",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 8"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformulas : pushing into WHERE and HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+(v1.a>3) and (v1.max_c>200) and (t2.b<v1.b) and (t2.d=v1.max_c);
+a b max_c avg_c a b c d
+5 16 207 207.0000 2 3 207 207
+select * from v1,t2 where
+(v1.a>3) and (v1.max_c>200) and (t2.b<v1.b) and (t2.d=v1.max_c);
+a b max_c avg_c a b c d
+5 16 207 207.0000 2 3 207 207
+explain select * from v1,t2 where
+(v1.a>3) and (v1.max_c>200) and (t2.b<v1.b) and (t2.d=v1.max_c);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.d 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+(v1.a>3) and (v1.max_c>200) and (t2.b<v1.b) and (t2.d=v1.max_c);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.d is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["max_c"],
+ "ref": ["test.t2.d"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.a > 3 and v1.max_c > 200 and t2.b < v1.b and t2.d = v1.max_c",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 3"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformula : pushing into WHERE
+# extracted or formula : pushing into HAVING using equalities
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_double as v,t2_double as t where
+(v.b=v.c) and (v.c=t.c) and ((t.c>10) or (v.a=1));
+a avg_a b c a b c
+select * from v_double as v,t2_double as t where
+(v.b=v.c) and (v.c=t.c) and ((t.c>10) or (v.a=1));
+a avg_a b c a b c
+explain select * from v_double as v,t2_double as t where
+(v.b=v.c) and (v.c=t.c) and ((t.c>10) or (v.a=1));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 18 test.t.c,test.t.c 2 Using where
+2 DERIVED t1_double ALL NULL NULL NULL NULL 9 Using where; Using temporary; Using filesort
+explain format=json select * from v_double as v,t2_double as t where
+(v.b=v.c) and (v.c=t.c) and ((t.c>10) or (v.a=1));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t.c is not null and t.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "18",
+ "used_key_parts": ["b", "c"],
+ "ref": ["test.t.c", "test.t.c"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t.c > 10 or v.a = 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "avg_a < 22.333 and (t1_double.b > 10 or t1_double.a = 1)",
+ "filesort": {
+ "sort_key": "t1_double.b, t1_double.c",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_double",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t1_double.c = t1_double.b and t1_double.b > 12.2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# conjunctive subformula : pushing into WHERE
+# extracted or formula : pushing into HAVING using equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_double as v,t2_double as t where
+(((v.a>0.2) or (v.b<17)) or (t.c>17)) and (t.c=v.c) and (v.c>18);
+a avg_a b c a b c
+1 0.50000000 12.5 18.9 1 12.5 18.9
+1 0.50000000 12.5 18.9 2 22.4 18.9
+1 0.50000000 12.5 18.9 7 17.89 18.9
+select * from v_double as v,t2_double as t where
+(((v.a>0.2) or (v.b<17)) or (t.c>17)) and (t.c=v.c) and (v.c>18);
+a avg_a b c a b c
+1 0.50000000 12.5 18.9 1 12.5 18.9
+1 0.50000000 12.5 18.9 2 22.4 18.9
+1 0.50000000 12.5 18.9 7 17.89 18.9
+explain select * from v_double as v,t2_double as t where
+(((v.a>0.2) or (v.b<17)) or (t.c>17)) and (t.c=v.c) and (v.c>18);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 9 test.t.c 2 Using where
+2 DERIVED t1_double ALL NULL NULL NULL NULL 9 Using where; Using temporary; Using filesort
+explain format=json select * from v_double as v,t2_double as t where
+(((v.a>0.2) or (v.b<17)) or (t.c>17)) and (t.c=v.c) and (v.c>18);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t.c > 18 and t.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "9",
+ "used_key_parts": ["c"],
+ "ref": ["test.t.c"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v.a > 0.2 or v.b < 17 or t.c > 17",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "avg_a < 22.333 and (t1_double.a > 0.2 or t1_double.b < 17 or t1_double.c > 17)",
+ "filesort": {
+ "sort_key": "t1_double.b, t1_double.c",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_double",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t1_double.b > 12.2 and t1_double.c > 18"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted or formula : pushing into WHERE
+# conjunctive subformula : pushing into HAVING
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_decimal as v,t2_decimal as t where
+(((v.a>4) or (v.a=2)) or (v.b>3)) and (v.avg_c=13);
+a b avg_c a b c
+2.0 1.0 13.0000 2.0 1.0 13
+2.0 3.0 13.0000 2.0 1.0 13
+2.0 1.0 13.0000 2.0 2.0 11
+2.0 3.0 13.0000 2.0 2.0 11
+2.0 1.0 13.0000 3.0 3.0 16
+2.0 3.0 13.0000 3.0 3.0 16
+2.0 1.0 13.0000 1.0 3.0 22
+2.0 3.0 13.0000 1.0 3.0 22
+2.0 1.0 13.0000 1.0 3.0 14
+2.0 3.0 13.0000 1.0 3.0 14
+2.0 1.0 13.0000 2.0 2.0 15
+2.0 3.0 13.0000 2.0 2.0 15
+2.0 1.0 13.0000 2.0 1.0 43
+2.0 3.0 13.0000 2.0 1.0 43
+2.0 1.0 13.0000 2.0 3.0 11
+2.0 3.0 13.0000 2.0 3.0 11
+2.0 1.0 13.0000 2.0 3.0 16
+2.0 3.0 13.0000 2.0 3.0 16
+select * from v_decimal as v,t2_decimal as t where
+(((v.a>4) or (v.a=2)) or (v.b>3)) and (v.avg_c=13);
+a b avg_c a b c
+2.0 1.0 13.0000 2.0 1.0 13
+2.0 3.0 13.0000 2.0 1.0 13
+2.0 1.0 13.0000 2.0 2.0 11
+2.0 3.0 13.0000 2.0 2.0 11
+2.0 1.0 13.0000 3.0 3.0 16
+2.0 3.0 13.0000 3.0 3.0 16
+2.0 1.0 13.0000 1.0 3.0 22
+2.0 3.0 13.0000 1.0 3.0 22
+2.0 1.0 13.0000 1.0 3.0 14
+2.0 3.0 13.0000 1.0 3.0 14
+2.0 1.0 13.0000 2.0 2.0 15
+2.0 3.0 13.0000 2.0 2.0 15
+2.0 1.0 13.0000 2.0 1.0 43
+2.0 3.0 13.0000 2.0 1.0 43
+2.0 1.0 13.0000 2.0 3.0 11
+2.0 3.0 13.0000 2.0 3.0 11
+2.0 1.0 13.0000 2.0 3.0 16
+2.0 3.0 13.0000 2.0 3.0 16
+explain select * from v_decimal as v,t2_decimal as t where
+(((v.a>4) or (v.a=2)) or (v.b>3)) and (v.avg_c=13);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY t ALL NULL NULL NULL NULL 9 Using join buffer (flat, BNL join)
+2 DERIVED t1_decimal ALL NULL NULL NULL NULL 9 Using where; Using temporary; Using filesort
+explain format=json select * from v_decimal as v,t2_decimal as t where
+(((v.a>4) or (v.a=2)) or (v.b>3)) and (v.avg_c=13);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "(v.a > 4 or v.a = 2 or v.b > 3) and v.avg_c = 13",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "avg_c > 12 and avg_c = 13",
+ "filesort": {
+ "sort_key": "t1_decimal.a, t1_decimal.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_decimal",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t1_decimal.a > 4 or t1_decimal.a = 2 or t1_decimal.b > 3"
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL"
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.a=v1.b);
+a b max_c avg_c a b c d
+select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.a=v1.b);
+a b max_c avg_c a b c d
+explain select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.a=v1.b);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 10 test.t2.a,test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.a=v1.b);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "10",
+ "used_key_parts": ["a", "b"],
+ "ref": ["test.t2.a", "test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 300",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b = t1.a and t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# nothing to push
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (t2.a<2) and (t2.c>900);
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 21 500 234.6000 1 21 909 12
+5 16 207 207.0000 1 21 909 12
+5 27 132 132.0000 1 21 909 12
+6 20 315 279.3333 1 21 909 12
+8 33 404 213.6667 1 21 909 12
+select * from v1,t2 where (t2.a<2) and (t2.c>900);
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 21 500 234.6000 1 21 909 12
+5 16 207 207.0000 1 21 909 12
+5 27 132 132.0000 1 21 909 12
+6 20 315 279.3333 1 21 909 12
+8 33 404 213.6667 1 21 909 12
+explain select * from v1,t2 where (t2.a<2) and (t2.c>900);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where (t2.a<2) and (t2.c>900);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 2 and t2.c > 900"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.b=t2.b);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+6 20 315 279.3333 6 20 315 279
+1 19 107 107.0000 1 19 203 107
+select * from v1,t2 where (v1.a=t2.a) and (v1.b=t2.b);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+6 20 315 279.3333 6 20 315 279
+1 19 107 107.0000 1 19 203 107
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.b=t2.b);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 10 test.t2.a,test.t2.b 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.b=t2.b);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null and t2.b is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "10",
+ "used_key_parts": ["a", "b"],
+ "ref": ["test.t2.a", "test.t2.b"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+(t2.a=v1.a) or (v1.b=t2.b) and ((v1.a=1) or (v1.a=6));
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 1 19 203 107
+6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 23 303 909
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 8 80 800 314
+select * from v1,t2 where
+(t2.a=v1.a) or (v1.b=t2.b) and ((v1.a=1) or (v1.a=6));
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 1 19 203 107
+6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 23 303 909
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 8 80 800 314
+explain select * from v1,t2 where
+(t2.a=v1.a) or (v1.b=t2.b) and ((v1.a=1) or (v1.a=6));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+(t2.a=v1.a) or (v1.b=t2.b) and ((v1.a=1) or (v1.a=6));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a = t2.a or v1.b = t2.b and (v1.a = 1 or v1.a = 6)",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=1) or (v1.b=21) or (t2.a=2);
+a b max_c avg_c a b c d
+1 19 107 107.0000 2 3 207 207
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 7 13 312 406
+1 19 107 107.0000 8 64 248 107
+1 19 107 107.0000 6 20 315 279
+1 19 107 107.0000 1 19 203 107
+1 19 107 107.0000 8 80 800 314
+1 19 107 107.0000 3 12 231 190
+1 19 107 107.0000 6 23 303 909
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 1 19 203 107
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+5 16 207 207.0000 2 3 207 207
+5 27 132 132.0000 2 3 207 207
+6 20 315 279.3333 2 3 207 207
+8 33 404 213.6667 2 3 207 207
+select * from v1,t2 where (v1.a=1) or (v1.b=21) or (t2.a=2);
+a b max_c avg_c a b c d
+1 19 107 107.0000 2 3 207 207
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 7 13 312 406
+1 19 107 107.0000 8 64 248 107
+1 19 107 107.0000 6 20 315 279
+1 19 107 107.0000 1 19 203 107
+1 19 107 107.0000 8 80 800 314
+1 19 107 107.0000 3 12 231 190
+1 19 107 107.0000 6 23 303 909
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 1 19 203 107
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+5 16 207 207.0000 2 3 207 207
+5 27 132 132.0000 2 3 207 207
+6 20 315 279.3333 2 3 207 207
+8 33 404 213.6667 2 3 207 207
+explain select * from v1,t2 where (v1.a=1) or (v1.b=21) or (t2.a=2);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where (v1.a=1) or (v1.b=21) or (t2.a=2);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a = 1 or v1.b = 21 or t2.a = 2",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+(t2.a<2) and (t2.c>900) and ((v1.a<t2.a) or (t2.a<11));
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 21 500 234.6000 1 21 909 12
+5 16 207 207.0000 1 21 909 12
+5 27 132 132.0000 1 21 909 12
+6 20 315 279.3333 1 21 909 12
+8 33 404 213.6667 1 21 909 12
+select * from v1,t2 where
+(t2.a<2) and (t2.c>900) and ((v1.a<t2.a) or (t2.a<11));
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 21 500 234.6000 1 21 909 12
+5 16 207 207.0000 1 21 909 12
+5 27 132 132.0000 1 21 909 12
+6 20 315 279.3333 1 21 909 12
+8 33 404 213.6667 1 21 909 12
+explain select * from v1,t2 where
+(t2.a<2) and (t2.c>900) and ((v1.a<t2.a) or (t2.a<11));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,t2 where
+(t2.a<2) and (t2.c>900) and ((v1.a<t2.a) or (t2.a<11));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 2 and t2.c > 900"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a < t2.a or t2.a < 11",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using several derived tables : nothing to push
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,v2,t2 where
+(v1.a=v2.a) and (v1.a=t2.a) and (v2.b<50);
+a b max_c avg_c a b max_c avg_c a b c d
+8 33 404 213.6667 8 33 404 213.6667 8 64 248 107
+6 20 315 279.3333 6 20 315 279.3333 6 20 315 279
+8 33 404 213.6667 8 33 404 213.6667 8 80 800 314
+6 20 315 279.3333 6 20 315 279.3333 6 23 303 909
+select * from v1,v2,t2 where
+(v1.a=v2.a) and (v1.a=t2.a) and (v2.b<50);
+a b max_c avg_c a b max_c avg_c a b c d
+8 33 404 213.6667 8 33 404 213.6667 8 64 248 107
+6 20 315 279.3333 6 20 315 279.3333 6 20 315 279
+8 33 404 213.6667 8 33 404 213.6667 8 80 800 314
+6 20 315 279.3333 6 20 315 279.3333 6 23 303 909
+explain select * from v1,v2,t2 where
+(v1.a=v2.a) and (v1.a=t2.a) and (v2.b<50);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key1 key1 5 test.t2.a 2
+1 PRIMARY <derived3> ref key0 key0 5 test.t2.a 2 Using where
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,v2,t2 where
+(v1.a=v2.a) and (v1.a=t2.a) and (v2.b<50);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key1"],
+ "key": "key1",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.b < 50",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and t1.b < 50"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,v2,t2 where
+((v1.a=v2.a) or (v1.a=t2.a)) and (t2.b<50) and (v1.b=v2.b);
+a b max_c avg_c a b max_c avg_c a b c d
+6 20 315 279.3333 6 20 315 279.3333 2 3 207 207
+6 20 315 279.3333 6 20 315 279.3333 1 21 909 12
+6 20 315 279.3333 6 20 315 279.3333 7 13 312 406
+6 20 315 279.3333 6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 20 315 279.3333 1 19 203 107
+6 20 315 279.3333 6 20 315 279.3333 3 12 231 190
+6 20 315 279.3333 6 20 315 279.3333 6 23 303 909
+8 33 404 213.6667 8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 8 33 404 213.6667 6 23 303 909
+select * from v1,v2,t2 where
+((v1.a=v2.a) or (v1.a=t2.a)) and (t2.b<50) and (v1.b=v2.b);
+a b max_c avg_c a b max_c avg_c a b c d
+6 20 315 279.3333 6 20 315 279.3333 2 3 207 207
+6 20 315 279.3333 6 20 315 279.3333 1 21 909 12
+6 20 315 279.3333 6 20 315 279.3333 7 13 312 406
+6 20 315 279.3333 6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 20 315 279.3333 1 19 203 107
+6 20 315 279.3333 6 20 315 279.3333 3 12 231 190
+6 20 315 279.3333 6 20 315 279.3333 6 23 303 909
+8 33 404 213.6667 8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 8 33 404 213.6667 6 23 303 909
+explain select * from v1,v2,t2 where
+((v1.a=v2.a) or (v1.a=t2.a)) and (t2.b<50) and (v1.b=v2.b);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived3> ref key0 key0 5 v1.b 2 Using where
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,v2,t2 where
+((v1.a=v2.a) or (v1.a=t2.a)) and (t2.b<50) and (v1.b=v2.b);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b < 50"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.b is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["v1.b"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.a = v1.a or v1.a = t2.a",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,v2,t2 where
+((v1.a=v2.a) and (v1.a=t2.a)) or ((v2.b>13) and (t2.c<115));
+a b max_c avg_c a b max_c avg_c a b c d
+6 20 315 279.3333 6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 20 315 279.3333 6 23 303 909
+8 33 404 213.6667 8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 8 33 404 213.6667 8 80 800 314
+select * from v1,v2,t2 where
+((v1.a=v2.a) and (v1.a=t2.a)) or ((v2.b>13) and (t2.c<115));
+a b max_c avg_c a b max_c avg_c a b c d
+6 20 315 279.3333 6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 20 315 279.3333 6 23 303 909
+8 33 404 213.6667 8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 8 33 404 213.6667 8 80 800 314
+explain select * from v1,v2,t2 where
+((v1.a=v2.a) and (v1.a=t2.a)) or ((v2.b>13) and (t2.c<115));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (incremental, BNL join)
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,v2,t2 where
+((v1.a=v2.a) and (v1.a=t2.a)) or ((v2.b>13) and (t2.c<115));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a = t2.a or t2.c < 115",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "incremental",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a = t2.a and v2.a = t2.a or v2.b > 13 and t2.c < 115",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using several derived tables : pushing in all tables
+# conjunctive subformula : pushing into HAVING
+# extracted or formula : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,v2,t2 where ((v1.a=v2.a) or (v1.a=t2.a)) and
+((v2.b<50) or (v2.b=19)) and (v1.max_c<300);
+a b max_c avg_c a b max_c avg_c a b c d
+1 19 107 107.0000 6 20 315 279.3333 1 21 909 12
+1 19 107 107.0000 6 20 315 279.3333 1 19 203 107
+1 19 107 107.0000 8 33 404 213.6667 1 21 909 12
+1 19 107 107.0000 8 33 404 213.6667 1 19 203 107
+select * from v1,v2,t2 where ((v1.a=v2.a) or (v1.a=t2.a)) and
+((v2.b<50) or (v2.b=19)) and (v1.max_c<300);
+a b max_c avg_c a b max_c avg_c a b c d
+1 19 107 107.0000 6 20 315 279.3333 1 21 909 12
+1 19 107 107.0000 6 20 315 279.3333 1 19 203 107
+1 19 107 107.0000 8 33 404 213.6667 1 21 909 12
+1 19 107 107.0000 8 33 404 213.6667 1 19 203 107
+explain select * from v1,v2,t2 where ((v1.a=v2.a) or (v1.a=t2.a)) and
+((v2.b<50) or (v2.b=19)) and (v1.max_c<300);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (incremental, BNL join)
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,v2,t2 where ((v1.a=v2.a) or (v1.a=t2.a)) and
+((v2.b<50) or (v2.b=19)) and (v1.max_c<300);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c < 300"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c < 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v2.b < 50 or v2.b = 19"
+ },
+ "buffer_type": "incremental",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "(v2.a = v1.a or v1.a = t2.a) and (v2.b < 50 or v2.b = 19)",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and (t1.b < 50 or t1.b = 19)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using several derived tables : pushing only in one table
+# conjunctive subformula : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,v2,t2 where
+(v1.a=t2.a) and (v1.a=v1.b) and (v1.a=v2.a) and (v2.max_c<300);
+a b max_c avg_c a b max_c avg_c a b c d
+select * from v1,v2,t2 where
+(v1.a=t2.a) and (v1.a=v1.b) and (v1.a=v2.a) and (v2.max_c<300);
+a b max_c avg_c a b max_c avg_c a b c d
+explain select * from v1,v2,t2 where
+(v1.a=t2.a) and (v1.a=v1.b) and (v1.a=v2.a) and (v2.max_c<300);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key1 key1 10 test.t2.a,test.t2.a 2
+1 PRIMARY <derived3> ref key0 key0 5 test.t2.a 2 Using where
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,v2,t2 where
+(v1.a=t2.a) and (v1.a=v1.b) and (v1.a=v2.a) and (v2.max_c<300);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null and t2.a is not null and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key1"],
+ "key": "key1",
+ "key_length": "10",
+ "used_key_parts": ["a", "b"],
+ "ref": ["test.t2.a", "test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b = t1.a"
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.max_c < 300",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707 and max_c < 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using several derived tables : pushing only in one table
+# extracted and formula : pushing into WHERE
+# conjunctive subformula : pushing into WHERE using equalities
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,v2,t2 where (v1.a=1) and (v1.b>10) and (v1.b=v2.b);
+a b max_c avg_c a b max_c avg_c a b c d
+select * from v1,v2,t2 where (v1.a=1) and (v1.b>10) and (v1.b=v2.b);
+a b max_c avg_c a b max_c avg_c a b c d
+explain select * from v1,v2,t2 where (v1.a=1) and (v1.b>10) and (v1.b=v2.b);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived3> ref key0 key0 5 v1.b 2
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v1,v2,t2 where (v1.a=1) and (v1.b>10) and (v1.b=v2.b);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a = 1 and v1.b > 10"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.b is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["v1.b"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted or formula : pushing into WHERE
+# conjunctive subformula : pushing into WHERE using equalities
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_char as v,t2_char as t where
+(v.a=t.a) and (t.a='b') and ((v.b='Vika') or (v.b='Ali'));
+a b max_c a b c
+b Vika 2 b Ivan 1
+b Vika 2 b Ali 6
+b Vika 2 b Hermes 3
+b Vika 2 b Ivan 11
+b Vika 2 b Harry 4
+select * from v_char as v,t2_char as t where
+(v.a=t.a) and (t.a='b') and ((v.b='Vika') or (v.b='Ali'));
+a b max_c a b c
+b Vika 2 b Ivan 1
+b Vika 2 b Ali 6
+b Vika 2 b Hermes 3
+b Vika 2 b Ivan 11
+b Vika 2 b Harry 4
+explain select * from v_char as v,t2_char as t where
+(v.a=t.a) and (t.a='b') and ((v.b='Vika') or (v.b='Ali'));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 12 Using where
+1 PRIMARY t ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1_char ALL NULL NULL NULL NULL 12 Using where; Using temporary; Using filesort
+explain format=json select * from v_char as v,t2_char as t where
+(v.a=t.a) and (t.a='b') and ((v.b='Vika') or (v.b='Ali'));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "attached_condition": "v.a = 'b' and (v.b = 'Vika' or v.b = 'Ali')",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 9",
+ "filesort": {
+ "sort_key": "t1_char.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_char",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "attached_condition": "t1_char.a = 'b' and (t1_char.b = 'Vika' or t1_char.b = 'Ali')"
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "attached_condition": "t.a = 'b'"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL"
+ }
+ }
+}
+# using several derived tables : pushing in all tables
+# extracted or formula : pushing into WHERE
+# conjunctive subformulas : pushing into HAVING
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,v2,v3,t2 where
+((v1.a=v2.a) or (v1.a=t2.a)) and ((v3.b<50) or (v3.b=33))
+and (v1.max_c<500) and (v3.a=t2.a) and (v2.max_c>300);
+a b max_c avg_c a b max_c avg_c a b min_c a b c d
+6 20 315 279.3333 6 20 315 279.3333 7 11 708 7 13 312 406
+6 20 315 279.3333 6 20 315 279.3333 8 33 114 8 64 248 107
+6 20 315 279.3333 6 20 315 279.3333 6 20 214 6 20 315 279
+6 20 315 279.3333 6 20 315 279.3333 8 33 114 8 80 800 314
+6 20 315 279.3333 6 20 315 279.3333 6 20 214 6 23 303 909
+6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 20 315 279
+6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 23 303 909
+8 33 404 213.6667 6 20 315 279.3333 8 33 114 8 64 248 107
+8 33 404 213.6667 6 20 315 279.3333 8 33 114 8 80 800 314
+8 33 404 213.6667 8 33 404 213.6667 7 11 708 7 13 312 406
+8 33 404 213.6667 8 33 404 213.6667 8 33 114 8 64 248 107
+8 33 404 213.6667 8 33 404 213.6667 6 20 214 6 20 315 279
+8 33 404 213.6667 8 33 404 213.6667 8 33 114 8 80 800 314
+8 33 404 213.6667 8 33 404 213.6667 6 20 214 6 23 303 909
+select * from v1,v2,v3,t2 where
+((v1.a=v2.a) or (v1.a=t2.a)) and ((v3.b<50) or (v3.b=33))
+and (v1.max_c<500) and (v3.a=t2.a) and (v2.max_c>300);
+a b max_c avg_c a b max_c avg_c a b min_c a b c d
+6 20 315 279.3333 6 20 315 279.3333 7 11 708 7 13 312 406
+6 20 315 279.3333 6 20 315 279.3333 8 33 114 8 64 248 107
+6 20 315 279.3333 6 20 315 279.3333 6 20 214 6 20 315 279
+6 20 315 279.3333 6 20 315 279.3333 8 33 114 8 80 800 314
+6 20 315 279.3333 6 20 315 279.3333 6 20 214 6 23 303 909
+6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 20 315 279
+6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 23 303 909
+8 33 404 213.6667 6 20 315 279.3333 8 33 114 8 64 248 107
+8 33 404 213.6667 6 20 315 279.3333 8 33 114 8 80 800 314
+8 33 404 213.6667 8 33 404 213.6667 7 11 708 7 13 312 406
+8 33 404 213.6667 8 33 404 213.6667 8 33 114 8 64 248 107
+8 33 404 213.6667 8 33 404 213.6667 6 20 214 6 20 315 279
+8 33 404 213.6667 8 33 404 213.6667 8 33 114 8 80 800 314
+8 33 404 213.6667 8 33 404 213.6667 6 20 214 6 23 303 909
+explain select * from v1,v2,v3,t2 where
+((v1.a=v2.a) or (v1.a=t2.a)) and ((v3.b<50) or (v3.b=33))
+and (v1.max_c<500) and (v3.a=t2.a) and (v2.max_c>300);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived4> ref key0 key0 5 test.t2.a 2 Using where
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (incremental, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+explain format=json select * from v1,v2,v3,t2 where
+((v1.a=v2.a) or (v1.a=t2.a)) and ((v3.b<50) or (v3.b=33))
+and (v1.max_c<500) and (v3.a=t2.a) and (v2.max_c>300);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v3.b < 50 or v3.b = 33",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "min_c > 109",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and (t1.b < 50 or t1.b = 33)"
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v2.max_c > 300"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707 and max_c > 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c < 500"
+ },
+ "buffer_type": "incremental",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a = v2.a or v1.a = t2.a",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c < 500",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using several derived tables : pushing in all tables
+# conjunctive subformulas : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+(select a, b, min(c) as min_c from t1
+where t1.a>5 group by a,b having min_c < 707) v2,
+t2 where (v1.a=v2.a) and (v1.b=t2.b) and (v1.max_c>130) and (v2.min_c<130);
+a b max_c avg_c a b min_c a b c d
+select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+(select a, b, min(c) as min_c from t1
+where t1.a>5 group by a,b having min_c < 707) v2,
+t2 where (v1.a=v2.a) and (v1.b=t2.b) and (v1.max_c>130) and (v2.min_c<130);
+a b max_c avg_c a b min_c a b c d
+explain select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+(select a, b, min(c) as min_c from t1
+where t1.a>5 group by a,b having min_c < 707) v2,
+t2 where (v1.a=v2.a) and (v1.b=t2.b) and (v1.max_c>130) and (v2.min_c<130);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key1 key1 5 test.t2.b 2 Using where
+1 PRIMARY <derived3> ref key0 key0 5 v1.a 2 Using where
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+(select a, b, min(c) as min_c from t1
+where t1.a>5 group by a,b having min_c < 707) v2,
+t2 where (v1.a=v2.a) and (v1.b=t2.b) and (v1.max_c>130) and (v2.min_c<130);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key1"],
+ "key": "key1",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t2.b"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 130 and v1.a is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["v1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.min_c < 130",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "min_c < 707 and min_c < 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using several derived tables : pushing in all tables
+# extracted or formulas : pushing into HAVING
+# conjunctive subformula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+(select a, b, min(c) as min_c from t1
+where t1.a>5 group by a,b having min_c < 707) v2,
+(select a, b, avg(c) as avg_c from t1
+where t1.a<8 group by a,b) v3,
+t2 where (v1.a=v2.a) and (v1.b=v3.b) and ((v3.avg_c>170) or (v3.a<5))
+and ((v1.avg_c<400) or (v1.a>1)) and (v2.min_c<200);
+a b max_c avg_c a b min_c a b avg_c a b c d
+8 33 404 213.6667 8 33 114 1 33 497.5000 2 3 207 207
+8 33 404 213.6667 8 33 114 1 33 497.5000 1 21 909 12
+8 33 404 213.6667 8 33 114 1 33 497.5000 7 13 312 406
+8 33 404 213.6667 8 33 114 1 33 497.5000 8 64 248 107
+8 33 404 213.6667 8 33 114 1 33 497.5000 6 20 315 279
+8 33 404 213.6667 8 33 114 1 33 497.5000 1 19 203 107
+8 33 404 213.6667 8 33 114 1 33 497.5000 8 80 800 314
+8 33 404 213.6667 8 33 114 1 33 497.5000 3 12 231 190
+8 33 404 213.6667 8 33 114 1 33 497.5000 6 23 303 909
+select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+(select a, b, min(c) as min_c from t1
+where t1.a>5 group by a,b having min_c < 707) v2,
+(select a, b, avg(c) as avg_c from t1
+where t1.a<8 group by a,b) v3,
+t2 where (v1.a=v2.a) and (v1.b=v3.b) and ((v3.avg_c>170) or (v3.a<5))
+and ((v1.avg_c<400) or (v1.a>1)) and (v2.min_c<200);
+a b max_c avg_c a b min_c a b avg_c a b c d
+8 33 404 213.6667 8 33 114 1 33 497.5000 2 3 207 207
+8 33 404 213.6667 8 33 114 1 33 497.5000 1 21 909 12
+8 33 404 213.6667 8 33 114 1 33 497.5000 7 13 312 406
+8 33 404 213.6667 8 33 114 1 33 497.5000 8 64 248 107
+8 33 404 213.6667 8 33 114 1 33 497.5000 6 20 315 279
+8 33 404 213.6667 8 33 114 1 33 497.5000 1 19 203 107
+8 33 404 213.6667 8 33 114 1 33 497.5000 8 80 800 314
+8 33 404 213.6667 8 33 114 1 33 497.5000 3 12 231 190
+8 33 404 213.6667 8 33 114 1 33 497.5000 6 23 303 909
+explain select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+(select a, b, min(c) as min_c from t1
+where t1.a>5 group by a,b having min_c < 707) v2,
+(select a, b, avg(c) as avg_c from t1
+where t1.a<8 group by a,b) v3,
+t2 where (v1.a=v2.a) and (v1.b=v3.b) and ((v3.avg_c>170) or (v3.a<5))
+and ((v1.avg_c<400) or (v1.a>1)) and (v2.min_c<200);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived3> ref key0 key0 5 v1.a 2 Using where
+1 PRIMARY <derived4> ref key0 key0 5 v1.b 2 Using where
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+(select a, b, min(c) as min_c from t1
+where t1.a>5 group by a,b having min_c < 707) v2,
+(select a, b, avg(c) as avg_c from t1
+where t1.a<8 group by a,b) v3,
+t2 where (v1.a=v2.a) and (v1.b=v3.b) and ((v3.avg_c>170) or (v3.a<5))
+and ((v1.avg_c<400) or (v1.a>1)) and (v2.min_c<200);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.avg_c < 400 or v1.a > 1"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "(v1.avg_c < 400 or v1.a > 1) and v1.a is not null and v1.b is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (avg_c < 400 or t1.a > 1)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["v1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.min_c < 200",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "min_c < 707 and min_c < 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["v1.b"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v3.avg_c > 170 or v3.a < 5",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "avg_c > 170 or t1.a < 5",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 8"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted or formula : pushing into HAVING
+# conjunctive subformula : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where ((v1.a=1) or (v1.max_c<300)) and (v1.b>25);
+a b max_c avg_c a b c d
+5 27 132 132.0000 2 3 207 207
+5 27 132 132.0000 1 21 909 12
+5 27 132 132.0000 7 13 312 406
+5 27 132 132.0000 8 64 248 107
+5 27 132 132.0000 6 20 315 279
+5 27 132 132.0000 1 19 203 107
+5 27 132 132.0000 8 80 800 314
+5 27 132 132.0000 3 12 231 190
+5 27 132 132.0000 6 23 303 909
+select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where ((v1.a=1) or (v1.max_c<300)) and (v1.b>25);
+a b max_c avg_c a b c d
+5 27 132 132.0000 2 3 207 207
+5 27 132 132.0000 1 21 909 12
+5 27 132 132.0000 7 13 312 406
+5 27 132 132.0000 8 64 248 107
+5 27 132 132.0000 6 20 315 279
+5 27 132 132.0000 1 19 203 107
+5 27 132 132.0000 8 80 800 314
+5 27 132 132.0000 3 12 231 190
+5 27 132 132.0000 6 23 303 909
+explain select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where ((v1.a=1) or (v1.max_c<300)) and (v1.b>25);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+group by a,b having max_c < 707) v1,
+t2 where ((v1.a=1) or (v1.max_c<300)) and (v1.b>25);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "(v1.a = 1 or v1.max_c < 300) and v1.b > 25"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a = 1 or v1.max_c < 300",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and (t1.a = 1 or max_c < 300)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 25"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# extracted and formula : pushing into WHERE
+# conjunctive subformula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.b<30);
+a b max_c avg_c a b c d
+6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 23 303 909
+select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.b<30);
+a b max_c avg_c a b c d
+6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 23 303 909
+explain select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.b<30);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from
+(select a, b, max(c) as max_c, avg(c) as avg_c from t1
+where t1.a>5 group by a,b having max_c < 707) v1,
+t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.b<30);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 300 and v1.b < 30",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 707 and max_c > 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and t1.b < 30"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using query with union
+# conjunctive subformula : pushing into WHERE
+# conjunctive subformulas : pushing into HAVING and WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (t2.c>800)
+union
+select * from v1,t2 where (v1.max_c>100) and (v1.a>7) and (t2.d>800);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+8 33 404 213.6667 6 23 303 909
+select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (t2.c>800)
+union
+select * from v1,t2 where (v1.max_c>100) and (v1.a>7) and (t2.d>800);
+a b max_c avg_c a b c d
+1 21 500 234.6000 1 21 909 12
+8 33 404 213.6667 6 23 303 909
+explain select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (t2.c>800)
+union
+select * from v1,t2 where (v1.max_c>100) and (v1.a>7) and (t2.d>800);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived3> ref key0 key0 5 test.t2.b 2 Using where
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 UNION t2 ALL NULL NULL NULL NULL 9 Using where
+2 UNION <derived4> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (t2.c>800)
+union
+select * from v1,t2 where (v1.max_c>100) and (v1.a>7) and (t2.d>800);
+EXPLAIN
+{
+ "query_block": {
+ "union_result": {
+ "table_name": "<union1,2>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.c > 800 and t2.b is not null"
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t2.b"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.a < 5",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 2,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.d > 800"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 100 and v1.a > 7"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707 and max_c > 100",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 7"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+}
+# using query with union
+# extracted and formula : pushing into WHERE
+# extracted or formula : pushing into HAVING
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (v1.b=19)
+union
+select * from v1,t2 where ((v1.max_c>400) or (v1.avg_c>270)) and (v1.a<t2.a);
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+6 20 315 279.3333 7 13 312 406
+6 20 315 279.3333 8 64 248 107
+6 20 315 279.3333 8 80 800 314
+select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (v1.b=19)
+union
+select * from v1,t2 where ((v1.max_c>400) or (v1.avg_c>270)) and (v1.a<t2.a);
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 2 3 207 207
+1 21 500 234.6000 7 13 312 406
+1 21 500 234.6000 8 64 248 107
+1 21 500 234.6000 6 20 315 279
+1 21 500 234.6000 8 80 800 314
+1 21 500 234.6000 3 12 231 190
+1 21 500 234.6000 6 23 303 909
+6 20 315 279.3333 7 13 312 406
+6 20 315 279.3333 8 64 248 107
+6 20 315 279.3333 8 80 800 314
+explain select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (v1.b=19)
+union
+select * from v1,t2 where ((v1.max_c>400) or (v1.avg_c>270)) and (v1.a<t2.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 UNION t2 ALL NULL NULL NULL NULL 9
+2 UNION <derived4> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (v1.b=19)
+union
+select * from v1,t2 where ((v1.max_c>400) or (v1.avg_c>270)) and (v1.a<t2.a);
+EXPLAIN
+{
+ "query_block": {
+ "union_result": {
+ "table_name": "<union1,2>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b = 19"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.b = 19 and v1.a < 5"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b = 19 and t1.a < 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 2,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 400 or v1.avg_c > 270"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "(v1.max_c > 400 or v1.avg_c > 270) and v1.a < t2.a",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707 and (max_c > 400 or avg_c > 270)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+}
+# using query with union
+# extracted or formula : pushing into HAVING
+# extracted or formula : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((t2.a=v1.a) or (v1.b=t2.b)) and ((v1.a=1) or (v1.a=6))
+union
+select * from v1,t2 where ((v1.a>3) and (v1.b>27)) or (v1.max_c>550);
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 1 19 203 107
+6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 23 303 909
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 8 80 800 314
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+select * from v1,t2 where
+((t2.a=v1.a) or (v1.b=t2.b)) and ((v1.a=1) or (v1.a=6))
+union
+select * from v1,t2 where ((v1.a>3) and (v1.b>27)) or (v1.max_c>550);
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+1 21 500 234.6000 1 21 909 12
+1 21 500 234.6000 1 19 203 107
+6 20 315 279.3333 6 20 315 279
+6 20 315 279.3333 6 23 303 909
+8 33 404 213.6667 2 3 207 207
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 7 13 312 406
+8 33 404 213.6667 8 64 248 107
+8 33 404 213.6667 6 20 315 279
+8 33 404 213.6667 1 19 203 107
+8 33 404 213.6667 8 80 800 314
+8 33 404 213.6667 3 12 231 190
+8 33 404 213.6667 6 23 303 909
+explain select * from v1,t2 where
+((t2.a=v1.a) or (v1.b=t2.b)) and ((v1.a=1) or (v1.a=6))
+union
+select * from v1,t2 where ((v1.a>3) and (v1.b>27)) or (v1.max_c>550);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 UNION t2 ALL NULL NULL NULL NULL 9
+2 UNION <derived4> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where
+((t2.a=v1.a) or (v1.b=t2.b)) and ((v1.a=1) or (v1.a=6))
+union
+select * from v1,t2 where ((v1.a>3) and (v1.b>27)) or (v1.max_c>550);
+EXPLAIN
+{
+ "query_block": {
+ "union_result": {
+ "table_name": "<union1,2>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a = 1 or v1.a = 6"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "(v1.a = t2.a or v1.b = t2.b) and (v1.a = 1 or v1.a = 6)",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1 or t1.a = 6"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 2,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a > 3 and v1.b > 27 or v1.max_c > 550"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.a > 3 and v1.b > 27 or v1.max_c > 550",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707 and (t1.a > 3 and t1.b > 27 or max_c > 550)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+}
+# using query with union
+# extracted or formula : pushing into HAVING
+# conjunctive subformulas : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.a=1) and (v1.a=t2.a)) and ((v1.max_c<500) or (v1.avg_c>500))
+union
+select * from v2,t2 where
+((v2.a<t2.b) or (v2.max_c>200)) and (v2.b>10) and (t2.a<2)
+union
+select * from v2,t2 where
+(v2.max_c=t2.c) and (v2.b<10);
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+6 20 315 279.3333 1 21 909 12
+6 20 315 279.3333 1 19 203 107
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 1 19 203 107
+select * from v1,t2 where
+((v1.a=1) and (v1.a=t2.a)) and ((v1.max_c<500) or (v1.avg_c>500))
+union
+select * from v2,t2 where
+((v2.a<t2.b) or (v2.max_c>200)) and (v2.b>10) and (t2.a<2)
+union
+select * from v2,t2 where
+(v2.max_c=t2.c) and (v2.b<10);
+a b max_c avg_c a b c d
+1 19 107 107.0000 1 21 909 12
+1 19 107 107.0000 1 19 203 107
+6 20 315 279.3333 1 21 909 12
+6 20 315 279.3333 1 19 203 107
+8 33 404 213.6667 1 21 909 12
+8 33 404 213.6667 1 19 203 107
+explain select * from v1,t2 where
+((v1.a=1) and (v1.a=t2.a)) and ((v1.max_c<500) or (v1.avg_c>500))
+union
+select * from v2,t2 where
+((v2.a<t2.b) or (v2.max_c>200)) and (v2.b>10) and (t2.a<2)
+union
+select * from v2,t2 where
+(v2.max_c=t2.c) and (v2.b<10);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived4> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 UNION t2 ALL NULL NULL NULL NULL 9 Using where
+2 UNION <derived5> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+5 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 UNION t2 ALL NULL NULL NULL NULL 9 Using where
+3 UNION <derived6> ref key0 key0 5 test.t2.c 2 Using where
+6 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+NULL UNION RESULT <union1,2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where
+((v1.a=1) and (v1.a=t2.a)) and ((v1.max_c<500) or (v1.avg_c>500))
+union
+select * from v2,t2 where
+((v2.a<t2.b) or (v2.max_c>200)) and (v2.b>10) and (t2.a<2)
+union
+select * from v2,t2 where
+(v2.max_c=t2.c) and (v2.b<10);
+EXPLAIN
+{
+ "query_block": {
+ "union_result": {
+ "table_name": "<union1,2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 1"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a = 1 and (v1.max_c < 500 or v1.avg_c > 500)"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.max_c < 500 or v1.avg_c > 500",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707 and (max_c < 500 or avg_c > 500)",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 2,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 2"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived5>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v2.b > 10"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v2.a < t2.b or v2.max_c > 200",
+ "materialized": {
+ "query_block": {
+ "select_id": 5,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.c is not null"
+ },
+ "table": {
+ "table_name": "<derived6>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["max_c"],
+ "ref": ["test.t2.c"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.b < 10",
+ "materialized": {
+ "query_block": {
+ "select_id": 6,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and t1.b < 10"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+}
+# using derived table with union
+# conjunctive subformulas : pushing into WHERE and HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_union,t2 where (v_union.a<3) and (v_union.c>100);
+a b c a b c d
+1 19 107 2 3 207 207
+1 19 107 1 21 909 12
+1 19 107 7 13 312 406
+1 19 107 8 64 248 107
+1 19 107 6 20 315 279
+1 19 107 1 19 203 107
+1 19 107 8 80 800 314
+1 19 107 3 12 231 190
+1 19 107 6 23 303 909
+select * from v_union,t2 where (v_union.a<3) and (v_union.c>100);
+a b c a b c d
+1 19 107 2 3 207 207
+1 19 107 1 21 909 12
+1 19 107 7 13 312 406
+1 19 107 8 64 248 107
+1 19 107 6 20 315 279
+1 19 107 1 19 203 107
+1 19 107 8 80 800 314
+1 19 107 3 12 231 190
+1 19 107 6 23 303 909
+explain select * from v_union,t2 where (v_union.a<3) and (v_union.c>100);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 40 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v_union,t2 where (v_union.a<3) and (v_union.c>100);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 40,
+ "filtered": 100,
+ "attached_condition": "v_union.a < 3 and v_union.c > 100"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 109 and c > 100",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and t1.a < 3"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "having_condition": "c < 300 and c > 100",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a < 3"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union
+# conjunctive subformula : pushing into WHERE
+# extracted or formula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_union,t2 where
+((v_union.a<2) or (v_union.c>800)) and (v_union.b>12);
+a b c a b c d
+1 19 107 2 3 207 207
+1 19 107 1 21 909 12
+1 19 107 7 13 312 406
+1 19 107 8 64 248 107
+1 19 107 6 20 315 279
+1 19 107 1 19 203 107
+1 19 107 8 80 800 314
+1 19 107 3 12 231 190
+1 19 107 6 23 303 909
+select * from v_union,t2 where
+((v_union.a<2) or (v_union.c>800)) and (v_union.b>12);
+a b c a b c d
+1 19 107 2 3 207 207
+1 19 107 1 21 909 12
+1 19 107 7 13 312 406
+1 19 107 8 64 248 107
+1 19 107 6 20 315 279
+1 19 107 1 19 203 107
+1 19 107 8 80 800 314
+1 19 107 3 12 231 190
+1 19 107 6 23 303 909
+explain select * from v_union,t2 where
+((v_union.a<2) or (v_union.c>800)) and (v_union.b>12);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 40 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v_union,t2 where
+((v_union.a<2) or (v_union.c>800)) and (v_union.b>12);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 40,
+ "filtered": 100,
+ "attached_condition": "(v_union.a < 2 or v_union.c > 800) and v_union.b > 12"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v_union.a < 2 or v_union.c > 800",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 109 and (t1.a < 2 or c > 800)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and t1.b > 12"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "having_condition": "c < 300 and (t1.a < 2 or c > 800)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.b > 12"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union
+# conjunctive subformula : pushing into HAVING
+# conjunctive subformula : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_union,t2 where
+(v_union.a=1) and (v_union.a=t2.a) and (v_union.c<200);
+a b c a b c d
+1 19 107 1 21 909 12
+1 19 107 1 19 203 107
+select * from v_union,t2 where
+(v_union.a=1) and (v_union.a=t2.a) and (v_union.c<200);
+a b c a b c d
+1 19 107 1 21 909 12
+1 19 107 1 19 203 107
+explain select * from v_union,t2 where
+(v_union.a=1) and (v_union.a=t2.a) and (v_union.c<200);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 40 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v_union,t2 where
+(v_union.a=1) and (v_union.a=t2.a) and (v_union.c<200);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 1"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 40,
+ "filtered": 100,
+ "attached_condition": "v_union.a = 1 and v_union.c < 200"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 109 and c < 200",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "having_condition": "c < 300 and c < 200",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_char as v,t2_char as t where
+(v.a=t.a) and (v.b='Vika') and (v.max_c>2);
+a b max_c a b c
+c Vika 7 c Vinny 3
+c Vika 7 c Inga 9
+c Vika 7 c Ivan 2
+c Vika 7 c Inga 2
+select * from v_char as v,t2_char as t where
+(v.a=t.a) and (v.b='Vika') and (v.max_c>2);
+a b max_c a b c
+c Vika 7 c Vinny 3
+c Vika 7 c Inga 9
+c Vika 7 c Ivan 2
+c Vika 7 c Inga 2
+explain select * from v_char as v,t2_char as t where
+(v.a=t.a) and (v.b='Vika') and (v.max_c>2);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t ALL NULL NULL NULL NULL 12 Using where
+1 PRIMARY <derived2> ref key0 key0 2 test.t.a 2 Using where
+2 DERIVED t1_char ALL NULL NULL NULL NULL 12 Using where; Using temporary; Using filesort
+explain format=json select * from v_char as v,t2_char as t where
+(v.a=t.a) and (v.b='Vika') and (v.max_c>2);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "attached_condition": "t.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "2",
+ "used_key_parts": ["a"],
+ "ref": ["test.t.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v.b = 'Vika' and v.max_c > 2",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c < 9 and max_c > 2",
+ "filesort": {
+ "sort_key": "t1_char.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1_char",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "attached_condition": "t1_char.b = 'Vika'"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union
+# using several derived tables : pushing in all tables
+# conjunctive subformula : pushing into WHERE using equalities
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v_union,v1,t2 where
+(v_union.a=v1.a) and (v1.a=t2.a) and (t2.a=1)
+and ((v_union.c>800) or (v1.max_c>200));
+a b c a b max_c avg_c a b c d
+1 19 107 1 21 500 234.6000 1 21 909 12
+1 19 107 1 21 500 234.6000 1 19 203 107
+select * from v_union,v1,t2 where
+(v_union.a=v1.a) and (v1.a=t2.a) and (t2.a=1)
+and ((v_union.c>800) or (v1.max_c>200));
+a b c a b max_c avg_c a b c d
+1 19 107 1 21 500 234.6000 1 21 909 12
+1 19 107 1 21 500 234.6000 1 19 203 107
+explain select * from v_union,v1,t2 where
+(v_union.a=v1.a) and (v1.a=t2.a) and (t2.a=1)
+and ((v_union.c>800) or (v1.max_c>200));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived4> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 40 Using where; Using join buffer (incremental, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v_union,v1,t2 where
+(v_union.a=v1.a) and (v1.a=t2.a) and (t2.a=1)
+and ((v_union.c>800) or (v1.max_c>200));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 1"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a = 1"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1"
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 40,
+ "filtered": 100,
+ "attached_condition": "v_union.a = 1"
+ },
+ "buffer_type": "incremental",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v_union.c > 800 or v1.max_c > 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 109",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union
+# extracted or formula : pushing into WHERE
+# conjunctive subformula : pushing into HAVING
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v2_union as v,t2 where
+((v.a=6) or (v.a=8)) and (v.c>200) and (v.a=t2.a);
+a b c a b c d
+8 33 404.0000 8 64 248 107
+6 20 312.0000 6 20 315 279
+6 20 214.0000 6 20 315 279
+8 33 404.0000 8 80 800 314
+6 20 312.0000 6 23 303 909
+6 20 214.0000 6 23 303 909
+select * from v2_union as v,t2 where
+((v.a=6) or (v.a=8)) and (v.c>200) and (v.a=t2.a);
+a b c a b c d
+8 33 404.0000 8 64 248 107
+6 20 312.0000 6 20 315 279
+6 20 214.0000 6 20 315 279
+8 33 404.0000 8 80 800 314
+6 20 312.0000 6 23 303 909
+6 20 214.0000 6 23 303 909
+explain select * from v2_union as v,t2 where
+((v.a=6) or (v.a=8)) and (v.c>200) and (v.a=t2.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 6 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+4 UNION t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+NULL UNION RESULT <union2,3,4> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v2_union as v,t2 where
+((v.a=6) or (v.a=8)) and (v.c>200) and (v.a=t2.a);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "(t2.a = 6 or t2.a = 8) and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 6,
+ "filtered": 100,
+ "attached_condition": "v.c > 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 109 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and (t1.a = 6 or t1.a = 8)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "having_condition": "c < 300 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and (t1.a = 6 or t1.a = 8)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "UNION",
+ "having_condition": "c < 707 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.c > 300 and (t1.a = 6 or t1.a = 8)"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union of selects without aggregation
+# extracted conjunctive predicate: pushing in WHERE of both selects
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v3_union as v,t2 where (v.a=t2.a) and (v.c>6);
+a b c a b c d
+1 21 123 1 21 909 12
+1 21 101 1 21 909 12
+1 21 104 1 21 909 12
+1 33 988 1 21 909 12
+1 19 107 1 21 909 12
+1 21 500 1 21 909 12
+1 21 345 1 21 909 12
+7 11 708 7 13 312 406
+7 11 8 7 13 312 406
+8 33 404 8 64 248 107
+8 33 123 8 64 248 107
+8 33 114 8 64 248 107
+8 33 9 8 64 248 107
+6 20 214 6 20 315 279
+6 20 315 6 20 315 279
+6 20 309 6 20 315 279
+6 20 7 6 20 315 279
+1 21 123 1 19 203 107
+1 21 101 1 19 203 107
+1 21 104 1 19 203 107
+1 33 988 1 19 203 107
+1 19 107 1 19 203 107
+1 21 500 1 19 203 107
+1 21 345 1 19 203 107
+8 33 404 8 80 800 314
+8 33 123 8 80 800 314
+8 33 114 8 80 800 314
+8 33 9 8 80 800 314
+6 20 214 6 23 303 909
+6 20 315 6 23 303 909
+6 20 309 6 23 303 909
+6 20 7 6 23 303 909
+select * from v3_union as v,t2 where (v.a=t2.a) and (v.c>6);
+a b c a b c d
+1 21 123 1 21 909 12
+1 21 101 1 21 909 12
+1 21 104 1 21 909 12
+1 33 988 1 21 909 12
+1 19 107 1 21 909 12
+1 21 500 1 21 909 12
+1 21 345 1 21 909 12
+7 11 708 7 13 312 406
+7 11 8 7 13 312 406
+8 33 404 8 64 248 107
+8 33 123 8 64 248 107
+8 33 114 8 64 248 107
+8 33 9 8 64 248 107
+6 20 214 6 20 315 279
+6 20 315 6 20 315 279
+6 20 309 6 20 315 279
+6 20 7 6 20 315 279
+1 21 123 1 19 203 107
+1 21 101 1 19 203 107
+1 21 104 1 19 203 107
+1 33 988 1 19 203 107
+1 19 107 1 19 203 107
+1 21 500 1 19 203 107
+1 21 345 1 19 203 107
+8 33 404 8 80 800 314
+8 33 123 8 80 800 314
+8 33 114 8 80 800 314
+8 33 9 8 80 800 314
+6 20 214 6 23 303 909
+6 20 315 6 23 303 909
+6 20 309 6 23 303 909
+6 20 7 6 23 303 909
+explain select * from v3_union as v,t2 where (v.a=t2.a) and (v.c>6);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 4 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v3_union as v,t2 where (v.a=t2.a) and (v.c>6);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 4,
+ "filtered": 100,
+ "attached_condition": "v.c > 6",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and t1.a + 1 > 6"
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.c > 100 and t1.c > 6"
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union of selects without aggregation
+# extracted conjunctive OR subformula: pushing in WHERE using equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v3_union as v,t2 where (v.a=t2.a) and ((t2.a>1) or (v.b<20));
+a b c a b c d
+1 19 107 1 21 909 12
+1 19 2 1 21 909 12
+7 11 708 7 13 312 406
+7 11 8 7 13 312 406
+8 33 404 8 64 248 107
+8 33 123 8 64 248 107
+8 33 114 8 64 248 107
+8 33 9 8 64 248 107
+6 20 214 6 20 315 279
+6 20 315 6 20 315 279
+6 20 309 6 20 315 279
+6 20 7 6 20 315 279
+1 19 107 1 19 203 107
+1 19 2 1 19 203 107
+8 33 404 8 80 800 314
+8 33 123 8 80 800 314
+8 33 114 8 80 800 314
+8 33 9 8 80 800 314
+6 20 214 6 23 303 909
+6 20 315 6 23 303 909
+6 20 309 6 23 303 909
+6 20 7 6 23 303 909
+select * from v3_union as v,t2 where (v.a=t2.a) and ((t2.a>1) or (v.b<20));
+a b c a b c d
+1 19 107 1 21 909 12
+1 19 2 1 21 909 12
+7 11 708 7 13 312 406
+7 11 8 7 13 312 406
+8 33 404 8 64 248 107
+8 33 123 8 64 248 107
+8 33 114 8 64 248 107
+8 33 9 8 64 248 107
+6 20 214 6 20 315 279
+6 20 315 6 20 315 279
+6 20 309 6 20 315 279
+6 20 7 6 20 315 279
+1 19 107 1 19 203 107
+1 19 2 1 19 203 107
+8 33 404 8 80 800 314
+8 33 123 8 80 800 314
+8 33 114 8 80 800 314
+8 33 9 8 80 800 314
+6 20 214 6 23 303 909
+6 20 315 6 23 303 909
+6 20 309 6 23 303 909
+6 20 7 6 23 303 909
+explain select * from v3_union as v,t2 where (v.a=t2.a) and ((t2.a>1) or (v.b<20));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 4 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v3_union as v,t2 where (v.a=t2.a) and ((t2.a>1) or (v.b<20));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 4,
+ "filtered": 100,
+ "attached_condition": "t2.a > 1 or v.b < 20",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and (t1.a > 1 or t1.b < 20)"
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.c > 100 and (t1.a > 1 or t1.b < 20)"
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union of selects without aggregation
+# extracted the whole condition: in WHERE of both selects
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v3_union as v,t2 where
+(v.a=t2.a) and ((v.b=19) or (v.b=21)) and ((v.c<3) or (v.c>600));
+a b c a b c d
+1 19 2 1 21 909 12
+1 21 2 1 21 909 12
+1 19 2 1 19 203 107
+1 21 2 1 19 203 107
+select * from v3_union as v,t2 where
+(v.a=t2.a) and ((v.b=19) or (v.b=21)) and ((v.c<3) or (v.c>600));
+a b c a b c d
+1 19 2 1 21 909 12
+1 21 2 1 21 909 12
+1 19 2 1 19 203 107
+1 21 2 1 19 203 107
+explain select * from v3_union as v,t2 where
+(v.a=t2.a) and ((v.b=19) or (v.b=21)) and ((v.c<3) or (v.c>600));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 4 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v3_union as v,t2 where
+(v.a=t2.a) and ((v.b=19) or (v.b=21)) and ((v.c<3) or (v.c>600));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 4,
+ "filtered": 100,
+ "attached_condition": "(v.b = 19 or v.b = 21) and (v.c < 3 or v.c > 600)",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and (t1.b = 19 or t1.b = 21) and (t1.a + 1 < 3 or t1.a + 1 > 600)"
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.c > 100 and (t1.b = 19 or t1.b = 21) and (t1.c < 3 or t1.c > 600)"
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union of
+# a select without aggregation and a select with aggregation
+# extracted conjunctive predicate: pushing in WHERE of both selects
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4_union as v,t2 where (v.a=t2.a) and (v.b<20);
+a b c a b c d
+1 19 207 1 21 909 12
+7 11 808 7 13 312 406
+7 11 608 7 13 312 406
+1 19 207 1 19 203 107
+select * from v4_union as v,t2 where (v.a=t2.a) and (v.b<20);
+a b c a b c d
+1 19 207 1 21 909 12
+7 11 808 7 13 312 406
+7 11 608 7 13 312 406
+1 19 207 1 19 203 107
+explain select * from v4_union as v,t2 where (v.a=t2.a) and (v.b<20);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 4 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v4_union as v,t2 where (v.a=t2.a) and (v.b<20);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 4,
+ "filtered": 100,
+ "attached_condition": "v.b < 20",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 109",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and t1.b < 20"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.b < 20"
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using derived table with union of
+# a select without aggregation and a select with aggregation
+# extracted subformula: pushing in WHERE of one select
+# extracted subformula: pushing in HAVING of the other select
+# extracted sub-subformula: pushing in WHERE of the other select
+# using an equality in all pushdowns
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4_union as v,t2 where
+(v.a=t2.a) and ((t2.a<3) or (v.b<40)) and (v.c>500);
+a b c a b c d
+1 33 1088 1 21 909 12
+1 21 600 1 21 909 12
+1 33 888 1 21 909 12
+7 11 808 7 13 312 406
+7 11 608 7 13 312 406
+8 33 504 8 64 248 107
+1 33 1088 1 19 203 107
+1 21 600 1 19 203 107
+1 33 888 1 19 203 107
+8 33 504 8 80 800 314
+select * from v4_union as v,t2 where
+(v.a=t2.a) and ((t2.a<3) or (v.b<40)) and (v.c>500);
+a b c a b c d
+1 33 1088 1 21 909 12
+1 21 600 1 21 909 12
+1 33 888 1 21 909 12
+7 11 808 7 13 312 406
+7 11 608 7 13 312 406
+8 33 504 8 64 248 107
+1 33 1088 1 19 203 107
+1 21 600 1 19 203 107
+1 33 888 1 19 203 107
+8 33 504 8 80 800 314
+explain select * from v4_union as v,t2 where
+(v.a=t2.a) and ((t2.a<3) or (v.b<40)) and (v.c>500);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 4 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 UNION t1 ALL NULL NULL NULL NULL 20 Using where
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v4_union as v,t2 where
+(v.a=t2.a) and ((t2.a<3) or (v.b<40)) and (v.c>500);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 4,
+ "filtered": 100,
+ "attached_condition": "(t2.a < 3 or v.b < 40) and v.c > 500",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 109 and c > 500",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 10 and (t1.a < 3 or t1.b < 40)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and (t1.a < 3 or t1.b < 40) and t1.c + 100 > 500"
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded derived table : pushing the same conditions
+# using several derived tables : pushing in all tables
+# conjunctive subformula : pushing into WHERE
+# extracted and formula : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v1 where
+(v4.a<13) and (v1.a>5) and (v1.b>12);
+a b min_c a b max_c avg_c
+1 19 107 6 20 315 279.3333
+1 21 500 6 20 315 279.3333
+5 16 207 6 20 315 279.3333
+5 27 132 6 20 315 279.3333
+6 20 315 6 20 315 279.3333
+8 33 404 6 20 315 279.3333
+1 19 107 8 33 404 213.6667
+1 21 500 8 33 404 213.6667
+5 16 207 8 33 404 213.6667
+5 27 132 8 33 404 213.6667
+6 20 315 8 33 404 213.6667
+8 33 404 8 33 404 213.6667
+select * from v4,v1 where
+(v4.a<13) and (v1.a>5) and (v1.b>12);
+a b min_c a b max_c avg_c
+1 19 107 6 20 315 279.3333
+1 21 500 6 20 315 279.3333
+5 16 207 6 20 315 279.3333
+5 27 132 6 20 315 279.3333
+6 20 315 6 20 315 279.3333
+8 33 404 6 20 315 279.3333
+1 19 107 8 33 404 213.6667
+1 21 500 8 33 404 213.6667
+5 16 207 8 33 404 213.6667
+5 27 132 8 33 404 213.6667
+6 20 315 8 33 404 213.6667
+8 33 404 8 33 404 213.6667
+explain select * from v4,v1 where
+(v4.a<13) and (v1.a>5) and (v1.b>12);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where
+1 PRIMARY <derived4> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v1 where
+(v4.a<13) and (v1.a>5) and (v1.b>12);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v4.a < 13",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 15 and v1.a < 13",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 15 and t1.a < 13"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a > 5 and v1.b > 12"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and t1.b > 12"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : nothing to push
+# using several derived tables : pushing only in one table
+# conjunctive subformula : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v1,t2 where
+(v4.a=t2.a) and (v4.a=v1.a) and (v1.b>30);
+a b min_c a b max_c avg_c a b c d
+8 33 404 8 33 404 213.6667 8 64 248 107
+8 33 404 8 33 404 213.6667 8 80 800 314
+select * from v4,v1,t2 where
+(v4.a=t2.a) and (v4.a=v1.a) and (v1.b>30);
+a b min_c a b max_c avg_c a b c d
+8 33 404 8 33 404 213.6667 8 64 248 107
+8 33 404 8 33 404 213.6667 8 80 800 314
+explain select * from v4,v1,t2 where
+(v4.a=t2.a) and (v4.a=v1.a) and (v1.b>30);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key1 key1 5 test.t2.a 2
+1 PRIMARY <derived4> ref key0 key0 5 test.t2.a 2 Using where
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v1,t2 where
+(v4.a=t2.a) and (v4.a=v1.a) and (v1.b>30);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key1"],
+ "key": "key1",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 15",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 15"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.b > 30",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b > 30"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : pushing different conditions
+# using several derived tables : pushing in all tables
+# conjunctive subformula : pushing into WHERE using equalities
+# extracted and formula : pushing into WHERE using equalities
+# conjunctive subformula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v1,t2 where
+(v4.a=t2.a) and (v4.a>1) and (v4.a=v1.a) and (v4.min_c>100) and (v1.b<30);
+a b min_c a b max_c avg_c a b c d
+6 20 315 6 20 315 279.3333 6 20 315 279
+6 20 315 6 20 315 279.3333 6 23 303 909
+select * from v4,v1,t2 where
+(v4.a=t2.a) and (v4.a>1) and (v4.a=v1.a) and (v4.min_c>100) and (v1.b<30);
+a b min_c a b max_c avg_c a b c d
+6 20 315 6 20 315 279.3333 6 20 315 279
+6 20 315 6 20 315 279.3333 6 23 303 909
+explain select * from v4,v1,t2 where
+(v4.a=t2.a) and (v4.a>1) and (v4.a=v1.a) and (v4.min_c>100) and (v1.b<30);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key1 key1 5 test.t2.a 2 Using where
+1 PRIMARY <derived4> ref key0 key0 5 test.t2.a 2 Using where
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v1,t2 where
+(v4.a=t2.a) and (v4.a>1) and (v4.a=v1.a) and (v4.min_c>100) and (v1.b<30);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 1 and t2.a is not null and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key1"],
+ "key": "key1",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v4.min_c > 100",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "min_c > 100",
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 15 and v1.a > 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 15 and t1.a > 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.b < 30",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 1 and t1.b < 30"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : pushing different conditions
+# using several derived tables : pushing in all tables
+# extracted or formula : pushing into WHERE
+# conjunctive subformula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v1,t2 where
+(((v4.b>10) and (v4.a>1)) or (v4.b<20)) and (v1.max_c>200) and (v1.a=v4.a);
+a b min_c a b max_c avg_c a b c d
+1 19 107 1 21 500 234.6000 2 3 207 207
+1 19 107 1 21 500 234.6000 1 21 909 12
+1 19 107 1 21 500 234.6000 7 13 312 406
+1 19 107 1 21 500 234.6000 8 64 248 107
+1 19 107 1 21 500 234.6000 6 20 315 279
+1 19 107 1 21 500 234.6000 1 19 203 107
+1 19 107 1 21 500 234.6000 8 80 800 314
+1 19 107 1 21 500 234.6000 3 12 231 190
+1 19 107 1 21 500 234.6000 6 23 303 909
+5 16 207 5 16 207 207.0000 2 3 207 207
+5 16 207 5 16 207 207.0000 1 21 909 12
+5 16 207 5 16 207 207.0000 7 13 312 406
+5 16 207 5 16 207 207.0000 8 64 248 107
+5 16 207 5 16 207 207.0000 6 20 315 279
+5 16 207 5 16 207 207.0000 1 19 203 107
+5 16 207 5 16 207 207.0000 8 80 800 314
+5 16 207 5 16 207 207.0000 3 12 231 190
+5 16 207 5 16 207 207.0000 6 23 303 909
+5 27 132 5 16 207 207.0000 2 3 207 207
+5 27 132 5 16 207 207.0000 1 21 909 12
+5 27 132 5 16 207 207.0000 7 13 312 406
+5 27 132 5 16 207 207.0000 8 64 248 107
+5 27 132 5 16 207 207.0000 6 20 315 279
+5 27 132 5 16 207 207.0000 1 19 203 107
+5 27 132 5 16 207 207.0000 8 80 800 314
+5 27 132 5 16 207 207.0000 3 12 231 190
+5 27 132 5 16 207 207.0000 6 23 303 909
+6 20 315 6 20 315 279.3333 2 3 207 207
+6 20 315 6 20 315 279.3333 1 21 909 12
+6 20 315 6 20 315 279.3333 7 13 312 406
+6 20 315 6 20 315 279.3333 8 64 248 107
+6 20 315 6 20 315 279.3333 6 20 315 279
+6 20 315 6 20 315 279.3333 1 19 203 107
+6 20 315 6 20 315 279.3333 8 80 800 314
+6 20 315 6 20 315 279.3333 3 12 231 190
+6 20 315 6 20 315 279.3333 6 23 303 909
+8 33 404 8 33 404 213.6667 2 3 207 207
+8 33 404 8 33 404 213.6667 1 21 909 12
+8 33 404 8 33 404 213.6667 7 13 312 406
+8 33 404 8 33 404 213.6667 8 64 248 107
+8 33 404 8 33 404 213.6667 6 20 315 279
+8 33 404 8 33 404 213.6667 1 19 203 107
+8 33 404 8 33 404 213.6667 8 80 800 314
+8 33 404 8 33 404 213.6667 3 12 231 190
+8 33 404 8 33 404 213.6667 6 23 303 909
+select * from v4,v1,t2 where
+(((v4.b>10) and (v4.a>1)) or (v4.b<20)) and (v1.max_c>200) and (v1.a=v4.a);
+a b min_c a b max_c avg_c a b c d
+1 19 107 1 21 500 234.6000 2 3 207 207
+1 19 107 1 21 500 234.6000 1 21 909 12
+1 19 107 1 21 500 234.6000 7 13 312 406
+1 19 107 1 21 500 234.6000 8 64 248 107
+1 19 107 1 21 500 234.6000 6 20 315 279
+1 19 107 1 21 500 234.6000 1 19 203 107
+1 19 107 1 21 500 234.6000 8 80 800 314
+1 19 107 1 21 500 234.6000 3 12 231 190
+1 19 107 1 21 500 234.6000 6 23 303 909
+5 16 207 5 16 207 207.0000 2 3 207 207
+5 16 207 5 16 207 207.0000 1 21 909 12
+5 16 207 5 16 207 207.0000 7 13 312 406
+5 16 207 5 16 207 207.0000 8 64 248 107
+5 16 207 5 16 207 207.0000 6 20 315 279
+5 16 207 5 16 207 207.0000 1 19 203 107
+5 16 207 5 16 207 207.0000 8 80 800 314
+5 16 207 5 16 207 207.0000 3 12 231 190
+5 16 207 5 16 207 207.0000 6 23 303 909
+5 27 132 5 16 207 207.0000 2 3 207 207
+5 27 132 5 16 207 207.0000 1 21 909 12
+5 27 132 5 16 207 207.0000 7 13 312 406
+5 27 132 5 16 207 207.0000 8 64 248 107
+5 27 132 5 16 207 207.0000 6 20 315 279
+5 27 132 5 16 207 207.0000 1 19 203 107
+5 27 132 5 16 207 207.0000 8 80 800 314
+5 27 132 5 16 207 207.0000 3 12 231 190
+5 27 132 5 16 207 207.0000 6 23 303 909
+6 20 315 6 20 315 279.3333 2 3 207 207
+6 20 315 6 20 315 279.3333 1 21 909 12
+6 20 315 6 20 315 279.3333 7 13 312 406
+6 20 315 6 20 315 279.3333 8 64 248 107
+6 20 315 6 20 315 279.3333 6 20 315 279
+6 20 315 6 20 315 279.3333 1 19 203 107
+6 20 315 6 20 315 279.3333 8 80 800 314
+6 20 315 6 20 315 279.3333 3 12 231 190
+6 20 315 6 20 315 279.3333 6 23 303 909
+8 33 404 8 33 404 213.6667 2 3 207 207
+8 33 404 8 33 404 213.6667 1 21 909 12
+8 33 404 8 33 404 213.6667 7 13 312 406
+8 33 404 8 33 404 213.6667 8 64 248 107
+8 33 404 8 33 404 213.6667 6 20 315 279
+8 33 404 8 33 404 213.6667 1 19 203 107
+8 33 404 8 33 404 213.6667 8 80 800 314
+8 33 404 8 33 404 213.6667 3 12 231 190
+8 33 404 8 33 404 213.6667 6 23 303 909
+explain select * from v4,v1,t2 where
+(((v4.b>10) and (v4.a>1)) or (v4.b<20)) and (v1.max_c>200) and (v1.a=v4.a);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
+1 PRIMARY <derived4> ref key0 key0 5 v4.a 2 Using where
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v1,t2 where
+(((v4.b>10) and (v4.a>1)) or (v4.b<20)) and (v1.max_c>200) and (v1.a=v4.a);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v4.b > 10 and v4.a > 1 or v4.b < 20"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "(v4.b > 10 and v4.a > 1 or v4.b < 20) and v4.a is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 15 and (v1.b > 10 and v1.a > 1 or v1.b < 20)",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 15 and (t1.b > 10 and t1.a > 1 or t1.b < 20)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["v4.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.max_c > 200",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707 and max_c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : pushing different conditions
+# using several derived tables : pushing only in one table
+# extracted or formula : pushing into WHERE
+# extracted or formula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v2 where
+((v4.a>12) and (v4.min_c<300) and (v4.b>13)) or (v4.a<1);
+a b min_c a b max_c avg_c
+select * from v4,v2 where
+((v4.a>12) and (v4.min_c<300) and (v4.b>13)) or (v4.a<1);
+a b min_c a b max_c avg_c
+explain select * from v4,v2 where
+((v4.a>12) and (v4.min_c<300) and (v4.b>13)) or (v4.a<1);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where
+1 PRIMARY <derived4> ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v2 where
+((v4.a>12) and (v4.min_c<300) and (v4.b>13)) or (v4.a<1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v4.a > 12 and v4.min_c < 300 and v4.b > 13 or v4.a < 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "v1.a > 12 and min_c < 300 and v1.b > 13 or v1.a < 1",
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 15 and (v1.a > 12 and v1.b > 13 or v1.a < 1)",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 15 and (t1.a > 12 and t1.b > 13 or t1.a < 1)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : pushing different conditions
+# using several derived tables : pushing only in one table
+# conjunctive subformula : pushing into WHERE
+# conjunctive subformula : pushing into HAVING
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and (v4.min_c<100);
+a b min_c a b max_c avg_c
+select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and (v4.min_c<100);
+a b min_c a b max_c avg_c
+explain select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and (v4.min_c<100);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where
+1 PRIMARY <derived4> ref key0 key0 5 v4.a 2
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and (v4.min_c<100);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v4.b = v4.a and v4.min_c < 100 and v4.a is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "min_c < 100",
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.b = v1.a and v1.a < 15",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b = t1.a and t1.a < 15"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["v4.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : pushing the same conditions
+# using several derived tables : pushing in all tables
+# extracted and formula : pushing into WHERE using equalities
+# conjunctive subformula : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and (v2.b<30);
+a b min_c a b max_c avg_c
+select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and (v2.b<30);
+a b min_c a b max_c avg_c
+explain select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and (v2.b<30);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where
+1 PRIMARY <derived4> ref key0 key0 5 v4.a 2
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and (v2.b<30);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v4.b = v4.a and v4.a < 30 and v4.a is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.b = v1.a and v1.a < 15 and v1.a < 30",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b = t1.a and t1.a < 15 and t1.a < 30"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["v4.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and t1.b < 30"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : pushing the same conditions
+# using several derived tables : pushing in all tables
+# extracted or formula : pushing into WHERE using equalities
+# extracted and formula : pushing into WHERE using equalities
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and ((v2.b<30) or (v4.a>2));
+a b min_c a b max_c avg_c
+select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and ((v2.b<30) or (v4.a>2));
+a b min_c a b max_c avg_c
+explain select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and ((v2.b<30) or (v4.a>2));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where
+1 PRIMARY <derived4> ref key0 key0 5 v4.a 2
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v2 where
+(v4.a=v2.b) and (v4.a=v4.b) and ((v2.b<30) or (v4.a>2));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v4.b = v4.a and (v4.a < 30 or v4.a > 2) and v4.a is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.b = v1.a and v1.a < 15 and (v1.a < 30 or v1.a > 2)",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.b = t1.a and t1.a < 15 and (t1.a < 30 or t1.a > 2)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["v4.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5 and (t1.b < 30 or t1.b > 2)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : pushing the same conditions
+# using several derived tables : pushing in all tables
+# extracted or formula : pushing into WHERE
+# conjunctive subformula : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v2 where
+(((v4.a<12) and (v4.b>13)) or (v4.a>10)) and
+(v4.min_c=v2.max_c) and (v4.min_c>100);
+a b min_c a b max_c avg_c
+6 20 315 6 20 315 279.3333
+8 33 404 8 33 404 213.6667
+select * from v4,v2 where
+(((v4.a<12) and (v4.b>13)) or (v4.a>10)) and
+(v4.min_c=v2.max_c) and (v4.min_c>100);
+a b min_c a b max_c avg_c
+6 20 315 6 20 315 279.3333
+8 33 404 8 33 404 213.6667
+explain select * from v4,v2 where
+(((v4.a<12) and (v4.b>13)) or (v4.a>10)) and
+(v4.min_c=v2.max_c) and (v4.min_c>100);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where
+1 PRIMARY <derived4> ref key0 key0 5 v4.min_c 2
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v2 where
+(((v4.a<12) and (v4.b>13)) or (v4.a>10)) and
+(v4.min_c=v2.max_c) and (v4.min_c>100);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "(v4.a < 12 and v4.b > 13 or v4.a > 10) and v4.min_c > 100 and v4.min_c is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "min_c > 100",
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 15 and (v1.a < 12 and v1.b > 13 or v1.a > 10)",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 15 and (t1.a < 12 and t1.b > 13 or t1.a > 10)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["max_c"],
+ "ref": ["v4.min_c"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707 and max_c > 100",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+# using embedded view : pushing the same conditions
+# using several derived tables : pushing only in one table
+# extracted or formula : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v4,v2,t2 where
+(((v4.a<12) and (t2.b>13)) or (v4.a>10)) and
+(v4.min_c=t2.c) and (t2.c>100);
+a b min_c a b max_c avg_c a b c d
+6 20 315 6 20 315 279.3333 6 20 315 279
+6 20 315 8 33 404 213.6667 6 20 315 279
+select * from v4,v2,t2 where
+(((v4.a<12) and (t2.b>13)) or (v4.a>10)) and
+(v4.min_c=t2.c) and (t2.c>100);
+a b min_c a b max_c avg_c a b c d
+6 20 315 6 20 315 279.3333 6 20 315 279
+6 20 315 8 33 404 213.6667 6 20 315 279
+explain select * from v4,v2,t2 where
+(((v4.a<12) and (t2.b>13)) or (v4.a>10)) and
+(v4.min_c=t2.c) and (t2.c>100);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.c 2 Using where
+1 PRIMARY <derived4> ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
+4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from v4,v2,t2 where
+(((v4.a<12) and (t2.b>13)) or (v4.a>10)) and
+(v4.min_c=t2.c) and (t2.c>100);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.c > 100 and t2.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["min_c"],
+ "ref": ["test.t2.c"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v4.a < 12 and t2.b > 13 or v4.a > 10",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "min_c > 100",
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "v1.a < 15 and (v1.a < 12 or v1.a > 10)",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a < 15 and (t1.a < 12 or t1.a > 10)"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "max_c < 707",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1,v2,v3,v4;
+drop view v_union,v2_union,v3_union,v4_union;
+drop view v_double,v_char,v_decimal;
+drop table t1,t2,t1_double,t2_double,t1_char,t2_char,t1_decimal,t2_decimal;
+#
+# MDEV-10782: condition extracted from a multiple equality
+# pushed into HAVING
+#
+CREATE TABLE t1 (i int);
+INSERT INTO t1 VALUES (1),(2);
+EXPLAIN EXTENDED
+SELECT *
+FROM ( SELECT * FROM ( SELECT MIN(i) as f FROM t1 ) sq1 ) AS sq2
+WHERE f = 8;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2 100.00 Using where
+3 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00
+Warnings:
+Note 1003 /* select#1 */ select `sq1`.`f` AS `f` from (/* select#3 */ select min(`test`.`t1`.`i`) AS `f` from `test`.`t1` having `f` = 8) `sq1` where `sq1`.`f` = 8
+SELECT *
+FROM ( SELECT * FROM ( SELECT MIN(i) as f FROM t1 ) sq1 ) AS sq2
+WHERE f = 8;
+f
+SELECT *
+FROM ( SELECT * FROM ( SELECT MIN(i) as f FROM t1 ) sq1 ) AS sq2
+WHERE f = 1;
+f
+1
+DROP TABLE t1;
+#
+# MDEV-10783: pushdown into constant view
+#
+CREATE TABLE t1 (i int) ENGINE=MyISAM;
+CREATE VIEW v AS SELECT 5;
+SELECT * FROM t1 WHERE 1 IN ( SELECT * FROM v );
+i
+DROP VIEW v;
+DROP TABLE t1;
+#
+# MDEV-10785: second execution of a query with condition
+# pushed into view
+#
+CREATE TABLE t1 (i int);
+CREATE VIEW v1 AS SELECT i FROM t1 WHERE i < 5;
+CREATE FUNCTION f (in1 int) RETURNS int RETURN in1;
+CREATE VIEW v2 AS SELECT * FROM v1 GROUP BY i;
+PREPARE stmt FROM "SELECT * FROM v2 WHERE f(0) <> 2";
+EXECUTE stmt;
+i
+EXECUTE stmt;
+i
+DROP FUNCTION f;
+DROP VIEW v2,v1;
+DROP TABLE t1;
+#
+# MDEV-10884: condition pushdown into derived specified by
+# 1. unit with SELECT containing ORDER BY ... LIMIT
+# 2. unit containing global ORDER BY ... LIMIT
+#
+create table t1(a int);
+insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+select a from t1 order by a limit 5;
+a
+0
+1
+2
+3
+4
+set statement optimizer_switch='condition_pushdown_for_derived=off' for
+select * from (select a from t1 order by a limit 5) t where t.a not in (1,2,3);
+a
+0
+4
+set statement optimizer_switch='condition_pushdown_for_derived=on' for
+select * from (select a from t1 order by a limit 5) t where t.a not in (1,2,3);
+a
+0
+4
+select a from t1 where a < 4 union select a from t1 where a > 5
+order by a limit 5;
+a
+0
+1
+2
+3
+6
+set statement optimizer_switch='condition_pushdown_for_derived=off' for
+select * from
+(select a from t1 where a < 4 union select a from t1 where a > 5
+order by a limit 5) t where t.a not in (2,9);
+a
+0
+1
+3
+6
+set statement optimizer_switch='condition_pushdown_for_derived=on' for
+select * from
+(select a from t1 where a < 4 union select a from t1 where a > 5
+order by a limit 5) t where t.a not in (2,9);
+a
+0
+1
+3
+6
+drop table t1;
+#
+# MDEV-11072: pushdown of the condition obtained
+# after constant row substitution
+#
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+CREATE OR REPLACE VIEW v2 AS SELECT * FROM t2;
+CREATE TABLE t3 (c INT) ENGINE=MyISAM;
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v3 AS SELECT * FROM t3;
+SELECT * FROM t1 WHERE a IN (
+SELECT b FROM v2 WHERE b < a OR b IN (
+SELECT c FROM v3 WHERE c = a
+)
+);
+a
+INSERT INTO t1 VALUES (2);
+INSERT INTO t2 VALUES (3), (2);
+INSERT INTO t3 VALUES (4), (1), (2), (7);
+SELECT * FROM t1 WHERE a IN (
+SELECT b FROM v2 WHERE b < a OR b IN (
+SELECT c FROM v3 WHERE c = a
+)
+);
+a
+2
+EXPLAIN FORMAT=JSON
+SELECT * FROM t1 WHERE a IN (
+SELECT b FROM v2 WHERE b < a OR b IN (
+SELECT c FROM v3 WHERE c = a
+)
+);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "const_condition": "0 or <in_optimizer>(2,<exists>(subquery#3))",
+ "table": {
+ "table_name": "t1",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.b = 2",
+ "first_match": "t1"
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "<derived5>",
+ "access_type": "index_subquery",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["c"],
+ "ref": ["func"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 5,
+ "table": {
+ "table_name": "t3",
+ "access_type": "ALL",
+ "rows": 4,
+ "filtered": 100,
+ "attached_condition": "t3.c = 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+}
+CREATE TABLE t4 (d INT, e INT) ENGINE=MyISAM;
+INSERT INTO t4 VALUES (1,10),(3,11),(2,10),(2,20),(3,21);
+CREATE OR REPLACE VIEW v4 AS
+SELECT d, sum(e) AS s FROM t4 GROUP BY d;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for SELECT * FROM t1 WHERE a IN (
+SELECT b FROM v2 WHERE b < a OR b IN (
+SELECT d FROM v4 WHERE s > a
+)
+);
+a
+2
+SELECT * FROM t1 WHERE a IN (
+SELECT b FROM v2 WHERE b < a OR b IN (
+SELECT d FROM v4 WHERE s > a
+)
+);
+a
+2
+explain SELECT * FROM t1 WHERE a IN (
+SELECT b FROM v2 WHERE b < a OR b IN (
+SELECT d FROM v4 WHERE s > a
+)
+);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 system NULL NULL NULL NULL 1
+1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; FirstMatch(t1)
+3 DEPENDENT SUBQUERY <derived5> index_subquery key0 key0 5 func 2 Using where
+5 DERIVED t4 ALL NULL NULL NULL NULL 5 Using temporary; Using filesort
+explain format=json SELECT * FROM t1 WHERE a IN (
+SELECT b FROM v2 WHERE b < a OR b IN (
+SELECT d FROM v4 WHERE s > a
+)
+);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "const_condition": "0 or <in_optimizer>(2,<exists>(subquery#3))",
+ "table": {
+ "table_name": "t1",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.b = 2",
+ "first_match": "t1"
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "<derived5>",
+ "access_type": "index_subquery",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["d"],
+ "ref": ["func"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 5,
+ "having_condition": "s > 2",
+ "filesort": {
+ "sort_key": "t4.d",
+ "temporary_table": {
+ "table": {
+ "table_name": "t4",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+}
+DROP VIEW v2,v3,v4;
+DROP TABLE t1,t2,t3,t4;
+#
+# MDEV-10800: pushdown of the condition obtained
+# after constant row substitution
+#
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1);
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3),(4);
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
+SELECT * FROM
+( SELECT * FROM t1
+WHERE EXISTS ( SELECT * FROM v2 WHERE b = a ) ) AS sq;
+a
+EXPLAIN FORMAT=JSON
+SELECT * FROM
+( SELECT * FROM t1
+WHERE EXISTS ( SELECT * FROM v2 WHERE b = a ) ) AS sq;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "const_condition": "<in_optimizer>(1,exists(subquery#3))",
+ "table": {
+ "table_name": "t1",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.b = 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.b = 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+}
+DROP VIEW v2;
+DROP TABLE t1,t2;
+#
+# MDEV-11102: condition pushdown into materialized inner table
+# of outer join is not applied as not being valid
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (0),(2);
+CREATE TABLE t2 (b INT);
+INSERT INTO t2 VALUES (1),(2);
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
+SELECT * FROM t1 LEFT JOIN t2 ON a = b WHERE b IS NULL;
+a b
+0 NULL
+SELECT * FROM t1 LEFT JOIN v2 ON a = b WHERE b IS NULL;
+a b
+0 NULL
+EXPLAIN FORMAT=JSON
+SELECT * FROM t1 LEFT JOIN v2 ON a = b WHERE b IS NULL;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "trigcond(v2.b is null) and trigcond(trigcond(t1.a is not null))",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v2;
+DROP TABLE t1,t2;
+#
+# MDEV-11103: pushdown condition with ANY subquery
+#
+CREATE TABLE t1 (i INT);
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES (1),(2);
+EXPLAIN FORMAT=JSON
+SELECT * FROM v1 WHERE i <= ANY ( SELECT 3 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "<nop>(v1.i <= 3)",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "<nop>(t1.i <= 3)"
+ }
+ }
+ }
+ }
+ }
+}
+Warnings:
+Note 1249 Select 2 was reduced during optimization
+SELECT * FROM v1 WHERE i <= ANY ( SELECT 3 );
+i
+1
+2
+DROP VIEW v1;
+DROP TABLE t1;
+#
+# MDEV-11315: condition with outer reference to mergeable derived
+#
+CREATE TABLE t1 (pk1 INT PRIMARY KEY, a INT, b INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (10,7,1),(11,0,2);
+CREATE TABLE t2 (pk2 INT PRIMARY KEY, c INT, d DATETIME) ENGINE=MyISAM;
+INSERT INTO t2 VALUES
+(1,4,'2008-09-27 00:34:58'),
+(2,5,'2007-05-28 00:00:00'),
+(3,6,'2009-07-25 09:21:20');
+CREATE VIEW v1 AS SELECT * FROM t1;
+CREATE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
+SELECT * FROM v1 AS sq
+WHERE b IN ( SELECT pk2 FROM v2 WHERE c > sq.b ) OR b = 100;
+pk1 a b
+10 7 1
+11 0 2
+EXPLAIN FORMAT=JSON
+SELECT * FROM v1 AS sq
+WHERE b IN ( SELECT pk2 FROM v2 WHERE c > sq.b ) OR b = 100;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "<in_optimizer>(t1.b,<exists>(subquery#2)) or t1.b = 100"
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "index_subquery",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "4",
+ "used_key_parts": ["pk2"],
+ "ref": ["func"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+}
+SELECT * FROM ( SELECT * FROM t1 ) AS sq
+WHERE b IN ( SELECT pk2 FROM v2 WHERE c > sq.b ) OR b = 100;
+pk1 a b
+10 7 1
+11 0 2
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT * FROM t1 ) AS sq
+WHERE b IN ( SELECT pk2 FROM v2 WHERE c > sq.b ) OR b = 100;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "<in_optimizer>(t1.b,<exists>(subquery#3)) or t1.b = 100"
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "index_subquery",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "4",
+ "used_key_parts": ["pk2"],
+ "ref": ["func"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+}
+DROP VIEW v1,v2;
+DROP TABLE t1,t2;
+#
+# MDEV-11313: pushdown of the condition obtained
+# after constant row substitution
+#
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (50);
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+SELECT ( SELECT COUNT(*) FROM v1 WHERE a = t2.b ) AS f FROM t2 GROUP BY f;
+f
+0
+EXPLAIN FORMAT=JSON
+SELECT ( SELECT COUNT(*) FROM v1 WHERE a = t2.b ) AS f FROM t2 GROUP BY f;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.a = 50",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.a = 50"
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+}
+CREATE TABLE t3 (a INT, b INT) ENGINE=MYISAM;
+INSERT INTO t3 VALUES (1,10),(3,11),(2,10),(2,20),(3,21);
+CREATE VIEW v2 AS SELECT a, sum(b) AS s FROM t3 GROUP BY a ;
+SELECT ( SELECT COUNT(*) FROM v2 WHERE s < t2.b ) AS f FROM t2 GROUP BY f;
+f
+3
+EXPLAIN FORMAT=JSON
+SELECT ( SELECT COUNT(*) FROM v2 WHERE s < t2.b ) AS f FROM t2 GROUP BY f;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "v2.s < 50",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "s < 50",
+ "filesort": {
+ "sort_key": "t3.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t3",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+}
+DROP VIEW v1,v2;
+DROP TABLE t1,t2,t3;
+#
+# MDEV-10882: pushdown of the predicate with cached value
+#
+CREATE TABLE t1 (a INT NOT NULL, b INT NOT NULL) ENGINE=MyISAM;
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES (1,2),(3,4);
+CREATE TABLE t2 (c INT NOT NULL) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (5),(6);
+SELECT a, GROUP_CONCAT(b) FROM v1
+WHERE b IN ( SELECT COUNT(c) FROM t2 ) GROUP BY a;
+a GROUP_CONCAT(b)
+1 2
+EXPLAIN FORMAT=JSON
+SELECT a, GROUP_CONCAT(b) FROM v1
+WHERE b IN ( SELECT COUNT(c) FROM t2 ) GROUP BY a;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery2>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "read_sorted_file": {
+ "filesort": {
+ "sort_key": "v1.a",
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.b = 2",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.b = 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v1;
+DROP TABLE t1,t2;
+#
+# MDEV-10836: pushdown of the predicate with cached value
+#
+CREATE TABLE t (pk INT PRIMARY KEY, f INT) ENGINE=MyISAM;
+CREATE ALGORITHM=TEMPTABLE VIEW v AS SELECT * FROM t;
+INSERT INTO t VALUES (1,1),(3,2);
+SELECT * FROM v AS v1, v AS v2
+WHERE v2.pk > v1.f AND v1.f IN ( SELECT COUNT(pk) FROM t );
+pk f pk f
+3 2 3 2
+EXPLAIN FORMAT=JSON
+SELECT * FROM v AS v1, v AS v2
+WHERE v2.pk > v1.f AND v1.f IN ( SELECT COUNT(pk) FROM t );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery2>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.f = 2",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t.f = 2"
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.pk > 2"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 4,
+ "table": {
+ "table_name": "t",
+ "access_type": "range",
+ "possible_keys": ["PRIMARY"],
+ "key": "PRIMARY",
+ "key_length": "4",
+ "used_key_parts": ["pk"],
+ "rows": 2,
+ "filtered": 100,
+ "index_condition": "t.pk > 2"
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v;
+DROP TABLE t;
+#
+# MDEV-11488: pushdown of the predicate with cached value
+#
+CREATE TABLE t1 (i INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(3),(2);
+CREATE TABLE t2 (j INT, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3),(4);
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+i
+3
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "sq.i = 3",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.i = 3"
+ }
+ }
+ }
+ }
+ }
+}
+UPDATE t2 SET j = 2 WHERE j = 3;
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+i
+2
+DROP TABLE t1,t2;
+CREATE TABLE t1 (i FLOAT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1.5),(3.2),(2.71);
+CREATE TABLE t2 (j FLOAT, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3.2),(2.71);
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+i
+2.71
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "sq.i = 2.71",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.i = 2.7100000381469727"
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1,t2;
+CREATE TABLE t1 (i DECIMAL(10,2)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1.5),(3.21),(2.47);
+CREATE TABLE t2 (j DECIMAL(10,2), KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3.21),(4.55);
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+i
+3.21
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "sq.i = 3.21",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.i = 3.21"
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1,t2;
+CREATE TABLE t1 (i VARCHAR(32)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('cc'),('aa'),('ddd');
+CREATE TABLE t2 (j VARCHAR(16), KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('bbb'),('aa');
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+i
+aa
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "sq.i = 'aa'",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.i = 'aa'"
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1,t2;
+CREATE TABLE t1 (i DATETIME) ENGINE=MyISAM;
+INSERT INTO t1 VALUES
+('2008-09-27 00:34:58'),('2007-05-28 00:00:00'), ('2009-07-25 09:21:20');
+CREATE TABLE t2 (j DATETIME, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES
+('2007-05-28 00:00:00'), ('2010-08-25 00:00:00');
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+i
+2007-05-28 00:00:00
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "sq.i = '2007-05-28 00:00:00'",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.i = TIMESTAMP'2007-05-28 00:00:00'"
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1,t2;
+CREATE TABLE t1 (i DATE) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('2008-09-27'),('2007-05-28'), ('2009-07-25');
+CREATE TABLE t2 (j DATE, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('2007-05-28'), ('2010-08-25');
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+i
+2007-05-28
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "sq.i = '2007-05-28'",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.i = DATE'2007-05-28'"
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1,t2;
+CREATE TABLE t1 (i TIME) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('00:34:58'),('10:00:02'), ('09:21:20');
+CREATE TABLE t2 (j TIME, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('10:00:02'), ('11:00:10');
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+i
+10:00:02
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "message": "Select tables optimized away"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "sq.i = '10:00:02'",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.i = TIME'10:00:02'"
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1,t2;
+#
+# MDEV-11593: pushdown of condition with NULLIF
+#
+CREATE TABLE t1 (i INT);
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES (2), (1);
+SELECT * FROM v1 WHERE NULLIF(1, i);
+i
+2
+EXPLAIN FORMAT=JSON
+SELECT * FROM v1 WHERE NULLIF(1, i);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "nullif(1,v1.i)",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "nullif(1,t1.i)"
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v1;
+DROP TABLE t1;
+#
+# MDEV-11608: pushdown of the predicate with cached null value
+#
+CREATE TABLE t1 (c VARCHAR(3));
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES ('foo'),('bar');
+CREATE TABLE t2 (c VARCHAR(3));
+INSERT INTO t2 VALUES ('foo'),('xyz');
+SELECT * FROM v1 WHERE v1.c IN ( SELECT MIN(c) FROM t2 WHERE 0 );
+c
+EXPLAIN FORMAT=JSON
+SELECT * FROM v1 WHERE v1.c IN ( SELECT MIN(c) FROM t2 WHERE 0 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<subquery2>",
+ "access_type": "system",
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "message": "Impossible WHERE"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c = NULL",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.c = NULL"
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v1;
+DROP TABLE t1,t2;
+CREATE TABLE t1 (d DECIMAL(10,2));
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES (5.37),(1.1);
+CREATE TABLE t2 (d DECIMAL(10,2));
+INSERT INTO t2 VALUES ('1.1'),('2.23');
+SELECT * FROM v1 WHERE v1.d IN ( SELECT MIN(d) FROM t2 WHERE 0 );
+d
+DROP VIEW v1;
+DROP TABLE t1,t2;
+#
+# MDEV-11820: second execution of PS for query
+# with false subquery predicate in WHERE
+#
+CREATE TABLE t1 (c VARCHAR(3)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('foo'),('bar');
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+CREATE TABLE t2 (a INT);
+INSERT INTO t2 VALUES (3), (4);
+PREPARE stmt1 FROM
+" SELECT * FROM v1 WHERE 1 IN (SELECT a FROM t2) OR c = 'foo'";
+PREPARE stmt2 FROM
+"EXPLAIN FORMAT=JSON
+ SELECT * FROM v1 WHERE 1 IN (SELECT a FROM t2) OR c = 'foo'";
+EXECUTE stmt1;
+c
+foo
+EXECUTE stmt2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c = 'foo'",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.c = 'foo'"
+ }
+ }
+ }
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "1 = t2.a"
+ }
+ }
+ }
+ ]
+ }
+}
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+EXECUTE stmt1;
+c
+foo
+EXECUTE stmt2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "<cache>(<in_optimizer>(1,<exists>(subquery#2))) or v1.c = 'foo'",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100
+ }
+ }
+ }
+ },
+ "subqueries": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 128,
+ "filtered": 100,
+ "attached_condition": "1 = t2.a"
+ }
+ }
+ }
+ ]
+ }
+}
+DEALLOCATE PREPARE stmt1;
+DEALLOCATE PREPARE stmt2;
+DROP VIEW v1;
+DROP TABLE t1,t2;
+#
+# MDEV-12373: pushdown into derived with side effects is prohibited
+#
+CREATE TABLE sales_documents (
+id int NOT NULL AUTO_INCREMENT,
+sale_id int NULL DEFAULT NULL,
+type tinyint unsigned NULL DEFAULT NULL,
+data text NULL DEFAULT NULL COLLATE 'utf8_unicode_ci',
+date date NULL DEFAULT NULL,
+order_number int unsigned NULL DEFAULT NULL,
+created_at int NULL DEFAULT NULL,
+updated_at int NULL DEFAULT NULL,
+generated tinyint NOT NULL DEFAULT '0',
+synced_at int NOT NULL DEFAULT '0',
+sum decimal(13,2) NOT NULL DEFAULT '0',
+PRIMARY KEY (id)
+);
+INSERT INTO sales_documents
+(id, sale_id, type, order_number, data, created_at,
+updated_at, date, generated, synced_at, sum)
+VALUES
+(555, 165, 3, 5, '{}', 1486538300, 1486722835, '2017-02-17', 0, 1486538313, 2320.00),
+(556, 165, 2, 3, '{}', 1486538304, 1486563125, '2017-02-08', 1, 1486538302, 2320.00),
+(557, 158, 2, 2, '{}', 1486538661, 1486538661, '2017-02-08', 0, 1486538660, 2320.00),
+(558, 171, 1, 3, '{}', 1486539104, 1488203405, '2017-02-08', 1, 1486539102, 23230.00),
+(559, 171, 2, 5, '{}', 1486549233, 1487146010, '2017-02-08', 1, 1486549225, 37690.00),
+(560, 172, 1, 1, '{}', 1486658260, 1488203409, '2017-02-09', 1, 1486658256, 40312.00),
+(561, 172, 2, 1, '{}', 1486711997, 1486711997, '2017-02-10', 1, 1486711996, 40312.00),
+(562, 172, 3, 1, '{}', 1486712104, 1486721395, '2017-02-10', 1, 1486712101, 40312.00),
+(563, 171, 3, 2, '{}', 1486712953, 1486720244, '2017-02-10', 1, 1486712910, 23230.00),
+(564, 170, 1, 2, '{}', 1486715948, 1488203410, '2017-02-10', 1, 1486715930, 28873.00),
+(565, 170, 3, 3, '{}', 1486716782, 1486717426, '2017-02-10', 1, 1486716779, 61948.00),
+(566, 166, 3, 4, '{}', 1486720947, 1486720947, '2017-02-10', 1, 1486720945, 4640.00),
+(567, 167, 3, 5, '{}', 1486722741, 1486722783, '2017-02-26', 0, 1486722738, 14755.00),
+(568, 165, 1, 4, '{}', 1486722849, 1486722849, '2017-02-10', 0, 1486722846, 2320.00),
+(569, 173, 2, 2, '{}', 1486723073, 1487071275, '2017-02-10', 1, 1486723071, 14282.00),
+(570, 173, 1, 4, '{}', 1486723100, 1488203412, '2017-02-10', 1, 1486723099, 14282.00),
+(571, 167, 2, 4, '{}', 1486730859, 1486730859, '2017-02-10', 1, 1486730856, 18655.00),
+(572, 167, 1, 5, '{}', 1486730883, 1488203412, '2017-02-10', 1, 1486730877, 18655.00),
+(573, 174, 2, 51, '{}', 1486731622, 1487060259, '2017-02-10', 1, 1486731620, 7140.00),
+(574, 174, 3, 5, '{}', 1486993472, 1486993472, '2017-02-13', 1, 1488216147, 28020.00),
+(575, 174, 1, 6, '{}', 1486993530, 1488203412, '2017-02-13', 1, 1486993505, 7140.00),
+(576, 173, 3, 6, '{}', 1487071425, 1487071425, '2017-02-14', 0, 1487071422, 14282.00),
+(577, 178, 2, 6, '{}', 1487327372, 1487327372, '2017-02-17', 1, 1487327370, 12321.00),
+(578, 177, 2, 7, '{}', 1487327394, 1487327394, '2017-02-17', 0, 1487327391, 4270.00),
+(579, 182, 3, 6, '{}', 1487750589, 1487751693, '2017-02-22', 1, 1487751688, 4270.00),
+(580, 182, 2, 7, '{}', 1487750601, 1487750663, '2017-02-22', 1, 1487750598, 4270.00),
+(581, 182, 1, 7, '{}', 1487750694, 1488203412, '2017-02-22', 1, 1487750692, 4270.00),
+(582, 185, 3, 7, '{}', 1487774051, 1487774051, '2017-02-22', 0, 1487774043, 8913.00),
+(583, 184, 3, 7, '{}', 1487774071, 1487774235, '2017-02-22', 0, 1487774093, 3285.00),
+(584, 184, 2, 8, '{}', 1487774074, 1487774074, '2017-02-22', 0, 1487774073, 3285.00),
+(585, 184, 1, 8, '{}', 1487774081, 1487774081, '2017-02-22', 0, 1487774075, 3285.00),
+(586, 193, 2, 8, '{}', 1487955294, 1487955318, '2017-02-24', 0, 1487955311, 4270.00),
+(587, 193, 1, 8, '{}', 1487955324, 1487955324, '2017-02-24', 0, 1487955320, 4270.00),
+(588, 193, 3, 7, '{}', 1487955341, 1487955341, '2017-02-24', 0, 1487955325, 4270.00),
+(589, 186, 1, 8, '{}', 1487957291, 1487957464, '2017-02-24', 0, 1487957459, 6960.00),
+(590, 186, 2, 8, '{}', 1487957308, 1487957468, '2017-02-24', 0, 1487957465, 6960.00),
+(591, 186, 3, 7, '{}', 1487957312, 1487957473, '2017-02-24', 0, 1487957469, 6960.00),
+(592, 194, 1, 8, '{}', 1488193293, 1488203412, '2017-02-27', 1, 1488193280, 2320.00),
+(593, 194, 2, 8, '{}', 1488193304, 1488193304, '2017-02-27', 1, 1488193303, 2320.00),
+(594, 210, 1, 9, '{}', 1488198896, 1488198896, '2017-02-27', 0, 1488198885, 4270.00),
+(595, 210, 2, 12, '{}', 1488198901, 1488198901, '2017-02-27', 1, 1488532585, 4270.00),
+(596, 210, 3, 10, '{}', 1488198904, 1488198904, '2017-02-27', 1, 1488532565, 4270.00),
+(597, 209, 2, 9, '{}', 1488200016, 1488450772, '2017-02-27', 1, 1488450449, 4270.00),
+(598, 209, 1, 9, '{}', 1488200020, 1488200063, '2017-02-27', 1, 1488200017, 4271.00),
+(599, 209, 3, 7, '{}', 1488200053, 1488200053, '2017-02-27', 0, 1488200021, 4271.00),
+(600, 211, 2, 10, '{}', 1488216265, 1489402027, '2017-02-27', 1, 1488216264, 2320.00),
+(601, 211, 3, 7, '{}', 1488216281, 1488216281, '2017-02-27', 1, 1488216276, 2320.00),
+(602, 211, 1, 10, '{}', 1488216283, 1488216283, '2017-02-27', 1, 1488216282, 2320.00),
+(603, 198, 2, 11, '{}', 1488280125, 1488280125, '2017-02-28', 0, 1488280095, 4270.00),
+(604, 198, 1, 11, '{}', 1488280160, 1488280160, '2017-02-28', 0, 1488280126, 4270.00),
+(605, 198, 3, 8, '{}', 1488280440, 1488280440, '2017-02-28', 0, 1488280435, 4270.00),
+(606, 212, 1, 12, '{}', 1488286301, 1489402168, '2017-02-28', 1, 1488286295, 13825.00),
+(607, 212, 3, 8, '{}', 1488289644, 1488289690, '2017-02-28', 1, 1488289642, 25295.00),
+(608, 212, 2, 13, '{}', 1488290350, 1488290431, '2017-02-28', 1, 1488290347, 13133.75),
+(609, 213, 1, 11, '{}', 1488529470, 1488529470, '2017-03-03', 1, 1488529461, 5660.00),
+(610, 213, 2, 11, '{}', 1488529484, 1488529484, '2017-03-03', 1, 1488529479, 5660.00),
+(611, 213, 3, 9, '{}', 1488529493, 1488529493, '2017-03-03', 1, 1488529489, 5660.00),
+(612, 197, 2, 13, '{}', 1489400715, 1489400715, '2017-03-13', 0, 1489398959, 4270.00),
+(613, 219, 3, 11, '{}', 1490084337, 1490181958, '2017-03-21', 1, 1490084334, 73526.00),
+(614, 216, 3, 11, '{}', 1490085757, 1490086717, '2017-03-21', 0, 1490085755, 5377.00);
+SELECT * FROM
+(SELECT @row := @row + 1 as row, a.* from (
+SELECT t.order_number
+FROM sales_documents t
+WHERE
+t.type = 2 AND
+t.date >= '2017-01-01' AND
+t.date <= '2017-12-31' AND
+t.order_number IS NOT NULL AND
+t.generated = 1
+GROUP BY t.order_number
+) a, (SELECT @row := 0) r) t
+WHERE row <> order_number;
+row order_number
+14 51
+DROP TABLE sales_documents;
+#
+# MDEV-12845: pushdown from merged derived using equalities
+#
+create table t1 (a int);
+insert into t1 values
+(4), (8), (5), (3), (10), (2), (7);
+create table t2 (b int, c int);
+insert into t2 values
+(2,1), (5,2), (2,2), (4,1), (4,3),
+(5,3), (2,4), (4,6), (2,1);
+create view v1 as
+select b, sum(c) as s from t2 group by b;
+create view v2 as
+select distinct b, c from t2;
+create view v3 as
+select b, max(c) as m from t2 group by b;
+select b
+from ( select t1.a, v1.b, v1.s from t1, v1 where t1.a = v1.b ) as t
+where b > 2;
+b
+4
+5
+explain format=json select b
+from ( select t1.a, v1.b, v1.s from t1, v1 where t1.a = v1.b ) as t
+where b > 2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t1.a > 2 and t1.a is not null"
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "filesort": {
+ "sort_key": "t2.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b > 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+select a
+from ( select t1.a, v1.b, v1.s from t1, v1 where t1.a = v1.b ) as t
+where a > 2;
+a
+4
+5
+explain format=json select a
+from ( select t1.a, v1.b, v1.s from t1, v1 where t1.a = v1.b ) as t
+where a > 2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t1.a > 2 and t1.a is not null"
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "filesort": {
+ "sort_key": "t2.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b > 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+select a
+from ( select t1.a, v2.b, v2.c from t1, v2 where t1.a = v2.b ) as t
+where a > 2;
+a
+4
+4
+4
+5
+5
+explain format=json select a
+from ( select t1.a, v2.b, v2.c from t1, v2 where t1.a = v2.b ) as t
+where a > 2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t1.a > 2 and t1.a is not null"
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b > 2"
+ }
+ }
+ }
+ }
+ }
+ }
+}
+select a
+from ( select t1.a, v3.b, v3.m from t1, v3 where t1.a = v3.m ) as t
+where a > 2;
+a
+4
+3
+explain format=json select a
+from ( select t1.a, v3.b, v3.m from t1, v3 where t1.a = v3.m ) as t
+where a > 2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t1.a > 2 and t1.a is not null"
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["m"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "m > 2",
+ "filesort": {
+ "sort_key": "t2.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1,v2,v3;
+drop table t1,t2;
+#
+# MDEV-13166: pushdown from merged derived
+#
+CREATE TABLE t1 (i int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE VIEW v1 AS SELECT MAX(i) AS f FROM t1;
+SELECT * FROM ( SELECT * FROM v1 ) AS sq WHERE f > 0;
+f
+2
+explain format=json SELECT * FROM ( SELECT * FROM v1 ) AS sq WHERE f > 0;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.f > 0",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "f > 0",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v1;
+DROP TABLE t1;
+#
+# MDEV-13193: pushdown of equality extracted from multiple equality
+#
+CREATE TABLE t1 (i1 int, KEY(i1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (2),(4);
+CREATE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
+SELECT * FROM t1, ( SELECT * FROM v2 ) AS sq
+WHERE i1 = 1 AND ( i1 = i2 OR i1 = 2 );
+i1 i2
+explain format=json SELECT * FROM t1, ( SELECT * FROM v2 ) AS sq
+WHERE i1 = 1 AND ( i1 = i2 OR i1 = 2 );
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["i1"],
+ "key": "i1",
+ "key_length": "5",
+ "used_key_parts": ["i1"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100,
+ "using_index": true
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.i2 = 1"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.i2 = 1"
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v2;
+DROP TABLE t1,t2;
+#
+# MDEV-14237: derived with regexp_substr() in select list
+#
+create table t1 (a char(8));
+insert into t1 values ('b'), ('a'), ('xx');
+select *
+from ( select distinct regexp_substr(t1.a,'^[A-Za-z]+') as f from t1) as t
+where t.f = 'a' or t.f = 'b';
+f
+b
+a
+explain format=json select *
+from ( select distinct regexp_substr(t1.a,'^[A-Za-z]+') as f from t1) as t
+where t.f = 'a' or t.f = 'b';
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t.f = 'a' or t.f = 'b'",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop table t1;
+#
+# MDEV-13454: consequence of mdev-14368 fixed for 5.5
+#
+SET sql_mode = 'ONLY_FULL_GROUP_BY';
+create table t1 (id int, id2 int);
+insert into t1 values (1,1),(2,3),(3,4),(7,2);
+create table t2(id2 int);
+insert t2 values (1),(2),(3);
+SELECT * FROM t1
+LEFT OUTER JOIN
+(SELECT id2, COUNT(*) as ct FROM t2 GROUP BY id2) vc USING (id2)
+WHERE (vc.ct>0);
+id2 id ct
+1 1 1
+3 2 1
+2 7 1
+EXPLAIN FORMAT=JSON SELECT * FROM t1
+LEFT OUTER JOIN
+(SELECT id2, COUNT(*) as ct FROM t2 GROUP BY id2) vc USING (id2)
+WHERE (vc.ct>0);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "vc.ct > 0",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "ct > 0",
+ "filesort": {
+ "sort_key": "t2.id2",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 4,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t1.id2 = vc.id2"
+ }
+ }
+}
+DROP TABLE t1,t2;
+SET sql_mode = DEFAULT;
+#
+# MDEV-15579: incorrect removal of sub-formulas to be pushed
+# into WHERE of materialized derived with GROUP BY
+#
+CREATE TABLE t1 (a INT, b INT, c INT, d INT);
+CREATE TABLE t2 (x INT, y INT, z INT);
+INSERT INTO t1 VALUES (1,1,66,1), (1,1,56,2), (3,2,42,3);
+INSERT INTO t2 VALUES (1,1,66), (1,12,32);
+SELECT *
+FROM t2,
+(
+SELECT a, b, max(c) AS max_c
+FROM t1
+GROUP BY a
+HAVING max_c > 37
+) AS v1
+WHERE (v1.a=1) AND (v1.b=v1.a) AND
+(v1.a=t2.x) AND (v1.max_c>30);
+x y z a b max_c
+1 1 66 1 1 66
+1 12 32 1 1 66
+EXPLAIN SELECT *
+FROM t2,
+(
+SELECT a, b, max(c) AS max_c
+FROM t1
+GROUP BY a
+HAVING max_c > 37
+) AS v1
+WHERE (v1.a=1) AND (v1.b=v1.a) AND
+(v1.a=t2.x) AND (v1.max_c>30);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 3 Using where
+EXPLAIN FORMAT=JSON SELECT *
+FROM t2,
+(
+SELECT a, b, max(c) AS max_c
+FROM t1
+GROUP BY a
+HAVING max_c > 37
+) AS v1
+WHERE (v1.a=1) AND (v1.b=v1.a) AND
+(v1.a=t2.x) AND (v1.max_c>30);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.x = 1"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.a = 1 and v1.b = 1 and v1.max_c > 30"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c > 37 and max_c > 30 and t1.b = 1",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1"
+ }
+ }
+ }
+ }
+ }
+}
+SELECT *
+FROM t2,
+(
+SELECT a, b, d, max(c) AS max_c
+FROM t1
+GROUP BY a,d
+HAVING max_c > 37
+) AS v1
+WHERE (v1.a=1) AND (v1.b=v1.a) AND (v1.b=v1.d) AND
+(v1.a=t2.x) AND (v1.max_c>30);
+x y z a b d max_c
+1 1 66 1 1 1 66
+1 12 32 1 1 1 66
+EXPLAIN SELECT *
+FROM t2,
+(
+SELECT a, b, d, max(c) AS max_c
+FROM t1
+GROUP BY a,d
+HAVING max_c > 37
+) AS v1
+WHERE (v1.a=1) AND (v1.b=v1.a) AND (v1.b=v1.d) AND
+(v1.a=t2.x) AND (v1.max_c>30);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 3 Using where
+EXPLAIN FORMAT=JSON SELECT *
+FROM t2,
+(
+SELECT a, b, d, max(c) AS max_c
+FROM t1
+GROUP BY a,d
+HAVING max_c > 37
+) AS v1
+WHERE (v1.a=1) AND (v1.b=v1.a) AND (v1.b=v1.d) AND
+(v1.a=t2.x) AND (v1.max_c>30);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.x = 1"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.a = 1 and v1.b = 1 and v1.d = 1 and v1.max_c > 30"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "max_c > 37 and max_c > 30 and t1.b = 1",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.a = 1 and t1.d = 1"
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1,t2;
+#
+# MDEV-15765: pushing condition with temporal constants
+# into constant tables
+#
+select * from (select date('2018-01-01') as d
+union all
+select date('2018-01-01') as d) as t
+where t.d between date ('2017-01-01') and date ('2019-01-01');
+d
+2018-01-01
+2018-01-01
+select * from (select date('2018-01-01') as d) as t
+where t.d between date ('2017-01-01') and date ('2019-01-01');
+d
+2018-01-01
+#
+# MDEV-16088: pushdown into derived defined in the IN subquery
+#
+CREATE TABLE t1 (a INT, b INT);
+CREATE TABLE t2 (e INT, f INT, g INT);
+INSERT INTO t1 VALUES (1,14),(2,13),(1,19),(2,32),(3,24);
+INSERT INTO t2 VALUES (1,19,2),(3,24,1),(1,12,2),(3,11,3),(2,32,1);
+SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e,d_tab.max_f
+FROM (
+SELECT t2.e, MAX(t2.f) AS max_f
+FROM t2
+GROUP BY t2.e
+HAVING max_f>18
+) as d_tab
+WHERE d_tab.e>1
+)
+;
+a b
+2 32
+3 24
+EXPLAIN SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e,d_tab.max_f
+FROM (
+SELECT t2.e, MAX(t2.f) AS max_f
+FROM t2
+GROUP BY t2.e
+HAVING max_f>18
+) as d_tab
+WHERE d_tab.e>1
+)
+;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 5
+1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1
+2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 5 Using where
+3 DERIVED t2 ALL NULL NULL NULL NULL 5 Using where; Using temporary; Using filesort
+EXPLAIN FORMAT=JSON SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e,d_tab.max_f
+FROM (
+SELECT t2.e, MAX(t2.f) AS max_f
+FROM t2
+GROUP BY t2.e
+HAVING max_f>18
+) as d_tab
+WHERE d_tab.e>1
+)
+;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "<subquery2>",
+ "access_type": "eq_ref",
+ "possible_keys": ["distinct_key"],
+ "key": "distinct_key",
+ "key_length": "8",
+ "used_key_parts": ["e", "max_f"],
+ "ref": ["func", "func"],
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "d_tab.e > 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_f > 18",
+ "filesort": {
+ "sort_key": "t2.e",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "t2.e > 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e,d_tab.max_f
+FROM (
+SELECT t2.e, MAX(t2.f) AS max_f
+FROM t2
+GROUP BY t2.e
+HAVING max_f>18
+) as d_tab
+WHERE d_tab.max_f<25
+)
+;
+a b
+1 19
+3 24
+EXPLAIN SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e,d_tab.max_f
+FROM (
+SELECT t2.e, MAX(t2.f) AS max_f
+FROM t2
+GROUP BY t2.e
+HAVING max_f>18
+) as d_tab
+WHERE d_tab.max_f<25
+)
+;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 5
+1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1
+2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 5 Using where
+3 DERIVED t2 ALL NULL NULL NULL NULL 5 Using temporary; Using filesort
+EXPLAIN FORMAT=JSON SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e,d_tab.max_f
+FROM (
+SELECT t2.e, MAX(t2.f) AS max_f
+FROM t2
+GROUP BY t2.e
+HAVING max_f>18
+) as d_tab
+WHERE d_tab.max_f<25
+)
+;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "<subquery2>",
+ "access_type": "eq_ref",
+ "possible_keys": ["distinct_key"],
+ "key": "distinct_key",
+ "key_length": "8",
+ "used_key_parts": ["e", "max_f"],
+ "ref": ["func", "func"],
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "d_tab.max_f < 25",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_f > 18 and max_f < 25",
+ "filesort": {
+ "sort_key": "t2.e",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e, MAX(d_tab.max_f) AS max_f
+FROM (
+SELECT t2.e, MAX(t2.f) as max_f, t2.g
+FROM t2
+GROUP BY t2.e
+) as d_tab
+WHERE d_tab.e>1
+GROUP BY d_tab.g
+)
+;
+a b
+2 32
+EXPLAIN SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e, MAX(d_tab.max_f) AS max_f
+FROM (
+SELECT t2.e, MAX(t2.f) as max_f, t2.g
+FROM t2
+GROUP BY t2.e
+) as d_tab
+WHERE d_tab.e>1
+GROUP BY d_tab.g
+)
+;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 5 Using where
+1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.b 1
+2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 5 Using where; Using temporary
+3 DERIVED t2 ALL NULL NULL NULL NULL 5 Using where; Using temporary; Using filesort
+EXPLAIN FORMAT=JSON SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e, MAX(d_tab.max_f) AS max_f
+FROM (
+SELECT t2.e, MAX(t2.f) as max_f, t2.g
+FROM t2
+GROUP BY t2.e
+) as d_tab
+WHERE d_tab.e>1
+GROUP BY d_tab.g
+)
+;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "t1.a is not null and t1.b is not null"
+ },
+ "table": {
+ "table_name": "<subquery2>",
+ "access_type": "eq_ref",
+ "possible_keys": ["distinct_key"],
+ "key": "distinct_key",
+ "key_length": "8",
+ "used_key_parts": ["e", "max_f"],
+ "ref": ["test.t1.a", "test.t1.b"],
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 2,
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "d_tab.e > 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "filesort": {
+ "sort_key": "t2.e",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "t2.e > 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e, MAX(d_tab.max_f) AS max_f
+FROM (
+SELECT t2.e, MAX(t2.f) as max_f, t2.g
+FROM t2
+GROUP BY t2.e
+) as d_tab
+WHERE d_tab.max_f>20
+GROUP BY d_tab.g
+)
+;
+a b
+2 32
+EXPLAIN SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e, MAX(d_tab.max_f) AS max_f
+FROM (
+SELECT t2.e, MAX(t2.f) as max_f, t2.g
+FROM t2
+GROUP BY t2.e
+) as d_tab
+WHERE d_tab.max_f>20
+GROUP BY d_tab.g
+)
+;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 5 Using where
+1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 test.t1.a,test.t1.b 1
+2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 5 Using where; Using temporary
+3 DERIVED t2 ALL NULL NULL NULL NULL 5 Using temporary; Using filesort
+EXPLAIN FORMAT=JSON SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+(
+SELECT d_tab.e, MAX(d_tab.max_f) AS max_f
+FROM (
+SELECT t2.e, MAX(t2.f) as max_f, t2.g
+FROM t2
+GROUP BY t2.e
+) as d_tab
+WHERE d_tab.max_f>20
+GROUP BY d_tab.g
+)
+;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "t1.a is not null and t1.b is not null"
+ },
+ "table": {
+ "table_name": "<subquery2>",
+ "access_type": "eq_ref",
+ "possible_keys": ["distinct_key"],
+ "key": "distinct_key",
+ "key_length": "8",
+ "used_key_parts": ["e", "max_f"],
+ "ref": ["test.t1.a", "test.t1.b"],
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 2,
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "d_tab.max_f > 20",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "max_f > 20",
+ "filesort": {
+ "sort_key": "t2.e",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1,t2;
+#
+# MDEV-15765: pushing condition with IN subquery defined with constants
+# using substitution
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (1),(2);
+SELECT * FROM
+(
+SELECT DISTINCT * FROM t1
+) der_tab
+WHERE (a>0 AND a<2 OR a IN (2,3)) AND
+(a=2 OR 0);
+a
+2
+DROP TABLE t1;
+#
+# MDEV-16386: pushing condition into the HAVING clause when ambiguous
+# fields warning appears
+#
+CREATE TABLE t1 (a INT, b INT);
+INSERT INTO t1 VALUES (1,2),(2,3),(3,4);
+SELECT * FROM
+(
+SELECT t1.b AS a
+FROM t1
+GROUP BY t1.a
+) dt
+WHERE (dt.a=2);
+a
+2
+EXPLAIN FORMAT=JSON SELECT * FROM
+(
+SELECT t1.b AS a
+FROM t1
+GROUP BY t1.a
+) dt
+WHERE (dt.a=2);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "dt.a = 2",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "a = 2",
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * FROM
+(
+SELECT t1.b AS a
+FROM t1
+GROUP BY t1.a
+HAVING (t1.a<3)
+) dt
+WHERE (dt.a>1);
+a
+2
+3
+EXPLAIN FORMAT=JSON SELECT * FROM
+(
+SELECT t1.b AS a
+FROM t1
+GROUP BY t1.a
+HAVING (t1.a<3)
+) dt
+WHERE (dt.a>1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "dt.a > 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "t1.a < 3 and a > 1",
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * FROM
+(
+SELECT 'ab' AS a
+FROM t1
+GROUP BY t1.a
+) dt
+WHERE (dt.a='ab');
+a
+ab
+ab
+ab
+EXPLAIN FORMAT=JSON SELECT * FROM
+(
+SELECT 'ab' AS a
+FROM t1
+GROUP BY t1.a
+) dt
+WHERE (dt.a='ab');
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "dt.a = 'ab'",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * FROM
+(
+SELECT 1 AS a
+FROM t1
+GROUP BY t1.a
+) dt
+WHERE (dt.a=1);
+a
+1
+1
+1
+EXPLAIN FORMAT=JSON SELECT * FROM
+(
+SELECT 1 AS a
+FROM t1
+GROUP BY t1.a
+) dt
+WHERE (dt.a=1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "dt.a = 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1;
+#
+# MDEV-16517: pushdown condition with the IN predicate defined
+# with non-constant values
+#
+CREATE TABLE t1 (a INT, b INT);
+INSERT INTO t1 VALUES (1,2),(1,3);
+SELECT * FROM
+(
+SELECT t1.a
+FROM t1
+WHERE 1 IN (0,t1.a)
+GROUP BY t1.a
+) AS dt1
+JOIN
+(
+SELECT t1.a
+FROM t1
+WHERE 1 IN (0,t1.a)
+) AS dt2
+ON dt1.a = dt2.a;
+a a
+1 1
+1 1
+EXPLAIN FORMAT=JSON SELECT * FROM
+(
+SELECT t1.a
+FROM t1
+WHERE 1 IN (0,t1.a)
+GROUP BY t1.a
+) AS dt1
+JOIN
+(
+SELECT t1.a
+FROM t1
+WHERE 1 IN (0,t1.a)
+) AS dt2
+ON dt1.a = dt2.a;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "1 in (0,dt1.a)",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "1 in (0,t1.a) and 1 in (0,t1.a)"
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t1.a = dt1.a"
+ }
+ }
+}
+SELECT * FROM
+(
+SELECT t1.a,MAX(t1.b)
+FROM t1
+GROUP BY t1.a
+) AS dt, t1
+WHERE dt.a=t1.a AND dt.a IN (1,t1.a);
+a MAX(t1.b) a b
+1 3 1 2
+1 3 1 3
+EXPLAIN FORMAT=JSON SELECT * FROM
+(
+SELECT t1.a,MAX(t1.b)
+FROM t1
+GROUP BY t1.a
+) AS dt, t1
+WHERE dt.a=t1.a AND dt.a IN (1,t1.a);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "dt.a in (1,dt.a)",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.a in (1,t1.a)"
+ }
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t1.a = dt.a"
+ }
+ }
+}
+DROP TABLE t1;
+#
+# MDEV-15087: error from inexpensive subquery before check
+# for condition pushdown into derived
+#
+CREATE TABLE t1 (i1 int, v1 varchar(1));
+INSERT INTO t1 VALUES (7,'x');
+CREATE TABLE t2 (i1 int);
+INSERT INTO t2 VALUES (8);
+CREATE TABLE t3 (i1 int ,v1 varchar(1), v2 varchar(1));
+INSERT INTO t3 VALUES (4, 'v','v'),(62,'v','k'),(7, 'n', NULL);
+SELECT 1
+FROM (t1 AS a1
+JOIN (((SELECT DISTINCT t3.*
+FROM t3) AS a2
+JOIN t1 ON (t1.v1 = a2.v2))) ON (t1.v1 = a2.v1))
+WHERE (SELECT BIT_COUNT(t2.i1)
+FROM (t2 JOIN t3)) IS NULL;
+ERROR 21000: Subquery returns more than 1 row
+DROP TABLE t1, t2, t3;
+#
+# MDEV-16614 signal 7 after calling stored procedure, that uses regexp
+#
+CREATE PROCEDURE p1(m1 varchar(5), m2 varchar(5))
+BEGIN
+SELECT a FROM
+(SELECT "aa" a) t
+JOIN (SELECT "aa" b) t1 on t.a=t1.b
+WHERE t.a regexp m1 and t1.b regexp m2
+GROUP BY a;
+END$$
+CALL p1('a','a');
+a
+aa
+DROP PROCEDURE p1;
+CREATE PROCEDURE p1(m1 varchar(5))
+BEGIN
+SELECT a FROM (SELECT "aa" a) t WHERE t.a regexp m1;
+END$$
+CALL p1('a');
+a
+aa
+DROP PROCEDURE p1;
+SELECT a FROM (SELECT "aa" a) t WHERE REGEXP_INSTR(t.a, (SELECT MAX('aa') FROM DUAL LIMIT 1));
+a
+aa
+CREATE OR REPLACE FUNCTION f1(a VARCHAR(10), b VARCHAR(10)) RETURNS INT
+BEGIN
+RETURN 1;
+END;$$
+CREATE OR REPLACE PROCEDURE p1(m1 varchar(5))
+BEGIN
+SELECT a FROM (SELECT "aa" a) t WHERE f1(t.a, m1);
+END$$
+CALL p1('a');
+a
+aa
+DROP PROCEDURE p1;
+DROP FUNCTION f1;
+CREATE OR REPLACE FUNCTION f1(a VARCHAR(10), b VARCHAR(10)) RETURNS INT
+BEGIN
+RETURN 1;
+END;$$
+SELECT a FROM (SELECT "aa" a) t WHERE f1(t.a, (SELECT MAX('aa') FROM DUAL LIMIT 1));
+a
+aa
+DROP FUNCTION f1;
+#
+# MDEV-17011: condition pushdown into materialized derived used
+# in INSERT SELECT, multi-table UPDATE and DELETE
+#
+CREATE TABLE t1 (a int ,b int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES
+(1, 1), (1, 2), (2, 1), (2, 2), (3,1), (3,3), (4,2);
+CREATE TABLE t2 (a int) ENGINE MYISAM;
+INSERT INTO t2 VALUES
+(3), (7), (1), (4), (1);
+CREATE TABLE t3 (a int, b int) ENGINE MYISAM;
+EXPLAIN FORMAT=JSON INSERT INTO t3
+SELECT * FROM (SELECT a, count(*) as c FROM t1 GROUP BY a) t WHERE a<=2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t.a <= 2",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t1.a <= 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+INSERT INTO t3
+SELECT * FROM (SELECT a, count(*) as c FROM t1 GROUP BY a) t WHERE a<=2;
+SELECT * FROM t3;
+a b
+1 2
+2 2
+EXPLAIN FORMAT=JSON UPDATE t2, (SELECT a, count(*) as c FROM t1 GROUP BY a) t SET t2.a=t.c+10
+WHERE t2.a= t.c and t.a>=3;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "8",
+ "used_key_parts": ["c"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.a = t.c and t.a >= 3",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t1.a >= 3"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+UPDATE t2, (SELECT a, count(*) as c FROM t1 GROUP BY a) t SET t2.a=t.c+10
+WHERE t2.a= t.c and t.a>=3;
+SELECT * FROM t2;
+a
+3
+7
+11
+4
+11
+EXPLAIN FORMAT=JSON DELETE t2 FROM t2, (SELECT a, count(*) as c FROM t1 GROUP BY a) t
+WHERE t2.a= t.c+9 and t.a=2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t.a = 2 and t2.a = t.c + 9",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 7,
+ "filtered": 100,
+ "attached_condition": "t1.a = 2"
+ }
+ }
+ }
+ }
+ }
+}
+DELETE t2 FROM t2, (SELECT a, count(*) as c FROM t1 GROUP BY a) t
+WHERE t2.a= t.c+9 and t.a=2;
+SELECT * FROM t2;
+a
+3
+7
+4
+DROP TABLE t1,t2,t3;
+#
+# MDEV-16765: pushdown condition with the CASE structure
+# defined with Item_cond item
+#
+CREATE TABLE t1(a INT, b INT);
+INSERT INTO t1 VALUES (1,2), (3,4), (2,3);
+SELECT *
+FROM
+(
+SELECT CASE WHEN ((tab2.max_a=1) OR (tab2.max_a=2))
+THEN 1 ELSE 0 END AS max_a,b
+FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+max_a b
+1 2
+1 3
+EXPLAIN FORMAT=JSON SELECT *
+FROM
+(
+SELECT CASE WHEN ((tab2.max_a=1) OR (tab2.max_a=2))
+THEN 1 ELSE 0 END AS max_a,b
+FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "case when tab2.max_a = 1 or tab2.max_a = 2 then 1 else 0 end = 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "case when max_a = 1 or max_a = 2 then 1 else 0 end = 1",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT *
+FROM
+(
+SELECT CASE WHEN ((tab2.max_a=1) OR ((tab2.max_a>2) AND (tab2.max_a<4)))
+THEN 1 ELSE 0 END AS max_a,b
+FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+max_a b
+1 2
+1 4
+EXPLAIN FORMAT=JSON SELECT *
+FROM
+(
+SELECT CASE WHEN ((tab2.max_a=1) OR ((tab2.max_a>2) AND (tab2.max_a<4)))
+THEN 1 ELSE 0 END AS max_a,b
+FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "case when tab2.max_a = 1 or tab2.max_a > 2 and tab2.max_a < 4 then 1 else 0 end = 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "case when max_a = 1 or max_a > 2 and max_a < 4 then 1 else 0 end = 1",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT *
+FROM
+(
+SELECT CASE WHEN ((tab2.max_a>1) AND ((tab2.max_a=2) OR (tab2.max_a>2)))
+THEN 1 ELSE 0 END AS max_a,b
+FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+max_a b
+1 3
+1 4
+EXPLAIN FORMAT=JSON SELECT *
+FROM
+(
+SELECT CASE WHEN ((tab2.max_a>1) AND ((tab2.max_a=2) OR (tab2.max_a>2)))
+THEN 1 ELSE 0 END AS max_a,b
+FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "case when tab2.max_a > 1 and (tab2.max_a = 2 or tab2.max_a > 2) then 1 else 0 end = 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "case when max_a > 1 and (max_a = 2 or max_a > 2) then 1 else 0 end = 1",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT *
+FROM
+(
+SELECT CASE WHEN ((tab2.b=2) OR (tab2.b=4))
+THEN 1 ELSE 0 END AS max_a,b
+FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+max_a b
+1 2
+1 4
+EXPLAIN FORMAT=JSON SELECT *
+FROM
+(
+SELECT CASE WHEN ((tab2.b=2) OR (tab2.b=4))
+THEN 1 ELSE 0 END AS max_a,b
+FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "case when tab2.b = 2 or tab2.b = 4 then 1 else 0 end = 1",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "case when t1.b = 2 or t1.b = 4 then 1 else 0 end = 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1;
+#
+# MDEV-16803: pushdown condition with IN predicate in the derived table
+# defined with several SELECT statements
+#
+CREATE TABLE t1 (a INT, b INT);
+INSERT INTO t1 VALUES (1,2),(3,2),(1,1);
+SELECT * FROM
+(
+SELECT a,b,1 as c
+FROM t1
+UNION ALL
+SELECT a,b,2 as c
+FROM t1
+) AS tab
+WHERE ((a,b) IN ((1,2),(3,2)));
+a b c
+1 2 1
+3 2 1
+1 2 2
+3 2 2
+DROP TABLE t1;
+#
+# MDEV-17354: INSERT SELECT with condition pushdown into derived
+#
+CREATE TABLE t1 (f INT NOT NULL);
+INSERT INTO t1 VALUES (3), (7), (3);
+CREATE ALGORITHM= TEMPTABLE VIEW v1 AS SELECT * FROM ( SELECT * FROM t1 ) AS sq;
+INSERT INTO t1
+SELECT * FROM ( SELECT t1.f FROM v1 JOIN t1 ) AS t WHERE f IS NOT NULL;
+EXPLAIN INSERT INTO t1
+SELECT * FROM ( SELECT t1.f FROM v1 JOIN t1 ) AS t WHERE f IS NOT NULL;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 144 Using where
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 12
+2 DERIVED t1 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join)
+3 DERIVED t1 ALL NULL NULL NULL NULL 12
+EXPLAIN FORMAT=JSON INSERT INTO t1
+SELECT * FROM ( SELECT t1.f FROM v1 JOIN t1 ) AS t WHERE f IS NOT NULL;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 144,
+ "filtered": 100,
+ "attached_condition": "t.f is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 12,
+ "filtered": 100,
+ "attached_condition": "t1.f is not null"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL"
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * FROM t1;
+f
+3
+7
+3
+3
+3
+3
+7
+7
+7
+3
+3
+3
+DELETE FROM t1;
+INSERT INTO t1 VALUES (3), (7), (3);
+INSERT INTO t1
+SELECT * FROM ( SELECT t1.f FROM v1 JOIN t1 ON v1.f=t1.f) AS t
+WHERE f IS NOT NULL;
+EXPLAIN FORMAT=JSON INSERT INTO t1
+SELECT * FROM ( SELECT t1.f FROM v1 JOIN t1 ON v1.f=t1.f) AS t
+WHERE f IS NOT NULL;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 16,
+ "filtered": 100,
+ "attached_condition": "t.f is not null",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 8,
+ "filtered": 100,
+ "attached_condition": "t1.f is not null"
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "4",
+ "used_key_parts": ["f"],
+ "ref": ["test.t1.f"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 8,
+ "filtered": 100,
+ "attached_condition": "t1.f is not null"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * FROM t1;
+f
+3
+7
+3
+3
+3
+7
+3
+3
+DROP VIEW v1;
+DROP TABLE t1;
+#
+# MDEV-17574: pushdown into derived from mergeable view
+# used in multi-table UPDATE
+# pushdown into materialized derived from mergeable view
+# used in SELECT
+#
+CREATE TABLE t1 (f1 text, f2 int);
+INSERT INTO t1 VALUES ('x',1), ('y',2);
+CREATE VIEW v1 AS SELECT f2 FROM ( SELECT f2 FROM t1 ) AS t;
+UPDATE v1, t1 SET t1.f1 = 'z' WHERE v1.f2 < 2 AND t1.f2 = v1.f2;
+EXPLAIN FORMAT=JSON UPDATE v1, t1 SET t1.f1 = 'z' WHERE v1.f2 < 2 AND t1.f2 = v1.f2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t.f2 < 2",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.f2 < 2"
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.f2 = t.f2"
+ }
+ }
+}
+SELECT * FROM t1;
+f1 f2
+z 1
+y 2
+CREATE VIEW v2 AS SELECT f2 FROM ( SELECT DISTINCT f2 FROM t1 ) AS t;
+SELECT * FROM v2, t1 WHERE v2.f2 < 2 AND t1.f2 = v2.f2;
+f2 f1 f2
+1 z 1
+EXPLAIN FORMAT=JSON SELECT * FROM v2, t1 WHERE v2.f2 < 2 AND t1.f2 = v2.f2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t.f2 < 2",
+ "materialized": {
+ "query_block": {
+ "select_id": 3,
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.f2 < 2"
+ }
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t1.f2 = t.f2"
+ }
+ }
+}
+DROP VIEW v1,v2;
+DROP TABLE t1;
+#
+# MDEV-18383: pushdown condition with the IF structure
+# defined with Item_cond item
+#
+CREATE TABLE t1(a INT, b INT);
+CREATE TABLE t2(c INT, d INT);
+INSERT INTO t1 VALUES (1,2),(3,4),(5,6);
+INSERT INTO t2 VALUES (1,3),(3,7),(5,1);
+SELECT *
+FROM t1,
+(
+SELECT MAX(d) AS max_d,c
+FROM t2
+GROUP BY c
+) AS tab
+WHERE t1.a=tab.c AND
+IF(2,t1.a=1 OR t1.b>5,1=1);
+a b max_d c
+1 2 3 1
+5 6 1 5
+DROP TABLE t1,t2;
+#
+# MDEV-19139: pushdown condition with Item_func_set_user_var
+#
+CREATE TABLE t1 (a INT, b INT);
+CREATE VIEW v1 AS SELECT a, MAX(b) FROM t1 GROUP BY a;
+SELECT * FROM (SELECT 1 FROM v1 UNION (SELECT 1 FROM v1 WHERE @a := uuid())) dt;
+1
+EXPLAIN FORMAT=JSON
+SELECT * FROM (SELECT 1 FROM v1 UNION (SELECT 1 FROM v1 WHERE @a := uuid())) dt;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "message": "no matching row in const table"
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "message": "no matching row in const table"
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+DROP TABLE t1;
+DROP VIEW v1;
+#
+# MDEV-21388 Wrong result of DAYNAME()=xxx in combination with condition_pushdown_for_derived=on
+#
+CREATE TABLE t1 (a INT, b DATE, c INT);
+INSERT INTO t1 VALUES
+(1,'2001-01-21',345),
+(6,'2001-01-20',315),
+(6,'2001-01-20',214);
+CREATE TABLE t2 (a INT, b INT);
+INSERT INTO t2 VALUES (2,19), (7,20);
+CREATE VIEW v1 AS SELECT a, b, max(c) AS max_c FROM t1
+GROUP BY a,b HAVING max_c < 707;
+SELECT *, dayname(v1.b) FROM v1,t2 WHERE (v1.max_c>214) AND (t2.a>v1.a);
+a b max_c a b dayname(v1.b)
+1 2001-01-21 345 2 19 Sunday
+1 2001-01-21 345 7 20 Sunday
+6 2001-01-20 315 7 20 Saturday
+SET optimizer_switch='condition_pushdown_for_derived=off';
+SELECT *, dayname(v1.b) FROM v1,t2 WHERE (v1.max_c>214) AND (t2.a>v1.a) AND dayname(v1.b)='Sunday';
+a b max_c a b dayname(v1.b)
+1 2001-01-21 345 2 19 Sunday
+1 2001-01-21 345 7 20 Sunday
+SET optimizer_switch='condition_pushdown_for_derived=on';
+SELECT *, dayname(v1.b) FROM v1,t2 WHERE (v1.max_c>214) AND (t2.a>v1.a) AND dayname(v1.b)='Sunday';
+a b max_c a b dayname(v1.b)
+1 2001-01-21 345 2 19 Sunday
+1 2001-01-21 345 7 20 Sunday
+DROP VIEW v1;
+DROP TABLE t1, t2;
+SET optimizer_switch=DEFAULT;
+#
+# MDEV-17177: an attempt to push down IN predicate when one of
+# the arguments is too complex to be cloned
+#
+CREATE TABLE t1 (a VARCHAR(8));
+INSERT INTO t1 VALUES ('abc'),('def');
+CREATE VIEW v1 AS SELECT * FROM t1 GROUP BY a;
+SELECT * FROM v1 WHERE IF( a REGEXP 'def', 'foo', a ) IN ('abc', 'foobar');
+a
+abc
+DROP VIEW v1;
+DROP TABLE t1;
+#
+# MDEV-19179: pushdown into UNION of aggregation selects whose
+# corresponding columns have different names
+#
+create table t1 (a int);
+insert into t1 values (3), (7), (1);
+select *
+from (select min(a) as x from t1 union all select max(a) as y from t1) t
+where x>0;
+x
+1
+7
+explain extended select *
+from (select min(a) as x from t1 union all select max(a) as y from t1) t
+where x>0;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 100.00 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 3 100.00
+3 UNION t1 ALL NULL NULL NULL NULL 3 100.00
+Warnings:
+Note 1003 /* select#1 */ select `t`.`x` AS `x` from (/* select#2 */ select min(`test`.`t1`.`a`) AS `x` from `test`.`t1` having `x` > 0 union all /* select#3 */ select max(`test`.`t1`.`a`) AS `x` from `test`.`t1` having `x` > 0) `t` where `t`.`x` > 0
+prepare stmt from "select *
+from (select min(a) as x from t1 union all select max(a) as y from t1) t
+where x>0";
+execute stmt;
+x
+1
+7
+execute stmt;
+x
+1
+7
+deallocate prepare stmt;
+create view v1(m) as
+select min(a) as x from t1 union all select max(a) as y from t1;
+select * from v1 where m > 0;
+m
+1
+7
+drop view v1;
+drop table t1;
+#
+# MDEV-25635: pushdown into grouping view using aggregate functions
+# with constant arguments via a mergeable derived table
+#
+create table t1 (a int);
+insert into t1 values (3), (7), (1), (3), (7), (7), (3);
+create view v1 as select a, sum(1) as f, sum(1) as g from t1 group by a;
+select * from v1;
+a f g
+1 1 1
+3 3 3
+7 3 3
+select * from (select * from v1) as dt where a=f and a=g;
+a f g
+1 1 1
+3 3 3
+explain extended select * from (select * from v1) as dt where a=f and a=g;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 7 100.00 Using where
+3 DERIVED t1 ALL NULL NULL NULL NULL 7 100.00 Using temporary; Using filesort
+Warnings:
+Note 1003 /* select#1 */ select `v1`.`a` AS `a`,`v1`.`f` AS `f`,`v1`.`g` AS `g` from `test`.`v1` where `v1`.`a` = `v1`.`f` and `v1`.`a` = `v1`.`g`
+create view v2 as select a, min(1) as f, min(1) as g from t1 group by a;
+select * from v2;
+a f g
+1 1 1
+3 1 1
+7 1 1
+select * from (select * from v2) as dt where a=f and a=g;
+a f g
+1 1 1
+explain extended select * from (select * from v2) as dt where a=f and a=g;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 7 100.00 Using where
+3 DERIVED t1 ALL NULL NULL NULL NULL 7 100.00 Using temporary; Using filesort
+Warnings:
+Note 1003 /* select#1 */ select `v2`.`a` AS `a`,`v2`.`f` AS `f`,`v2`.`g` AS `g` from `test`.`v2` where `v2`.`a` = `v2`.`f` and `v2`.`a` = `v2`.`g`
+drop view v1,v2;
+drop table t1;
++#
++# MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
++#
++create function f1(a int) returns int DETERMINISTIC return (a+1);
++create table t1 (
++pk int primary key,
++a int,
++b int,
++key(a)
++);
++create table t2(a int);
++insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
++create table t3(a int);
++insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
++insert into t1 select a,a,a from t3;
++create view v1 as
++select
++t1.a as col1,
++f1(t1.b) as col2
++from
++t1;
++create view v2 as
++select
++t1.a as col1,
++f1(t1.b) as col2
++from
++t1;
++create view v3 as
++select col2, col1 from v1
++union all
++select col2, col1 from v2;
++explain select * from v3 where col1=123;
++id select_type table type possible_keys key key_len ref rows Extra
++1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using where
++2 DERIVED t1 ref a a 5 const 1
++3 UNION t1 ref a a 5 const 1
++# This must use ref accesses for reading table t1, not full scans:
++explain format=json
++select * from v3 where col1=123 and col2=321;
++EXPLAIN
++{
++ "query_block": {
++ "select_id": 1,
++ "table": {
++ "table_name": "<derived2>",
++ "access_type": "ALL",
++ "rows": 2,
++ "filtered": 100,
++ "attached_condition": "v3.col1 = 123 and v3.col2 = 321",
++ "materialized": {
++ "query_block": {
++ "union_result": {
++ "table_name": "<union2,3>",
++ "access_type": "ALL",
++ "query_specifications": [
++ {
++ "query_block": {
++ "select_id": 2,
++ "table": {
++ "table_name": "t1",
++ "access_type": "ref",
++ "possible_keys": ["a"],
++ "key": "a",
++ "key_length": "5",
++ "used_key_parts": ["a"],
++ "ref": ["const"],
++ "rows": 1,
++ "filtered": 100
++ }
++ }
++ },
++ {
++ "query_block": {
++ "select_id": 3,
++ "table": {
++ "table_name": "t1",
++ "access_type": "ref",
++ "possible_keys": ["a"],
++ "key": "a",
++ "key_length": "5",
++ "used_key_parts": ["a"],
++ "ref": ["const"],
++ "rows": 1,
++ "filtered": 100
++ }
++ }
++ }
++ ]
++ }
++ }
++ }
++ }
++ }
++}
++drop function f1;
++drop view v1,v2,v3;
++drop table t1, t2,t3;
++#
++# Another testcase, with pushdown through GROUP BY
++#
++create table t1 (a int, b int);
++insert into t1 values (1,1),(2,2),(3,3);
++create function f1(a int) returns int DETERMINISTIC return (a+1);
++create view v2(a, a2, s) as
++select a, f1(a), sum(b) from t1 group by a, f1(a);
++# Here,
++# "(s+1) > 10" will be pushed into HAVING
++# "a > 1" will be pushed all the way to the table scan on t1
++# "a2>123" will be pushed into HAVING (as it refers to an SP call which
++# prevents pushing it to the WHERE)
++explain format=json
++select * from v2 where (s+1) > 10 AND a > 1 and a2>123;
++EXPLAIN
++{
++ "query_block": {
++ "select_id": 1,
++ "table": {
++ "table_name": "<derived2>",
++ "access_type": "ALL",
++ "rows": 3,
++ "filtered": 100,
++ "attached_condition": "v2.s + 1 > 10 and v2.a > 1 and v2.a2 > 123",
++ "materialized": {
++ "query_block": {
++ "select_id": 2,
++ "having_condition": "s + 1 > 10 and a2 > 123",
++ "filesort": {
++ "sort_key": "t1.a, f1(t1.a)",
++ "temporary_table": {
++ "table": {
++ "table_name": "t1",
++ "access_type": "ALL",
++ "rows": 3,
++ "filtered": 100,
++ "attached_condition": "t1.a > 1"
++ }
++ }
++ }
++ }
++ }
++ }
++ }
++}
++drop view v2;
++drop function f1;
++drop table t1;
+# End of 10.2 tests
+#
+# MDEV-14579: pushdown conditions into materialized views/derived tables
+# that are defined with EXIST or/and INTERSECT
+#
+create table t1 (a int, b int, c int);
+create table t2 (a int, b int, c int);
+insert into t1 values
+(1,21,345), (1,33,7), (8,33,114), (1,21,500), (1,19,117), (5,14,787),
+(8,33,123), (9,10,211), (5,16,207), (1,33,988), (5,27,132), (1,21,104),
+(6,20,309), (6,20,315), (1,21,101), (4,33,404), (9,10,800), (1,21,123);
+insert into t2 values
+(2,3,207), (1,16,909), (5,14,312),
+(5,33,207), (6,20,211), (1,19,132),
+(8,33,117), (3,21,231), (6,23,303);
+create view v1 as
+select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c < 300
+intersect
+select a, b, min(c) as c from t1
+where t1.b>10 group by a,b having c > 100;
+# using intersect in view definition
+# conjunctive subformulas : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+a b c a b c
+1 21 101 1 16 909
+1 19 117 1 16 909
+1 21 101 1 19 132
+1 19 117 1 19 132
+select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+a b c a b c
+1 21 101 1 16 909
+1 19 117 1 16 909
+1 21 101 1 19 132
+1 19 117 1 19 132
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 5 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a < 5"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a < 5"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using intersect in view definition
+# conjunctive subformulas : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a=8);
+a b c a b c
+8 33 114 8 33 117
+select * from v1,t2 where (v1.a=t2.a) and (v1.a=8);
+a b c a b c
+8 33 114 8 33 117
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a=8);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a=8);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 8"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "v1.a = 8"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a = 8"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a = 8 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using intersect in view definition
+# conjunctive subformulas : pushing into WHERE using equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (t2.a=8);
+a b c a b c
+8 33 114 8 33 117
+select * from v1,t2 where (v1.a=t2.a) and (t2.a=8);
+a b c a b c
+8 33 114 8 33 117
+explain select * from v1,t2 where (v1.a=t2.a) and (t2.a=8);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (t2.a=8);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 8"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "v1.a = 8"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a = 8"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a = 8 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using intersect in view definition
+# conjunctive subformulas : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.c>200);
+a b c a b c
+5 16 207 5 14 312
+5 16 207 5 33 207
+select * from v1,t2 where (v1.a=t2.a) and (v1.c>200);
+a b c a b c
+5 16 207 5 14 312
+5 16 207 5 33 207
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.c>200);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.c>200);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c > 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using intersect in view definition
+# conjunctive subformulas : pushing into WHERE
+# conjunctive subformulas : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>110);
+a b c a b c
+1 19 117 1 16 909
+1 19 117 1 19 132
+select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>110);
+a b c a b c
+1 19 117 1 16 909
+1 19 117 1 19 132
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>110);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>110);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 5 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c > 110",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300 and c > 110",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a < 5"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100 and c > 110",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a < 5"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using intersect in view definition
+# extracted or formula : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+a b c a b c
+5 16 207 5 14 312
+5 16 207 5 33 207
+8 33 114 8 33 117
+select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+a b c a b c
+5 16 207 5 14 312
+5 16 207 5 33 207
+8 33 114 8 33 117
+explain select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.b > 27 or v1.b < 19",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and (t1.b > 27 or t1.b < 19)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and (t1.b > 27 or t1.b < 19)"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using intersect in view definition
+# extracted or formula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+(v1.a=t2.a) and ((v1.c>200) or (v1.c<105));
+a b c a b c
+1 21 101 1 16 909
+5 16 207 5 14 312
+5 16 207 5 33 207
+1 21 101 1 19 132
+select * from v1,t2 where
+(v1.a=t2.a) and ((v1.c>200) or (v1.c<105));
+a b c a b c
+1 21 101 1 16 909
+5 16 207 5 14 312
+5 16 207 5 33 207
+1 21 101 1 19 132
+explain select * from v1,t2 where
+(v1.a=t2.a) and ((v1.c>200) or (v1.c<105));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where
+(v1.a=t2.a) and ((v1.c>200) or (v1.c<105));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c > 200 or v1.c < 105",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300 and (c > 200 or c < 105)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100 and (c > 200 or c < 105)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using intersect in view definition
+# extracted or formula : pushing into WHERE
+# extracted or formula : pushing into HAVING using equalities
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+((v1.a>3) and (t2.c>110) and (v1.c=t2.c)) or
+((v1.a=1) and (v1.c<110));
+a b c a b c
+1 21 101 2 3 207
+1 21 101 1 16 909
+1 21 101 5 14 312
+1 21 101 5 33 207
+1 21 101 6 20 211
+1 21 101 1 19 132
+1 21 101 8 33 117
+1 21 101 3 21 231
+1 21 101 6 23 303
+5 16 207 2 3 207
+5 16 207 5 33 207
+5 27 132 1 19 132
+select * from v1,t2 where
+((v1.a>3) and (t2.c>110) and (v1.c=t2.c)) or
+((v1.a=1) and (v1.c<110));
+a b c a b c
+1 21 101 2 3 207
+1 21 101 1 16 909
+1 21 101 5 14 312
+1 21 101 5 33 207
+1 21 101 6 20 211
+1 21 101 1 19 132
+1 21 101 8 33 117
+1 21 101 3 21 231
+1 21 101 6 23 303
+5 16 207 2 3 207
+5 16 207 5 33 207
+5 27 132 1 19 132
+explain select * from v1,t2 where
+((v1.a>3) and (t2.c>110) and (v1.c=t2.c)) or
+((v1.a=1) and (v1.c<110));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where
+((v1.a>3) and (t2.c>110) and (v1.c=t2.c)) or
+((v1.a=1) and (v1.c<110));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "v1.a > 3 or v1.a = 1 and v1.c < 110"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.c = t2.c and v1.a > 3 and t2.c > 110 or v1.a = 1 and v1.c < 110",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300 and (t1.a > 3 and c > 110 or c < 110 and t1.a = 1)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and (t1.a > 3 or t1.a = 1)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100 and (t1.a > 3 and c > 110 or c < 110 and t1.a = 1)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and (t1.a > 3 or t1.a = 1)"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using intersect in view definition
+# prepare of a query
+# conjunctive subformulas : pushing into WHERE
+# conjunctive subformulas : pushing into HAVING
+prepare stmt from "select * from v1,t2
+ where (v1.a=t2.a) and (v1.a<5) and (v1.c>110);";
+execute stmt;
+a b c a b c
+1 19 117 1 16 909
+1 19 117 1 19 132
+execute stmt;
+a b c a b c
+1 19 117 1 16 909
+1 19 117 1 19 132
+deallocate prepare stmt;
+# using intersect in derived table definition
+# extracted or formula : pushing into WHERE using equalities
+# extracted or formula : pushing into HAVING
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select *
+from t2,
+(select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c < 300
+intersect
+select a, b, min(c) as c from t1
+where t1.b>10 group by a,b having c > 100) as d1
+where
+(d1.b=t2.b) and
+(((t2.b>13) and (t2.c=909)) or
+((d1.a<4) and (d1.c<200)));
+a b c a b c
+1 16 909 5 16 207
+1 19 132 1 19 117
+3 21 231 1 21 101
+select *
+from t2,
+(select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c < 300
+intersect
+select a, b, min(c) as c from t1
+where t1.b>10 group by a,b having c > 100) as d1
+where
+(d1.b=t2.b) and
+(((t2.b>13) and (t2.c=909)) or
+((d1.a<4) and (d1.c<200)));
+a b c a b c
+1 16 909 5 16 207
+1 19 132 1 19 117
+3 21 231 1 21 101
+explain select *
+from t2,
+(select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c < 300
+intersect
+select a, b, min(c) as c from t1
+where t1.b>10 group by a,b having c > 100) as d1
+where
+(d1.b=t2.b) and
+(((t2.b>13) and (t2.c=909)) or
+((d1.a<4) and (d1.c<200)));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.b 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select *
+from t2,
+(select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c < 300
+intersect
+select a, b, min(c) as c from t1
+where t1.b>10 group by a,b having c > 100) as d1
+where
+(d1.b=t2.b) and
+(((t2.b>13) and (t2.c=909)) or
+((d1.a<4) and (d1.c<200)));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t2.b"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.c = 909 and t2.b > 13 or d1.a < 4 and d1.c < 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300 and (t1.b > 13 or t1.a < 4 and c < 200)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and (t1.b > 13 or t1.a < 4)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 100 and (t1.b > 13 or t1.a < 4 and c < 200)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and (t1.b > 13 or t1.a < 4)"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+except
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300;
+# using except in view definition
+# conjunctive subformulas : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+a b c a b c
+1 33 988 1 16 909
+1 21 500 1 16 909
+1 33 988 1 19 132
+1 21 500 1 19 132
+select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+a b c a b c
+1 33 988 1 16 909
+1 21 500 1 16 909
+1 33 988 1 19 132
+1 21 500 1 19 132
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 5 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a < 5"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a < 5"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using except in view definition
+# conjunctive subformulas : pushing into WHERE
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a=6);
+a b c a b c
+6 20 315 6 20 211
+6 20 315 6 23 303
+select * from v1,t2 where (v1.a=t2.a) and (v1.a=6);
+a b c a b c
+6 20 315 6 20 211
+6 20 315 6 23 303
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a=6);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a=6);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 6"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "v1.a = 6"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a = 6"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a = 6 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using except in view definition
+# conjunctive subformulas : pushing into WHERE using equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (t2.a=6);
+a b c a b c
+6 20 315 6 20 211
+6 20 315 6 23 303
+select * from v1,t2 where (v1.a=t2.a) and (t2.a=6);
+a b c a b c
+6 20 315 6 20 211
+6 20 315 6 23 303
+explain select * from v1,t2 where (v1.a=t2.a) and (t2.a=6);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (t2.a=6);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a = 6"
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "v1.a = 6"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a = 6"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a = 6 and t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using except in view definition
+# conjunctive subformulas : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.c>500);
+a b c a b c
+1 33 988 1 16 909
+5 14 787 5 14 312
+5 14 787 5 33 207
+1 33 988 1 19 132
+select * from v1,t2 where (v1.a=t2.a) and (v1.c>500);
+a b c a b c
+1 33 988 1 16 909
+5 14 787 5 14 312
+5 14 787 5 33 207
+1 33 988 1 19 132
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.c>500);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.c>500);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c > 500",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and c > 500",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300 and c > 500",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using except in view definition
+# conjunctive subformulas : pushing into WHERE
+# conjunctive subformulas : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>500);
+a b c a b c
+1 33 988 1 16 909
+1 33 988 1 19 132
+select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>500);
+a b c a b c
+1 33 988 1 16 909
+1 33 988 1 19 132
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>500);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>500);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 5 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c > 500",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and c > 500",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a < 5"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300 and c > 500",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a < 5"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using except in view definition
+# extracted or formula : pushing into WHERE
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+a b c a b c
+1 33 988 1 16 909
+5 14 787 5 14 312
+5 14 787 5 33 207
+1 33 988 1 19 132
+select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+a b c a b c
+1 33 988 1 16 909
+5 14 787 5 14 312
+5 14 787 5 33 207
+1 33 988 1 19 132
+explain select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.b > 27 or v1.b < 19",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and (t1.b > 27 or t1.b < 19)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and (t1.b > 27 or t1.b < 19)"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using except in view definition
+# extracted or formula : pushing into HAVING
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+(v1.a=t2.a) and ((v1.c<400) or (v1.c>800));
+a b c a b c
+1 33 988 1 16 909
+6 20 315 6 20 211
+1 33 988 1 19 132
+6 20 315 6 23 303
+select * from v1,t2 where
+(v1.a=t2.a) and ((v1.c<400) or (v1.c>800));
+a b c a b c
+1 33 988 1 16 909
+6 20 315 6 20 211
+1 33 988 1 19 132
+6 20 315 6 23 303
+explain select * from v1,t2 where
+(v1.a=t2.a) and ((v1.c<400) or (v1.c>800));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where
+(v1.a=t2.a) and ((v1.c<400) or (v1.c>800));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c < 400 or v1.c > 800",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and (c < 400 or c > 800)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300 and (c < 400 or c > 800)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using except in view definition
+# extracted or formula : pushing into WHERE
+# extracted or formula : pushing into HAVING using equalities
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where
+(v1.c=t2.c) and
+((v1.a>1) and (t2.c<500)) or
+((v1.a=1) and (v1.c>500));
+a b c a b c
+1 33 988 2 3 207
+1 33 988 1 16 909
+1 33 988 5 14 312
+1 33 988 5 33 207
+1 33 988 6 20 211
+1 33 988 1 19 132
+1 33 988 8 33 117
+1 33 988 3 21 231
+1 33 988 6 23 303
+select * from v1,t2 where
+(v1.c=t2.c) and
+((v1.a>1) and (t2.c<500)) or
+((v1.a=1) and (v1.c>500));
+a b c a b c
+1 33 988 2 3 207
+1 33 988 1 16 909
+1 33 988 5 14 312
+1 33 988 5 33 207
+1 33 988 6 20 211
+1 33 988 1 19 132
+1 33 988 8 33 117
+1 33 988 3 21 231
+1 33 988 6 23 303
+explain select * from v1,t2 where
+(v1.c=t2.c) and
+((v1.a>1) and (t2.c<500)) or
+((v1.a=1) and (v1.c>500));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where
+(v1.c=t2.c) and
+((v1.a>1) and (t2.c<500)) or
+((v1.a=1) and (v1.c>500));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "v1.a > 1 or v1.a = 1 and v1.c > 500"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.c = t2.c and v1.a > 1 and t2.c < 500 or v1.a = 1 and v1.c > 500",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and (t1.a > 1 and c < 500 or c > 500 and t1.a = 1)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and (t1.a > 1 or t1.a = 1)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300 and (t1.a > 1 and c < 500 or c > 500 and t1.a = 1)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and (t1.a > 1 or t1.a = 1)"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+# using except in view definition
+# prepare of a query
+# conjunctive subformulas : pushing into WHERE
+# conjunctive subformulas : pushing into HAVING
+prepare stmt from "select * from v1,t2
+ where (v1.a=t2.a) and (v1.a<5) and (v1.c>500);";
+execute stmt;
+a b c a b c
+1 33 988 1 16 909
+1 33 988 1 19 132
+execute stmt;
+a b c a b c
+1 33 988 1 16 909
+1 33 988 1 19 132
+deallocate prepare stmt;
+# using except in view definition
+# extracted or formula : pushing into WHERE using equalities
+# extracted or formula : pushing into HAVING
+# pushing equalities
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select *
+from t2,
+(select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+except
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300) as d1
+where
+(d1.b=t2.b) and
+(((t2.b>13) and (t2.c=988)) or
+((d1.a>4) and (d1.c>500)));
+a b c a b c
+5 14 312 5 14 787
+select *
+from t2,
+(select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+except
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300) as d1
+where
+(d1.b=t2.b) and
+(((t2.b>13) and (t2.c=988)) or
+((d1.a>4) and (d1.c>500)));
+a b c a b c
+5 14 312 5 14 787
+explain select *
+from t2,
+(select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+except
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300) as d1
+where
+(d1.b=t2.b) and
+(((t2.b>13) and (t2.c=988)) or
+((d1.a>4) and (d1.c>500)));
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.b 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select *
+from t2,
+(select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+except
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300) as d1
+where
+(d1.b=t2.b) and
+(((t2.b>13) and (t2.c=988)) or
+((d1.a>4) and (d1.c>500)));
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t2.b"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t2.c = 988 and t2.b > 13 or d1.a > 4 and d1.c > 500",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and (t1.b > 13 or t1.a > 4 and c > 500)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and (t1.b > 13 or t1.a > 4)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 300 and (t1.b > 13 or t1.a > 4 and c > 500)",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and (t1.b > 13 or t1.a > 4)"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using union and intersect in view definition
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+union
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300
+intersect
+select a, b, max(c) as c from t1
+where t1.a>3 group by a,b having c < 530;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+a b c a b c
+6 20 309 6 20 211
+6 20 309 6 23 303
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+a b c a b c
+6 20 309 6 20 211
+6 20 309 6 23 303
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 3 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 UNION <derived4> ALL NULL NULL NULL NULL 18 Using where
+4 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+5 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect4,5> ALL NULL NULL NULL NULL NULL
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 5 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.c > 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 5"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "__3.a > 5 and __3.c > 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect4,5>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "c < 300 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a > 5"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 5,
+ "operation": "INTERSECT",
+ "having_condition": "c < 530 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a > 3 and t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using union and intersect in view definition
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+intersect
+select a, b, max(c) as c from t1
+where t1.a>3 group by a,b having c < 500
+union
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+8 33 123 8 33 117
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+8 33 123 8 33 117
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 3 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+4 UNION t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL UNIT RESULT <unit2,3,4> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 4 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.c < 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<unit2,3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and c < 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c < 500 and c < 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a > 3 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "UNION",
+ "having_condition": "c < 300 and c < 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using union and except in view definition
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+union
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300
+except
+select a, b, max(c) as c from t1
+where t1.a>3 group by a,b having c < 530;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+a b c a b c
+6 20 309 6 20 211
+6 20 309 6 23 303
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+a b c a b c
+6 20 309 6 20 211
+6 20 309 6 23 303
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 3 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 UNION t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+4 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL UNIT RESULT <unit2,3,4> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 5 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.c > 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<unit2,3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 5"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "having_condition": "c < 300 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a > 5"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "EXCEPT",
+ "having_condition": "c < 530 and c > 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a > 3 and t1.a > 5"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using union and except in view definition
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, min(c) as c from t1
+where t1.a<9 group by a,b having c > 200
+except
+select a, b, max(c) as c from t1
+where t1.a>3 group by a,b having c < 500
+union
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+8 33 123 8 33 117
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+8 33 123 8 33 117
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 3 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+4 UNION t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL UNIT RESULT <unit2,3,4> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 4 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.c < 200",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<unit2,3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 200 and c < 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c < 500 and c < 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a > 3 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "UNION",
+ "having_condition": "c < 300 and c < 200",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using except and intersect in view definition
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300
+intersect
+select a, b, max(c) as c from t1
+where t1.a<7 group by a,b having c < 500
+except
+select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 150;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<150);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<150);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<150);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+4 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL UNIT RESULT <unit2,3,4> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<150);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 4 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c < 150",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<unit2,3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300 and c < 150",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c < 500 and c < 150",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 7 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "EXCEPT",
+ "having_condition": "c > 150 and c < 150",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using except and intersect in view definition
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300
+except
+select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 150
+intersect
+select a, b, max(c) as c from t1
+where t1.a<7 group by a,b having c < 500;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+a b c a b c
+8 33 123 8 33 117
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+a b c a b c
+8 33 123 8 33 117
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT <derived4> ALL NULL NULL NULL NULL 18 Using where
+4 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+5 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect4,5> ALL NULL NULL NULL NULL NULL
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 4 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c < 130",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300 and c < 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "__3.a > 4 and __3.c < 130",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect4,5>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "c > 150 and c < 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 5,
+ "operation": "INTERSECT",
+ "having_condition": "c < 500 and c < 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 7 and t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using except, intersect and union in view definition
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300
+except
+select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 150
+intersect
+select a, b, max(c) as c from t1
+where t1.a<7 group by a,b having c < 500
+union
+select a, b, max(c) as c from t1
+where t1.a<7 group by a,b having c < 120;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+a b c a b c
+8 33 123 8 33 117
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+a b c a b c
+8 33 123 8 33 117
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 3 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT <derived4> ALL NULL NULL NULL NULL 18 Using where
+4 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+5 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect4,5> ALL NULL NULL NULL NULL NULL
+6 UNION t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL UNIT RESULT <unit2,3,6> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 4 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.c < 130",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<unit2,3,6>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 300 and c < 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "table": {
+ "table_name": "<derived4>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "__3.a > 4 and __3.c < 130",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect4,5>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 4,
+ "having_condition": "c > 150 and c < 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 5,
+ "operation": "INTERSECT",
+ "having_condition": "c < 500 and c < 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 7 and t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 6,
+ "operation": "UNION",
+ "having_condition": "c < 120 and c < 130",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 7 and t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using intersect in view definition
+# using embedded view
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300
+intersect
+select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 120;
+create view v2 as
+select a, b, max(c) as c from v1
+where v1.a<7 group by a,b;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+explain select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+4 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect3,4> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 4 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.c < 150",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 150",
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "v1.a < 7 and v1.a > 4",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a < 7 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "INTERSECT",
+ "having_condition": "c > 120",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a < 7 and t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1,v2;
+# using except in view definition
+# using embedded view
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c < 300
+except
+select a, b, max(c) as c from t1
+where t1.a<9 group by a,b having c > 150;
+create view v2 as
+select a, b, max(c) as c from v1
+where v1.a<7 group by a,b;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+a b c a b c
+5 27 132 5 14 312
+5 27 132 5 33 207
+explain select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED <derived3> ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+4 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except3,4> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 4 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v2.c < 150",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c < 150",
+ "filesort": {
+ "sort_key": "v1.a, v1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "v1.a < 7 and v1.a > 4",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 3,
+ "having_condition": "c < 300",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a < 7 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "EXCEPT",
+ "having_condition": "c > 150",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a < 7 and t1.a > 4"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1,v2;
+# using intersect in view definition
+# conditions are pushed in different parts of selects
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.a<9 group by a having c > 300
+intersect
+select a, b, max(c) as c from t1
+where t1.b<21 group by b having c > 200;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.b>12) and (v1.c<450);
+a b c a b c
+6 20 315 6 20 211
+6 20 315 6 23 303
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.b>12) and (v1.c<450);
+a b c a b c
+6 20 315 6 20 211
+6 20 315 6 23 303
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.b>12) and (v1.c<450);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.b>12) and (v1.c<450);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 4 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.b > 12 and v1.c < 450",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<intersect2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 300 and t1.b > 12 and c < 450",
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 4"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c > 200 and t1.a > 4 and c < 450",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b < 21 and t1.b > 12"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using except in view definition
+# conditions are pushed in different parts of selects
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.b>20 group by a having c > 300
+except
+select a, b, max(c) as c from t1
+where t1.a<7 group by b having c > 150;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a<2) and (v1.b<30) and (v1.c>450);
+a b c a b c
+1 21 988 1 16 909
+1 21 988 1 19 132
+select * from v1,t2 where (v1.a=t2.a) and (v1.a<2) and (v1.b<30) and (v1.c>450);
+a b c a b c
+1 21 988 1 16 909
+1 21 988 1 19 132
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a<2) and (v1.b<30) and (v1.c>450);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a<2) and (v1.b<30) and (v1.c>450);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a < 2 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.b < 30 and v1.c > 450",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 300 and t1.b < 30 and c > 450",
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 20 and t1.a < 2"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c > 150 and t1.a < 2 and c > 450",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 7 and t1.b < 30"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using except and union in view definition
+# conditions are pushed in different parts of selects
+# conjunctive subformulas : pushing into HAVING
+# extracted or formula : pushing into WHERE
+# extracted or formula : pushing into HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.b>20 group by a having c > 300
+except
+select a, b, max(c) as c from t1
+where t1.a<7 group by b having c > 150;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and ((v1.a<2) or (v1.a<5)) and (v1.c>450);
+a b c a b c
+1 21 988 1 16 909
+1 21 988 1 19 132
+select * from v1,t2 where (v1.a=t2.a) and ((v1.a<2) or (v1.a<5)) and (v1.c>450);
+a b c a b c
+1 21 988 1 16 909
+1 21 988 1 19 132
+explain select * from v1,t2 where (v1.a=t2.a) and ((v1.a<2) or (v1.a<5)) and (v1.c>450);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 2 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 EXCEPT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and ((v1.a<2) or (v1.a<5)) and (v1.c>450);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "(t2.a < 2 or t2.a < 5) and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.c > 450",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<except2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 300 and c > 450",
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 20 and (t1.a < 2 or t1.a < 5)"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "EXCEPT",
+ "having_condition": "c > 150 and (t1.a < 2 or t1.a < 5) and c > 450",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 7"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using union and intersect in view definition
+# conditions are pushed in different parts of selects
+# conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+select a, b, max(c) as c from t1
+where t1.a<9 group by a having c > 100
+intersect
+select a, b, max(c) as c from t1
+where t1.a>3 group by b having c < 800
+union
+select a, b, max(c) as c from t1
+where t1.b>10 group by a,b having c > 300;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.a=t2.a) and (v1.a>1) and (v1.b > 12) and (v1.c>400);
+a b c a b c
+5 14 787 5 14 312
+5 14 787 5 33 207
+select * from v1,t2 where (v1.a=t2.a) and (v1.a>1) and (v1.b > 12) and (v1.c>400);
+a b c a b c
+5 14 787 5 14 312
+5 14 787 5 33 207
+explain select * from v1,t2 where (v1.a=t2.a) and (v1.a>1) and (v1.b > 12) and (v1.c>400);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.a 3 Using where
+2 DERIVED t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+3 INTERSECT t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+4 UNION t1 ALL NULL NULL NULL NULL 18 Using where; Using temporary; Using filesort
+NULL UNIT RESULT <unit2,3,4> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.a=t2.a) and (v1.a>1) and (v1.b > 12) and (v1.c>400);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.a > 1 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.b > 12 and v1.c > 400",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<unit2,3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "c > 100 and t1.b > 12 and c > 400",
+ "filesort": {
+ "sort_key": "t1.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a < 9 and t1.a > 1"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "INTERSECT",
+ "having_condition": "c < 800 and t1.a > 1 and c > 400",
+ "filesort": {
+ "sort_key": "t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.a > 3 and t1.b > 12"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "UNION",
+ "having_condition": "c > 300 and c > 400",
+ "filesort": {
+ "sort_key": "t1.a, t1.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 18,
+ "filtered": 100,
+ "attached_condition": "t1.b > 10 and t1.a > 1 and t1.b > 12"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+create table t3 (a int, b int, c int);
+insert into t3 values
+(1,21,345), (2,33,7), (8,33,114), (3,21,500), (1,19,107), (5,14,787),
+(4,33,123), (9,10,211), (11,16,207), (10,33,988), (5,27,132), (12,21,104),
+(6,20,309), (16,20,315), (16,21,101), (18,33,404), (19,10,800), (10,21,123),
+(17,11,708), (6,20,214);
+create index i1 on t3(a);
+# conjunctive subformulas : pushing into WHERE
+# pushed condition gives range access
+create view v1 as
+select a, b, max(c) as max_c from t3
+where a>0 group by a;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.b=t2.b) and (v1.a<5);
+a b max_c a b c
+4 33 123 5 33 207
+2 33 7 5 33 207
+4 33 123 8 33 117
+2 33 7 8 33 117
+3 21 500 3 21 231
+1 21 345 3 21 231
+select * from v1,t2 where (v1.b=t2.b) and (v1.a<5);
+a b max_c a b c
+1 21 345 3 21 231
+2 33 7 5 33 207
+2 33 7 8 33 117
+3 21 500 3 21 231
+4 33 123 5 33 207
+4 33 123 8 33 117
+explain select * from v1,t2 where (v1.b=t2.b) and (v1.a<5);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t3 range i1 i1 5 NULL 5 Using index condition
+explain format=json select * from v1,t2 where (v1.b=t2.b) and (v1.a<5);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 5,
+ "filtered": 80,
+ "attached_condition": "v1.a < 5"
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "v1.b = t2.b",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t3",
+ "access_type": "range",
+ "possible_keys": ["i1"],
+ "key": "i1",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "rows": 5,
+ "filtered": 100,
+ "index_condition": "t3.a > 0 and t3.a < 5"
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+# using union in view definition
+# conjunctive subformulas : pushing into WHERE
+# pushed condition gives range access
+create view v1 as
+select a, b, max(c) as c from t3
+where t3.a>1 group by a
+union
+select a, b, max(c) as c from t3
+where t3.a>2 group by a;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.b=t2.b) and (v1.a<4);
+a b c a b c
+2 33 7 5 33 207
+2 33 7 8 33 117
+3 21 500 3 21 231
+select * from v1,t2 where (v1.b=t2.b) and (v1.a<4);
+a b c a b c
+2 33 7 5 33 207
+2 33 7 8 33 117
+3 21 500 3 21 231
+explain select * from v1,t2 where (v1.b=t2.b) and (v1.a<4);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 Using where
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where; Using join buffer (flat, BNL join)
+2 DERIVED t3 range i1 i1 5 NULL 2 Using index condition
+3 UNION t3 range i1 i1 5 NULL 1 Using index condition
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.b=t2.b) and (v1.a<4);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v1.a < 4",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t3",
+ "access_type": "range",
+ "possible_keys": ["i1"],
+ "key": "i1",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "rows": 2,
+ "filtered": 100,
+ "index_condition": "t3.a > 1 and t3.a < 4"
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t3",
+ "access_type": "range",
+ "possible_keys": ["i1"],
+ "key": "i1",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "rows": 1,
+ "filtered": 100,
+ "index_condition": "t3.a > 2 and t3.a < 4"
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t2.b = v1.b"
+ }
+ }
+}
+drop view v1;
+# using union in view definition
+# conjunctive subformulas : pushing into WHERE
+# pushed condition gives range access in one of the selects
+create view v1 as
+select a, b, max(c) as c from t3
+where t3.a>1 group by a
+union
+select a, b, max(c) as c from t3
+where t3.b<21 group by b;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from v1,t2 where (v1.b=t2.b) and (v1.a<3);
+a b c a b c
+2 33 7 5 33 207
+1 19 107 1 19 132
+2 33 7 8 33 117
+select * from v1,t2 where (v1.b=t2.b) and (v1.a<3);
+a b c a b c
+2 33 7 5 33 207
+1 19 107 1 19 132
+2 33 7 8 33 117
+explain select * from v1,t2 where (v1.b=t2.b) and (v1.a<3);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t2.b 2 Using where
+2 DERIVED t3 range i1 i1 5 NULL 1 Using index condition
+3 UNION t3 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort
+NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
+explain format=json select * from v1,t2 where (v1.b=t2.b) and (v1.a<3);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 9,
+ "filtered": 100,
+ "attached_condition": "t2.b is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "ref": ["test.t2.b"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v1.a < 3",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t3",
+ "access_type": "range",
+ "possible_keys": ["i1"],
+ "key": "i1",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "rows": 1,
+ "filtered": 100,
+ "index_condition": "t3.a > 1 and t3.a < 3"
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "having_condition": "t3.a < 3",
+ "filesort": {
+ "sort_key": "t3.b",
+ "temporary_table": {
+ "table": {
+ "table_name": "t3",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t3.b < 21"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop view v1;
+alter table t3 drop index i1;
+drop table t1,t2,t3;
+#
+# MDEV-10855: Pushdown into derived with window functions
+#
+set @save_optimizer_switch= @@optimizer_switch;
+set optimizer_switch='split_materialized=off';
+create table t1 (a int, c varchar(16));
+insert into t1 values
+(8,'aa'), (5,'cc'), (1,'bb'), (2,'aa'), (9,'cc'),
+(7,'aa'), (2,'aa'), (7,'bb');
+create table t2 (a int, b int, c varchar(16), index idx(a,c));
+insert into t2 values
+(7,10,'cc'), (1,20,'aa'), (2,23,'bb'), (7,18,'cc'), (1,30,'bb'),
+(4,71,'xx'), (3,15,'aa'), (7,82,'bb'), (8,12,'dd'), (4,15,'aa'),
+(11,33,'yy'), (10,42,'zz'), (4,53,'xx'), (10,17,'yy'), (7,12,'bb'),
+(8,20,'dd'), (7,32,'bb'), (1,50,'aa'), (3,40,'bb'), (3,77,'aa');
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from (select a, c, sum(b) over (partition by a,c) from t2) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+a c sum(b) over (partition by a,c)
+3 aa 92
+3 aa 92
+3 bb 40
+4 aa 15
+7 bb 126
+7 bb 126
+7 bb 126
+7 cc 28
+7 cc 28
+select * from (select a, c, sum(b) over (partition by a,c) from t2) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+a c sum(b) over (partition by a,c)
+3 aa 92
+3 aa 92
+3 bb 40
+4 aa 15
+7 bb 126
+7 bb 126
+7 bb 126
+7 cc 28
+7 cc 28
+explain select * from (select a, c, sum(b) over (partition by a,c) from t2) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 16 Using where
+2 DERIVED t2 ALL idx NULL NULL NULL 20 Using where; Using temporary
+explain format=json select * from (select a, c, sum(b) over (partition by a,c) from t2) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 16,
+ "filtered": 100,
+ "attached_condition": "t.a > 2 and t.c in ('aa','bb','cc')",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a, t2.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 20,
+ "filtered": 80,
+ "attached_condition": "t2.a > 2 and t2.c in ('aa','bb','cc')"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(
+select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+union all
+select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+n a c s
+1 3 aa 92
+1 3 aa 92
+1 3 bb 40
+1 4 aa 15
+1 7 bb 126
+1 7 bb 126
+1 7 bb 126
+1 7 cc 28
+1 7 cc 28
+2 3 aa 132
+2 3 aa 132
+2 3 bb 132
+2 4 aa 139
+2 7 bb 154
+2 7 bb 154
+2 7 bb 154
+2 7 cc 154
+2 7 cc 154
+select * from
+(
+select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+union all
+select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+n a c s
+1 3 aa 92
+1 3 aa 92
+1 3 bb 40
+1 4 aa 15
+1 7 bb 126
+1 7 bb 126
+1 7 bb 126
+1 7 cc 28
+1 7 cc 28
+2 3 aa 132
+2 3 aa 132
+2 3 bb 132
+2 4 aa 139
+2 7 bb 154
+2 7 bb 154
+2 7 bb 154
+2 7 cc 154
+2 7 cc 154
+explain select * from
+(
+select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+union all
+select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 32 Using where
+2 DERIVED t2 ALL idx NULL NULL NULL 20 Using where; Using temporary
+3 UNION t2 ALL idx NULL NULL NULL 20 Using where; Using temporary
+explain format=json select * from
+(
+select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+union all
+select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 32,
+ "filtered": 100,
+ "attached_condition": "t.a > 2 and t.c in ('aa','bb','cc')",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a, t2.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 20,
+ "filtered": 80,
+ "attached_condition": "t2.a > 2 and t2.c in ('aa','bb','cc')"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 20,
+ "filtered": 80,
+ "attached_condition": "t2.a > 2"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select *
+from (select a, c, sum(b) over (partition by a,c) as s from t2) as t, t1
+where t1.a=t.a and t1.c=t.c and t1.c in ('aa','bb','cc');
+a c s a c
+1 bb 30 1 bb
+7 bb 126 7 bb
+7 bb 126 7 bb
+7 bb 126 7 bb
+select *
+from (select a, c, sum(b) over (partition by a,c) as s from t2) as t, t1
+where t1.a=t.a and t1.c=t.c and t1.c in ('aa','bb','cc');
+a c s a c
+1 bb 30 1 bb
+7 bb 126 7 bb
+7 bb 126 7 bb
+7 bb 126 7 bb
+explain select *
+from (select a, c, sum(b) over (partition by a,c) as s from t2) as t, t1
+where t1.a=t.a and t1.c=t.c and t1.c in ('aa','bb','cc');
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 8 Using where
+1 PRIMARY <derived2> ref key0 key0 24 test.t1.a,test.t1.c 2
+2 DERIVED t2 ALL NULL NULL NULL NULL 20 Using where; Using temporary
+explain format=json select *
+from (select a, c, sum(b) over (partition by a,c) as s from t2) as t, t1
+where t1.a=t.a and t1.c=t.c and t1.c in ('aa','bb','cc');
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 8,
+ "filtered": 100,
+ "attached_condition": "t1.c in ('aa','bb','cc') and t1.a is not null and t1.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "24",
+ "used_key_parts": ["a", "c"],
+ "ref": ["test.t1.a", "test.t1.c"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a, t2.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t2.c in ('aa','bb','cc')"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from
+(
+select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+union all
+select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+union all
+select 3 as n, a, c, sum(b) as s from t2 group by a
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+n a c s
+1 3 aa 92
+1 3 aa 92
+1 3 bb 40
+1 4 aa 15
+1 7 bb 126
+1 7 bb 126
+1 7 bb 126
+1 7 cc 28
+1 7 cc 28
+2 3 aa 132
+2 3 aa 132
+2 3 bb 132
+2 4 aa 139
+2 7 bb 154
+2 7 bb 154
+2 7 bb 154
+2 7 cc 154
+2 7 cc 154
+3 3 aa 132
+3 7 cc 154
+select * from
+(
+select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+union all
+select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+union all
+select 3 as n, a, c, sum(b) as s from t2 group by a
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+n a c s
+1 3 aa 92
+1 3 aa 92
+1 3 bb 40
+1 4 aa 15
+1 7 bb 126
+1 7 bb 126
+1 7 bb 126
+1 7 cc 28
+1 7 cc 28
+2 3 aa 132
+2 3 aa 132
+2 3 bb 132
+2 4 aa 139
+2 7 bb 154
+2 7 bb 154
+2 7 bb 154
+2 7 cc 154
+2 7 cc 154
+3 3 aa 132
+3 7 cc 154
+explain select * from
+(
+select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+union all
+select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+union all
+select 3 as n, a, c, sum(b) as s from t2 group by a
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 48 Using where
+2 DERIVED t2 ALL idx NULL NULL NULL 20 Using where; Using temporary
+3 UNION t2 ALL idx NULL NULL NULL 20 Using where; Using temporary
+4 UNION t2 ALL idx NULL NULL NULL 20 Using where; Using temporary; Using filesort
+explain format=json select * from
+(
+select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+union all
+select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+union all
+select 3 as n, a, c, sum(b) as s from t2 group by a
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 48,
+ "filtered": 100,
+ "attached_condition": "t.a > 2 and t.c in ('aa','bb','cc')",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3,4>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a, t2.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 20,
+ "filtered": 80,
+ "attached_condition": "t2.a > 2 and t2.c in ('aa','bb','cc')"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 20,
+ "filtered": 80,
+ "attached_condition": "t2.a > 2"
+ }
+ }
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 4,
+ "operation": "UNION",
+ "having_condition": "t2.c in ('aa','bb','cc')",
+ "filesort": {
+ "sort_key": "t2.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 20,
+ "filtered": 80,
+ "attached_condition": "t2.a > 2"
+ }
+ }
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by a,c) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+a c sum_b avg_b
+3 aa 92 46.0000
+3 aa 92 46.0000
+3 bb 40 40.0000
+4 aa 15 15.0000
+7 bb 126 42.0000
+7 bb 126 42.0000
+7 bb 126 42.0000
+7 cc 28 14.0000
+7 cc 28 14.0000
+select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by a,c) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+a c sum_b avg_b
+3 aa 92 46.0000
+3 aa 92 46.0000
+3 bb 40 40.0000
+4 aa 15 15.0000
+7 bb 126 42.0000
+7 bb 126 42.0000
+7 bb 126 42.0000
+7 cc 28 14.0000
+7 cc 28 14.0000
+explain select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by a,c) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 16 Using where
+2 DERIVED t2 ALL idx NULL NULL NULL 20 Using where; Using temporary
+explain format=json select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by a,c) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 16,
+ "filtered": 100,
+ "attached_condition": "t.a > 2 and t.c in ('aa','bb','cc')",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a, t2.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 20,
+ "filtered": 80,
+ "attached_condition": "t2.a > 2 and t2.c in ('aa','bb','cc')"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by a) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+a c sum_b avg_b
+3 aa 92 44.0000
+3 aa 92 44.0000
+3 bb 40 44.0000
+4 aa 15 46.3333
+7 bb 126 30.8000
+7 bb 126 30.8000
+7 bb 126 30.8000
+7 cc 28 30.8000
+7 cc 28 30.8000
+select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by a) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+a c sum_b avg_b
+3 aa 92 44.0000
+3 aa 92 44.0000
+3 bb 40 44.0000
+4 aa 15 46.3333
+7 bb 126 30.8000
+7 bb 126 30.8000
+7 bb 126 30.8000
+7 cc 28 30.8000
+7 cc 28 30.8000
+explain select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by a) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 16 Using where
+2 DERIVED t2 ALL idx NULL NULL NULL 20 Using where; Using temporary
+explain format=json select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by a) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 16,
+ "filtered": 100,
+ "attached_condition": "t.a > 2 and t.c in ('aa','bb','cc')",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a, t2.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 20,
+ "filtered": 80,
+ "attached_condition": "t2.a > 2"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='condition_pushdown_for_derived=off' for select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by c) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+a c sum_b avg_b
+3 aa 92 35.4000
+3 aa 92 35.4000
+3 bb 40 36.5000
+4 aa 15 35.4000
+7 bb 126 36.5000
+7 bb 126 36.5000
+7 bb 126 36.5000
+7 cc 28 14.0000
+7 cc 28 14.0000
+select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by c) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+a c sum_b avg_b
+3 aa 92 35.4000
+3 aa 92 35.4000
+3 bb 40 36.5000
+4 aa 15 35.4000
+7 bb 126 36.5000
+7 bb 126 36.5000
+7 bb 126 36.5000
+7 cc 28 14.0000
+7 cc 28 14.0000
+explain select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by c) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where
+2 DERIVED t2 ALL NULL NULL NULL NULL 20 Using where; Using temporary
+explain format=json select * from (select a, c,
+sum(b) over (partition by a,c) as sum_b,
+avg(b) over (partition by c) as avg_b
+from t2 ) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t.a > 2 and t.c in ('aa','bb','cc')",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t2.a, t2.c"
+ },
+ "filesort": {
+ "sort_key": "t2.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 20,
+ "filtered": 100,
+ "attached_condition": "t2.c in ('aa','bb','cc')"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop table t1,t2;
+set optimizer_switch= @save_optimizer_switch;
+#
+# MDEV-13369: Optimization for equi-joins of grouping derived tables
+# (Splitting derived tables / views with GROUP BY)
+# MDEV-13389: Optimization for equi-joins of derived tables with WF
+# (Splitting derived tables / views with window functions)
+#
+create table t1 (a int, b int, index idx_b(b)) engine=myisam;
+insert into t1 values
+(8,3), (5,7), (1,2), (2,1), (9,7), (7,5), (2,2), (7,3),
+(9,3), (8,1), (4,5), (2,3);
+create table t2 (a int, b int, c char(127), index idx_a(a)) engine=myisam;
+insert into t2 values
+(7,10,'x'), (1,20,'a'), (2,23,'b'), (7,18,'z'), (1,30,'c'),
+(4,71,'d'), (3,15,'x'), (7,82,'y'), (8,12,'t'), (4,15,'b'),
+(11,33,'a'), (10,42,'u'), (4,53,'p'), (10,17,'r'), (2,90,'x'),
+(17,10,'s'), (11,20,'v'), (12,23,'y'), (17,18,'a'), (11,30,'d'),
+(24,71,'h'), (23,15,'i'), (27,82,'k'), (28,12,'p'), (24,15,'q'),
+(31,33,'f'), (30,42,'h'), (40,53,'m'), (30,17,'o'), (21,90,'b'),
+(37,10,'e'), (31,20,'g'), (32,23,'f'), (37,18,'n'), (41,30,'l'),
+(54,71,'j'), (53,15,'w'), (57,82,'z'), (58,12,'k'), (54,15,'p'),
+(61,33,'c'), (60,42,'a'), (62,53,'x'), (67,17,'g'), (64,90,'v');
+insert into t2 select a+10, b+10, concat(c,'f') from t2;
+analyze table t1,t2;
+Table Op Msg_type Msg_text
+test.t1 analyze status OK
+test.t2 analyze status OK
+set statement optimizer_switch='split_materialized=off' for select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.c) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b < 3;
+a s m
+2 113 b
+8 12 t
+1 50 a
+2 113 b
+select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.c) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b < 3;
+a s m
+2 113 b
+8 12 t
+1 50 a
+2 113 b
+explain extended select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.c) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b < 3;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t1 range idx_b idx_b 5 NULL 4 100.00 Using index condition; Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t1.a 2 100.00
+2 LATERAL DERIVED t2 ref idx_a idx_a 5 test.t1.a 2 100.00
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`t`.`s` AS `s`,`t`.`m` AS `m` from `test`.`t1` join (/* select#2 */ select `test`.`t2`.`a` AS `a`,sum(`test`.`t2`.`b`) AS `s`,min(`test`.`t2`.`c`) AS `m` from `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` group by `test`.`t2`.`a`) `t` where `t`.`a` = `test`.`t1`.`a` and `test`.`t1`.`b` < 3
+explain format=json select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.c) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b < 3;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "range",
+ "possible_keys": ["idx_b"],
+ "key": "idx_b",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "rows": 4,
+ "filtered": 100,
+ "index_condition": "t1.b < 3",
+ "attached_condition": "t1.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 2,
+ "outer_ref_condition": "t1.a is not null",
+ "table": {
+ "table_name": "t2",
+ "access_type": "ref",
+ "possible_keys": ["idx_a"],
+ "key": "idx_a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+}
+prepare stmt from "select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.c) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b < 3";
+execute stmt;
+a s m
+2 113 b
+8 12 t
+1 50 a
+2 113 b
+execute stmt;
+a s m
+2 113 b
+8 12 t
+1 50 a
+2 113 b
+deallocate prepare stmt;
+set statement optimizer_switch='split_materialized=off' for select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.b) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b <= 5;
+a s m
+8 12 12
+1 50 20
+2 113 23
+7 110 10
+2 113 23
+7 110 10
+8 12 12
+4 139 15
+2 113 23
+select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.b) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b <= 5;
+a s m
+8 12 12
+1 50 20
+2 113 23
+7 110 10
+2 113 23
+7 110 10
+8 12 12
+4 139 15
+2 113 23
+explain extended select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.b) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b <= 5;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t1 ALL idx_b NULL NULL NULL 12 75.00 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t1.a 9 100.00
+2 DERIVED t2 ALL idx_a NULL NULL NULL 90 100.00 Using temporary; Using filesort
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`t`.`s` AS `s`,`t`.`m` AS `m` from `test`.`t1` join (/* select#2 */ select `test`.`t2`.`a` AS `a`,sum(`test`.`t2`.`b`) AS `s`,min(`test`.`t2`.`b`) AS `m` from `test`.`t2` group by `test`.`t2`.`a`) `t` where `t`.`a` = `test`.`t1`.`a` and `test`.`t1`.`b` <= 5
+explain format=json select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.b) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b <= 5;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "possible_keys": ["idx_b"],
+ "rows": 12,
+ "filtered": 75,
+ "attached_condition": "t1.b <= 5 and t1.a is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t1.a"],
+ "rows": 9,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t2.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "possible_keys": ["idx_a"],
+ "rows": 90,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+prepare stmt from "select t1.a,t.s,t.m
+from t1 join
+(select a, sum(t2.b) as s, min(t2.b) as m from t2 group by t2.a) t
+on t1.a=t.a
+where t1.b <= 5";
+execute stmt;
+a s m
+8 12 12
+1 50 20
+2 113 23
+7 110 10
+2 113 23
+7 110 10
+8 12 12
+4 139 15
+2 113 23
+execute stmt;
+a s m
+8 12 12
+1 50 20
+2 113 23
+7 110 10
+2 113 23
+7 110 10
+8 12 12
+4 139 15
+2 113 23
+deallocate prepare stmt;
+delete from t1 where t1.b between 2 and 5;
+set statement optimizer_switch='split_materialized=off' for select t1.a,t.max,t.min
+from t1 left join
+(select a, max(t2.b) max, min(t2.b) min from t2 group by t2.a) t
+on t1.a=t.a;
+a max min
+5 NULL NULL
+2 90 23
+9 NULL NULL
+8 12 12
+select t1.a,t.max,t.min
+from t1 left join
+(select a, max(t2.b) max, min(t2.b) min from t2 group by t2.a) t
+on t1.a=t.a;
+a max min
+5 NULL NULL
+2 90 23
+9 NULL NULL
+8 12 12
+explain extended select t1.a,t.max,t.min
+from t1 left join
+(select a, max(t2.b) max, min(t2.b) min from t2 group by t2.a) t
+on t1.a=t.a;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t1 ALL NULL NULL NULL NULL 4 100.00
+1 PRIMARY <derived2> ref key0 key0 5 test.t1.a 2 100.00 Using where
+2 LATERAL DERIVED t2 ref idx_a idx_a 5 test.t1.a 2 100.00
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`t`.`max` AS `max`,`t`.`min` AS `min` from `test`.`t1` left join (/* select#2 */ select `test`.`t2`.`a` AS `a`,max(`test`.`t2`.`b`) AS `max`,min(`test`.`t2`.`b`) AS `min` from `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` group by `test`.`t2`.`a`) `t` on(`t`.`a` = `test`.`t1`.`a` and `test`.`t1`.`a` is not null) where 1
+explain format=json select t1.a,t.max,t.min
+from t1 left join
+(select a, max(t2.b) max, min(t2.b) min from t2 group by t2.a) t
+on t1.a=t.a;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "const_condition": "1",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 4,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "trigcond(trigcond(t1.a is not null))",
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 2,
+ "outer_ref_condition": "t1.a is not null",
+ "table": {
+ "table_name": "t2",
+ "access_type": "ref",
+ "possible_keys": ["idx_a"],
+ "key": "idx_a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t1.a"],
+ "rows": 2,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+}
+create table t3 (a int, b int, c char(127), index idx_b(b)) engine=myisam;
+insert into t3 values
+(8,11,'aa'), (5,15,'cc'), (1,14,'bb'), (2,12,'aa'), (7,17,'cc'),
+(7,18,'aa'), (2,11,'aa'), (7,10,'bb'), (3,11,'dd'), (4,12,'ee'),
+(5,14,'dd'), (9,12,'ee');
+create table t4 (a int, b int, c char(127), index idx(a,c)) engine=myisam;
+insert into t4 values
+(7,10,'cc'), (1,20,'aa'), (2,23,'bb'), (7,18,'cc'), (1,30,'bb'),
+(4,71,'xx'), (3,15,'aa'), (7,82,'aa'), (8,12,'dd'), (4,15,'aa'),
+(11,33,'yy'), (10,42,'zz'), (4,53,'xx'), (10,17,'yy'), (7,12,'cc'),
+(8,20,'dd'), (7,32,'bb'), (1,50,'aa'), (3,40,'bb'), (3,77,'aa');
+insert into t4 select a+10, b+10, concat(c,'f') from t4;
+analyze table t3,t4;
+Table Op Msg_type Msg_text
+test.t3 analyze status OK
+test.t4 analyze status OK
+set statement optimizer_switch='split_materialized=off' for select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by a,c) t
+on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+a c max min
+7 cc 18 10
+7 aa 82 82
+select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by a,c) t
+on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+a c max min
+7 cc 18 10
+7 aa 82 82
+explain extended select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by a,c) t
+on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t3 range idx_b idx_b 5 NULL 3 100.00 Using index condition; Using where
+1 PRIMARY <derived2> ref key0 key0 133 test.t3.a,test.t3.c 2 100.00
+2 LATERAL DERIVED t4 ref idx idx 133 test.t3.a,test.t3.c 1 100.00
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t3`.`a` AS `a`,`test`.`t3`.`c` AS `c`,`t`.`max` AS `max`,`t`.`min` AS `min` from `test`.`t3` join (/* select#2 */ select `test`.`t4`.`a` AS `a`,`test`.`t4`.`c` AS `c`,max(`test`.`t4`.`b`) AS `max`,min(`test`.`t4`.`b`) AS `min` from `test`.`t4` where `test`.`t4`.`a` = `test`.`t3`.`a` and `test`.`t4`.`c` = `test`.`t3`.`c` group by `test`.`t4`.`a`,`test`.`t4`.`c`) `t` where `t`.`a` = `test`.`t3`.`a` and `t`.`c` = `test`.`t3`.`c` and `test`.`t3`.`b` > 15
+explain format=json select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by a,c) t
+on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t3",
+ "access_type": "range",
+ "possible_keys": ["idx_b"],
+ "key": "idx_b",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "rows": 3,
+ "filtered": 100,
+ "index_condition": "t3.b > 15",
+ "attached_condition": "t3.a is not null and t3.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "133",
+ "used_key_parts": ["a", "c"],
+ "ref": ["test.t3.a", "test.t3.c"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 2,
+ "outer_ref_condition": "t3.a is not null and t3.c is not null",
+ "table": {
+ "table_name": "t4",
+ "access_type": "ref",
+ "possible_keys": ["idx"],
+ "key": "idx",
+ "key_length": "133",
+ "used_key_parts": ["a", "c"],
+ "ref": ["test.t3.a", "test.t3.c"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='split_materialized=off' for select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by a,c) t
+on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+a c max min
+1 bb 30 30
+7 bb 32 32
+select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by a,c) t
+on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+a c max min
+1 bb 30 30
+7 bb 32 32
+explain extended select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by a,c) t
+on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t3 ALL idx_b NULL NULL NULL 12 75.00 Using where
+1 PRIMARY <derived2> ref key0 key0 133 test.t3.a,test.t3.c 4 100.00
+2 DERIVED t4 ALL idx NULL NULL NULL 40 100.00 Using temporary; Using filesort
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t3`.`a` AS `a`,`test`.`t3`.`c` AS `c`,`t`.`max` AS `max`,`t`.`min` AS `min` from `test`.`t3` join (/* select#2 */ select `test`.`t4`.`a` AS `a`,`test`.`t4`.`c` AS `c`,max(`test`.`t4`.`b`) AS `max`,min(`test`.`t4`.`b`) AS `min` from `test`.`t4` group by `test`.`t4`.`a`,`test`.`t4`.`c`) `t` where `t`.`a` = `test`.`t3`.`a` and `t`.`c` = `test`.`t3`.`c` and `test`.`t3`.`b` <= 15
+explain format=json select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by a,c) t
+on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t3",
+ "access_type": "ALL",
+ "possible_keys": ["idx_b"],
+ "rows": 12,
+ "filtered": 75,
+ "attached_condition": "t3.b <= 15 and t3.a is not null and t3.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "133",
+ "used_key_parts": ["a", "c"],
+ "ref": ["test.t3.a", "test.t3.c"],
+ "rows": 4,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t4.a, t4.c",
+ "temporary_table": {
+ "table": {
+ "table_name": "t4",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 40,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='split_materialized=off' for select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by c,a) t
+on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+a c max min
+7 cc 18 10
+7 aa 82 82
+select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by c,a) t
+on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+a c max min
+7 cc 18 10
+7 aa 82 82
+explain extended select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by c,a) t
+on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t3 range idx_b idx_b 5 NULL 3 100.00 Using index condition; Using where
+1 PRIMARY <derived2> ref key0 key0 133 test.t3.a,test.t3.c 2 100.00
+2 LATERAL DERIVED t4 ref idx idx 133 test.t3.a,test.t3.c 1 100.00
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t3`.`a` AS `a`,`test`.`t3`.`c` AS `c`,`t`.`max` AS `max`,`t`.`min` AS `min` from `test`.`t3` join (/* select#2 */ select `test`.`t4`.`a` AS `a`,`test`.`t4`.`c` AS `c`,max(`test`.`t4`.`b`) AS `max`,min(`test`.`t4`.`b`) AS `min` from `test`.`t4` where `test`.`t4`.`a` = `test`.`t3`.`a` and `test`.`t4`.`c` = `test`.`t3`.`c` group by `test`.`t4`.`c`,`test`.`t4`.`a`) `t` where `t`.`a` = `test`.`t3`.`a` and `t`.`c` = `test`.`t3`.`c` and `test`.`t3`.`b` > 15
+explain format=json select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by c,a) t
+on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t3",
+ "access_type": "range",
+ "possible_keys": ["idx_b"],
+ "key": "idx_b",
+ "key_length": "5",
+ "used_key_parts": ["b"],
+ "rows": 3,
+ "filtered": 100,
+ "index_condition": "t3.b > 15",
+ "attached_condition": "t3.a is not null and t3.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "133",
+ "used_key_parts": ["a", "c"],
+ "ref": ["test.t3.a", "test.t3.c"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 2,
+ "outer_ref_condition": "t3.a is not null and t3.c is not null",
+ "table": {
+ "table_name": "t4",
+ "access_type": "ref",
+ "possible_keys": ["idx"],
+ "key": "idx",
+ "key_length": "133",
+ "used_key_parts": ["a", "c"],
+ "ref": ["test.t3.a", "test.t3.c"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='split_materialized=off' for select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by c,a) t
+on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+a c max min
+1 bb 30 30
+7 bb 32 32
+select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by c,a) t
+on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+a c max min
+1 bb 30 30
+7 bb 32 32
+explain extended select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by c,a) t
+on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t3 ALL idx_b NULL NULL NULL 12 75.00 Using where
+1 PRIMARY <derived2> ref key0 key0 133 test.t3.a,test.t3.c 4 100.00
+2 DERIVED t4 ALL idx NULL NULL NULL 40 100.00 Using temporary; Using filesort
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t3`.`a` AS `a`,`test`.`t3`.`c` AS `c`,`t`.`max` AS `max`,`t`.`min` AS `min` from `test`.`t3` join (/* select#2 */ select `test`.`t4`.`a` AS `a`,`test`.`t4`.`c` AS `c`,max(`test`.`t4`.`b`) AS `max`,min(`test`.`t4`.`b`) AS `min` from `test`.`t4` group by `test`.`t4`.`c`,`test`.`t4`.`a`) `t` where `t`.`a` = `test`.`t3`.`a` and `t`.`c` = `test`.`t3`.`c` and `test`.`t3`.`b` <= 15
+explain format=json select t3.a,t3.c,t.max,t.min
+from t3 join
+(select a, c, max(b) max, min(b) min from t4 group by c,a) t
+on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t3",
+ "access_type": "ALL",
+ "possible_keys": ["idx_b"],
+ "rows": 12,
+ "filtered": 75,
+ "attached_condition": "t3.b <= 15 and t3.a is not null and t3.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "133",
+ "used_key_parts": ["a", "c"],
+ "ref": ["test.t3.a", "test.t3.c"],
+ "rows": 4,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t4.c, t4.a",
+ "temporary_table": {
+ "table": {
+ "table_name": "t4",
+ "access_type": "ALL",
+ "possible_keys": ["idx"],
+ "rows": 40,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop index idx_a on t2;
+create index idx on t2(c,b);
+create index idx_a on t3(a);
+create index idx_c on t4(c);
+insert into t3 select a+10, b+10, concat(c,'f') from t3;
+insert into t3 select a+100, b+100, concat(c,'g') from t3;
+insert into t4 select a+100, b+100, concat(c,'g') from t4;
+insert into t4 select a+1000, b+1000, concat(c,'h') from t4;
+analyze table t2,t3,t4;
+Table Op Msg_type Msg_text
+test.t2 analyze status OK
+test.t3 analyze status OK
+test.t4 analyze status OK
+set statement optimizer_switch='split_materialized=off' for select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+a b c t_c max min
+7 82 y aa 82 15
+7 82 y bb 40 23
+7 82 y cc 18 10
+select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+a b c t_c max min
+7 82 y aa 82 15
+7 82 y bb 40 23
+7 82 y cc 18 10
+explain extended select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t2 range idx idx 133 NULL 2 100.00 Using index condition; Using where
+1 PRIMARY t3 ref idx_a idx_a 5 test.t2.a 2 100.00 Using where
+1 PRIMARY <derived2> ref key0 key0 128 test.t3.c 2 100.00
+2 LATERAL DERIVED t4 ref idx_c idx_c 128 test.t3.c 3 100.00
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`t`.`c` AS `t_c`,`t`.`max` AS `max`,`t`.`min` AS `min` from `test`.`t2` join `test`.`t3` join (/* select#2 */ select `test`.`t4`.`c` AS `c`,max(`test`.`t4`.`b`) AS `max`,min(`test`.`t4`.`b`) AS `min` from `test`.`t4` where `test`.`t4`.`c` = `test`.`t3`.`c` group by `test`.`t4`.`c`) `t` where `test`.`t3`.`a` = `test`.`t2`.`a` and `t`.`c` = `test`.`t3`.`c` and `test`.`t2`.`b` between 80 and 85 and `test`.`t2`.`c` in ('y','z')
+explain format=json select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "range",
+ "possible_keys": ["idx"],
+ "key": "idx",
+ "key_length": "133",
+ "used_key_parts": ["c", "b"],
+ "rows": 2,
+ "filtered": 100,
+ "index_condition": "t2.b between 80 and 85 and t2.c in ('y','z')",
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "t3",
+ "access_type": "ref",
+ "possible_keys": ["idx_a"],
+ "key": "idx_a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t3.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "128",
+ "used_key_parts": ["c"],
+ "ref": ["test.t3.c"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 2,
+ "outer_ref_condition": "t3.c is not null",
+ "table": {
+ "table_name": "t4",
+ "access_type": "ref",
+ "possible_keys": ["idx_c"],
+ "key": "idx_c",
+ "key_length": "128",
+ "used_key_parts": ["c"],
+ "ref": ["test.t3.c"],
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='split_materialized=off' for select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+a b c t_c max min
+7 10 x cc 18 10
+7 10 x aa 82 15
+7 10 x bb 40 23
+1 20 a bb 40 23
+2 23 b aa 82 15
+2 23 b aa 82 15
+7 18 z cc 18 10
+7 18 z aa 82 15
+7 18 z bb 40 23
+1 30 c bb 40 23
+3 15 x dd 20 12
+8 12 t aa 82 15
+11 33 a bbf 50 33
+17 10 s ccf 28 20
+17 10 s aaf 92 25
+17 10 s bbf 50 33
+11 20 v bbf 50 33
+12 23 y aaf 92 25
+12 23 y aaf 92 25
+17 18 a ccf 28 20
+17 18 a aaf 92 25
+17 18 a bbf 50 33
+11 30 d bbf 50 33
+17 20 xf ccf 28 20
+17 20 xf aaf 92 25
+17 20 xf bbf 50 33
+11 30 af bbf 50 33
+12 33 bf aaf 92 25
+12 33 bf aaf 92 25
+17 28 zf ccf 28 20
+17 28 zf aaf 92 25
+17 28 zf bbf 50 33
+13 25 xf ddf 30 22
+18 22 tf aaf 92 25
+select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+a b c t_c max min
+7 10 x cc 18 10
+7 10 x aa 82 15
+7 10 x bb 40 23
+1 20 a bb 40 23
+2 23 b aa 82 15
+2 23 b aa 82 15
+7 18 z cc 18 10
+7 18 z aa 82 15
+7 18 z bb 40 23
+1 30 c bb 40 23
+3 15 x dd 20 12
+8 12 t aa 82 15
+11 33 a bbf 50 33
+17 10 s ccf 28 20
+17 10 s aaf 92 25
+17 10 s bbf 50 33
+11 20 v bbf 50 33
+12 23 y aaf 92 25
+12 23 y aaf 92 25
+17 18 a ccf 28 20
+17 18 a aaf 92 25
+17 18 a bbf 50 33
+11 30 d bbf 50 33
+17 20 xf ccf 28 20
+17 20 xf aaf 92 25
+17 20 xf bbf 50 33
+11 30 af bbf 50 33
+12 33 bf aaf 92 25
+12 33 bf aaf 92 25
+17 28 zf ccf 28 20
+17 28 zf aaf 92 25
+17 28 zf bbf 50 33
+13 25 xf ddf 30 22
+18 22 tf aaf 92 25
+explain extended select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 90 100.00 Using where
+1 PRIMARY t3 ref idx_a idx_a 5 test.t2.a 2 100.00 Using where
+1 PRIMARY <derived2> ref key0 key0 128 test.t3.c 10 100.00
+2 DERIVED t4 ALL idx_c NULL NULL NULL 160 100.00 Using temporary; Using filesort
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`t`.`c` AS `t_c`,`t`.`max` AS `max`,`t`.`min` AS `min` from `test`.`t2` join `test`.`t3` join (/* select#2 */ select `test`.`t4`.`c` AS `c`,max(`test`.`t4`.`b`) AS `max`,min(`test`.`t4`.`b`) AS `min` from `test`.`t4` group by `test`.`t4`.`c`) `t` where `test`.`t3`.`a` = `test`.`t2`.`a` and `t`.`c` = `test`.`t3`.`c` and `test`.`t2`.`b` < 40
+explain format=json select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 90,
+ "filtered": 100,
+ "attached_condition": "t2.b < 40 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "t3",
+ "access_type": "ref",
+ "possible_keys": ["idx_a"],
+ "key": "idx_a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t3.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "128",
+ "used_key_parts": ["c"],
+ "ref": ["test.t3.c"],
+ "rows": 10,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "filesort": {
+ "sort_key": "t4.c",
+ "temporary_table": {
+ "table": {
+ "table_name": "t4",
+ "access_type": "ALL",
+ "possible_keys": ["idx_c"],
+ "rows": 160,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='split_materialized=off' for select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+a b c a b c c b sum(b) over (partition by c)
+7 82 y 7 10 bb bb 23 125
+7 82 y 7 10 bb bb 30 125
+7 82 y 7 10 bb bb 32 125
+7 82 y 7 10 bb bb 40 125
+7 82 y 7 17 cc cc 10 40
+7 82 y 7 17 cc cc 12 40
+7 82 y 7 17 cc cc 18 40
+7 82 y 7 18 aa aa 15 259
+7 82 y 7 18 aa aa 15 259
+7 82 y 7 18 aa aa 20 259
+7 82 y 7 18 aa aa 50 259
+7 82 y 7 18 aa aa 77 259
+7 82 y 7 18 aa aa 82 259
+select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+a b c a b c c b sum(b) over (partition by c)
+7 82 y 7 10 bb bb 23 125
+7 82 y 7 10 bb bb 30 125
+7 82 y 7 10 bb bb 32 125
+7 82 y 7 10 bb bb 40 125
+7 82 y 7 17 cc cc 10 40
+7 82 y 7 17 cc cc 12 40
+7 82 y 7 17 cc cc 18 40
+7 82 y 7 18 aa aa 15 259
+7 82 y 7 18 aa aa 15 259
+7 82 y 7 18 aa aa 20 259
+7 82 y 7 18 aa aa 50 259
+7 82 y 7 18 aa aa 77 259
+7 82 y 7 18 aa aa 82 259
+explain extended select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t2 range idx idx 133 NULL 2 100.00 Using index condition; Using where
+1 PRIMARY t3 ref idx_a idx_a 5 test.t2.a 2 100.00 Using where
+1 PRIMARY <derived2> ref key0 key0 128 test.t3.c 2 100.00
+2 LATERAL DERIVED t4 ref idx_c idx_c 128 test.t3.c 3 100.00 Using temporary
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t3`.`c` AS `c`,`t`.`c` AS `c`,`t`.`b` AS `b`,`t`.`sum(b) over (partition by c)` AS `sum(b) over (partition by c)` from `test`.`t2` join `test`.`t3` join (/* select#2 */ select `test`.`t4`.`c` AS `c`,`test`.`t4`.`b` AS `b`,sum(`test`.`t4`.`b`) over ( partition by `test`.`t4`.`c`) AS `sum(b) over (partition by c)` from `test`.`t4` where `test`.`t4`.`c` = `test`.`t3`.`c`) `t` where `test`.`t3`.`a` = `test`.`t2`.`a` and `t`.`c` = `test`.`t3`.`c` and `test`.`t2`.`b` between 80 and 85 and `test`.`t2`.`c` in ('y','z')
+explain format=json select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "range",
+ "possible_keys": ["idx"],
+ "key": "idx",
+ "key_length": "133",
+ "used_key_parts": ["c", "b"],
+ "rows": 2,
+ "filtered": 100,
+ "index_condition": "t2.b between 80 and 85 and t2.c in ('y','z')",
+ "attached_condition": "t2.a is not null"
+ },
+ "table": {
+ "table_name": "t3",
+ "access_type": "ref",
+ "possible_keys": ["idx_a"],
+ "key": "idx_a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t3.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "128",
+ "used_key_parts": ["c"],
+ "ref": ["test.t3.c"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 2,
+ "outer_ref_condition": "t3.c is not null",
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t4.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t4",
+ "access_type": "ref",
+ "possible_keys": ["idx_c"],
+ "key": "idx_c",
+ "key_length": "128",
+ "used_key_parts": ["c"],
+ "ref": ["test.t3.c"],
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+set statement optimizer_switch='split_materialized=off' for select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+a b c a b c c b sum(b) over (partition by c)
+1 20 a 1 14 bb bb 23 125
+1 20 a 1 14 bb bb 30 125
+1 20 a 1 14 bb bb 32 125
+1 20 a 1 14 bb bb 40 125
+1 30 c 1 14 bb bb 23 125
+1 30 c 1 14 bb bb 30 125
+1 30 c 1 14 bb bb 32 125
+1 30 c 1 14 bb bb 40 125
+11 20 v 11 24 bbf bbf 33 165
+11 20 v 11 24 bbf bbf 40 165
+11 20 v 11 24 bbf bbf 42 165
+11 20 v 11 24 bbf bbf 50 165
+11 30 af 11 24 bbf bbf 33 165
+11 30 af 11 24 bbf bbf 40 165
+11 30 af 11 24 bbf bbf 42 165
+11 30 af 11 24 bbf bbf 50 165
+11 30 d 11 24 bbf bbf 33 165
+11 30 d 11 24 bbf bbf 40 165
+11 30 d 11 24 bbf bbf 42 165
+11 30 d 11 24 bbf bbf 50 165
+11 33 a 11 24 bbf bbf 33 165
+11 33 a 11 24 bbf bbf 40 165
+11 33 a 11 24 bbf bbf 42 165
+11 33 a 11 24 bbf bbf 50 165
+12 23 y 12 21 aaf aaf 25 319
+12 23 y 12 21 aaf aaf 25 319
+12 23 y 12 21 aaf aaf 30 319
+12 23 y 12 21 aaf aaf 60 319
+12 23 y 12 21 aaf aaf 87 319
+12 23 y 12 21 aaf aaf 92 319
+12 23 y 12 22 aaf aaf 25 319
+12 23 y 12 22 aaf aaf 25 319
+12 23 y 12 22 aaf aaf 30 319
+12 23 y 12 22 aaf aaf 60 319
+12 23 y 12 22 aaf aaf 87 319
+12 23 y 12 22 aaf aaf 92 319
+12 33 bf 12 21 aaf aaf 25 319
+12 33 bf 12 21 aaf aaf 25 319
+12 33 bf 12 21 aaf aaf 30 319
+12 33 bf 12 21 aaf aaf 60 319
+12 33 bf 12 21 aaf aaf 87 319
+12 33 bf 12 21 aaf aaf 92 319
+12 33 bf 12 22 aaf aaf 25 319
+12 33 bf 12 22 aaf aaf 25 319
+12 33 bf 12 22 aaf aaf 30 319
+12 33 bf 12 22 aaf aaf 60 319
+12 33 bf 12 22 aaf aaf 87 319
+12 33 bf 12 22 aaf aaf 92 319
+13 25 xf 13 21 ddf ddf 22 52
+13 25 xf 13 21 ddf ddf 30 52
+17 10 s 17 20 bbf bbf 33 165
+17 10 s 17 20 bbf bbf 40 165
+17 10 s 17 20 bbf bbf 42 165
+17 10 s 17 20 bbf bbf 50 165
+17 10 s 17 27 ccf ccf 20 70
+17 10 s 17 27 ccf ccf 22 70
+17 10 s 17 27 ccf ccf 28 70
+17 10 s 17 28 aaf aaf 25 319
+17 10 s 17 28 aaf aaf 25 319
+17 10 s 17 28 aaf aaf 30 319
+17 10 s 17 28 aaf aaf 60 319
+17 10 s 17 28 aaf aaf 87 319
+17 10 s 17 28 aaf aaf 92 319
+17 18 a 17 20 bbf bbf 33 165
+17 18 a 17 20 bbf bbf 40 165
+17 18 a 17 20 bbf bbf 42 165
+17 18 a 17 20 bbf bbf 50 165
+17 18 a 17 27 ccf ccf 20 70
+17 18 a 17 27 ccf ccf 22 70
+17 18 a 17 27 ccf ccf 28 70
+17 18 a 17 28 aaf aaf 25 319
+17 18 a 17 28 aaf aaf 25 319
+17 18 a 17 28 aaf aaf 30 319
+17 18 a 17 28 aaf aaf 60 319
+17 18 a 17 28 aaf aaf 87 319
+17 18 a 17 28 aaf aaf 92 319
+17 20 xf 17 20 bbf bbf 33 165
+17 20 xf 17 20 bbf bbf 40 165
+17 20 xf 17 20 bbf bbf 42 165
+17 20 xf 17 20 bbf bbf 50 165
+17 20 xf 17 27 ccf ccf 20 70
+17 20 xf 17 27 ccf ccf 22 70
+17 20 xf 17 27 ccf ccf 28 70
+17 20 xf 17 28 aaf aaf 25 319
+17 20 xf 17 28 aaf aaf 25 319
+17 20 xf 17 28 aaf aaf 30 319
+17 20 xf 17 28 aaf aaf 60 319
+17 20 xf 17 28 aaf aaf 87 319
+17 20 xf 17 28 aaf aaf 92 319
+17 28 zf 17 20 bbf bbf 33 165
+17 28 zf 17 20 bbf bbf 40 165
+17 28 zf 17 20 bbf bbf 42 165
+17 28 zf 17 20 bbf bbf 50 165
+17 28 zf 17 27 ccf ccf 20 70
+17 28 zf 17 27 ccf ccf 22 70
+17 28 zf 17 27 ccf ccf 28 70
+17 28 zf 17 28 aaf aaf 25 319
+17 28 zf 17 28 aaf aaf 25 319
+17 28 zf 17 28 aaf aaf 30 319
+17 28 zf 17 28 aaf aaf 60 319
+17 28 zf 17 28 aaf aaf 87 319
+17 28 zf 17 28 aaf aaf 92 319
+18 22 tf 18 21 aaf aaf 25 319
+18 22 tf 18 21 aaf aaf 25 319
+18 22 tf 18 21 aaf aaf 30 319
+18 22 tf 18 21 aaf aaf 60 319
+18 22 tf 18 21 aaf aaf 87 319
+18 22 tf 18 21 aaf aaf 92 319
+2 23 b 2 11 aa aa 15 259
+2 23 b 2 11 aa aa 15 259
+2 23 b 2 11 aa aa 20 259
+2 23 b 2 11 aa aa 50 259
+2 23 b 2 11 aa aa 77 259
+2 23 b 2 11 aa aa 82 259
+2 23 b 2 12 aa aa 15 259
+2 23 b 2 12 aa aa 15 259
+2 23 b 2 12 aa aa 20 259
+2 23 b 2 12 aa aa 50 259
+2 23 b 2 12 aa aa 77 259
+2 23 b 2 12 aa aa 82 259
+3 15 x 3 11 dd dd 12 32
+3 15 x 3 11 dd dd 20 32
+7 10 x 7 10 bb bb 23 125
+7 10 x 7 10 bb bb 30 125
+7 10 x 7 10 bb bb 32 125
+7 10 x 7 10 bb bb 40 125
+7 10 x 7 17 cc cc 10 40
+7 10 x 7 17 cc cc 12 40
+7 10 x 7 17 cc cc 18 40
+7 10 x 7 18 aa aa 15 259
+7 10 x 7 18 aa aa 15 259
+7 10 x 7 18 aa aa 20 259
+7 10 x 7 18 aa aa 50 259
+7 10 x 7 18 aa aa 77 259
+7 10 x 7 18 aa aa 82 259
+7 18 z 7 10 bb bb 23 125
+7 18 z 7 10 bb bb 30 125
+7 18 z 7 10 bb bb 32 125
+7 18 z 7 10 bb bb 40 125
+7 18 z 7 17 cc cc 10 40
+7 18 z 7 17 cc cc 12 40
+7 18 z 7 17 cc cc 18 40
+7 18 z 7 18 aa aa 15 259
+7 18 z 7 18 aa aa 15 259
+7 18 z 7 18 aa aa 20 259
+7 18 z 7 18 aa aa 50 259
+7 18 z 7 18 aa aa 77 259
+7 18 z 7 18 aa aa 82 259
+8 12 t 8 11 aa aa 15 259
+8 12 t 8 11 aa aa 15 259
+8 12 t 8 11 aa aa 20 259
+8 12 t 8 11 aa aa 50 259
+8 12 t 8 11 aa aa 77 259
+8 12 t 8 11 aa aa 82 259
+select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+a b c a b c c b sum(b) over (partition by c)
+1 20 a 1 14 bb bb 23 125
+1 20 a 1 14 bb bb 30 125
+1 20 a 1 14 bb bb 32 125
+1 20 a 1 14 bb bb 40 125
+1 30 c 1 14 bb bb 23 125
+1 30 c 1 14 bb bb 30 125
+1 30 c 1 14 bb bb 32 125
+1 30 c 1 14 bb bb 40 125
+11 20 v 11 24 bbf bbf 33 165
+11 20 v 11 24 bbf bbf 40 165
+11 20 v 11 24 bbf bbf 42 165
+11 20 v 11 24 bbf bbf 50 165
+11 30 af 11 24 bbf bbf 33 165
+11 30 af 11 24 bbf bbf 40 165
+11 30 af 11 24 bbf bbf 42 165
+11 30 af 11 24 bbf bbf 50 165
+11 30 d 11 24 bbf bbf 33 165
+11 30 d 11 24 bbf bbf 40 165
+11 30 d 11 24 bbf bbf 42 165
+11 30 d 11 24 bbf bbf 50 165
+11 33 a 11 24 bbf bbf 33 165
+11 33 a 11 24 bbf bbf 40 165
+11 33 a 11 24 bbf bbf 42 165
+11 33 a 11 24 bbf bbf 50 165
+12 23 y 12 21 aaf aaf 25 319
+12 23 y 12 21 aaf aaf 25 319
+12 23 y 12 21 aaf aaf 30 319
+12 23 y 12 21 aaf aaf 60 319
+12 23 y 12 21 aaf aaf 87 319
+12 23 y 12 21 aaf aaf 92 319
+12 23 y 12 22 aaf aaf 25 319
+12 23 y 12 22 aaf aaf 25 319
+12 23 y 12 22 aaf aaf 30 319
+12 23 y 12 22 aaf aaf 60 319
+12 23 y 12 22 aaf aaf 87 319
+12 23 y 12 22 aaf aaf 92 319
+12 33 bf 12 21 aaf aaf 25 319
+12 33 bf 12 21 aaf aaf 25 319
+12 33 bf 12 21 aaf aaf 30 319
+12 33 bf 12 21 aaf aaf 60 319
+12 33 bf 12 21 aaf aaf 87 319
+12 33 bf 12 21 aaf aaf 92 319
+12 33 bf 12 22 aaf aaf 25 319
+12 33 bf 12 22 aaf aaf 25 319
+12 33 bf 12 22 aaf aaf 30 319
+12 33 bf 12 22 aaf aaf 60 319
+12 33 bf 12 22 aaf aaf 87 319
+12 33 bf 12 22 aaf aaf 92 319
+13 25 xf 13 21 ddf ddf 22 52
+13 25 xf 13 21 ddf ddf 30 52
+17 10 s 17 20 bbf bbf 33 165
+17 10 s 17 20 bbf bbf 40 165
+17 10 s 17 20 bbf bbf 42 165
+17 10 s 17 20 bbf bbf 50 165
+17 10 s 17 27 ccf ccf 20 70
+17 10 s 17 27 ccf ccf 22 70
+17 10 s 17 27 ccf ccf 28 70
+17 10 s 17 28 aaf aaf 25 319
+17 10 s 17 28 aaf aaf 25 319
+17 10 s 17 28 aaf aaf 30 319
+17 10 s 17 28 aaf aaf 60 319
+17 10 s 17 28 aaf aaf 87 319
+17 10 s 17 28 aaf aaf 92 319
+17 18 a 17 20 bbf bbf 33 165
+17 18 a 17 20 bbf bbf 40 165
+17 18 a 17 20 bbf bbf 42 165
+17 18 a 17 20 bbf bbf 50 165
+17 18 a 17 27 ccf ccf 20 70
+17 18 a 17 27 ccf ccf 22 70
+17 18 a 17 27 ccf ccf 28 70
+17 18 a 17 28 aaf aaf 25 319
+17 18 a 17 28 aaf aaf 25 319
+17 18 a 17 28 aaf aaf 30 319
+17 18 a 17 28 aaf aaf 60 319
+17 18 a 17 28 aaf aaf 87 319
+17 18 a 17 28 aaf aaf 92 319
+17 20 xf 17 20 bbf bbf 33 165
+17 20 xf 17 20 bbf bbf 40 165
+17 20 xf 17 20 bbf bbf 42 165
+17 20 xf 17 20 bbf bbf 50 165
+17 20 xf 17 27 ccf ccf 20 70
+17 20 xf 17 27 ccf ccf 22 70
+17 20 xf 17 27 ccf ccf 28 70
+17 20 xf 17 28 aaf aaf 25 319
+17 20 xf 17 28 aaf aaf 25 319
+17 20 xf 17 28 aaf aaf 30 319
+17 20 xf 17 28 aaf aaf 60 319
+17 20 xf 17 28 aaf aaf 87 319
+17 20 xf 17 28 aaf aaf 92 319
+17 28 zf 17 20 bbf bbf 33 165
+17 28 zf 17 20 bbf bbf 40 165
+17 28 zf 17 20 bbf bbf 42 165
+17 28 zf 17 20 bbf bbf 50 165
+17 28 zf 17 27 ccf ccf 20 70
+17 28 zf 17 27 ccf ccf 22 70
+17 28 zf 17 27 ccf ccf 28 70
+17 28 zf 17 28 aaf aaf 25 319
+17 28 zf 17 28 aaf aaf 25 319
+17 28 zf 17 28 aaf aaf 30 319
+17 28 zf 17 28 aaf aaf 60 319
+17 28 zf 17 28 aaf aaf 87 319
+17 28 zf 17 28 aaf aaf 92 319
+18 22 tf 18 21 aaf aaf 25 319
+18 22 tf 18 21 aaf aaf 25 319
+18 22 tf 18 21 aaf aaf 30 319
+18 22 tf 18 21 aaf aaf 60 319
+18 22 tf 18 21 aaf aaf 87 319
+18 22 tf 18 21 aaf aaf 92 319
+2 23 b 2 11 aa aa 15 259
+2 23 b 2 11 aa aa 15 259
+2 23 b 2 11 aa aa 20 259
+2 23 b 2 11 aa aa 50 259
+2 23 b 2 11 aa aa 77 259
+2 23 b 2 11 aa aa 82 259
+2 23 b 2 12 aa aa 15 259
+2 23 b 2 12 aa aa 15 259
+2 23 b 2 12 aa aa 20 259
+2 23 b 2 12 aa aa 50 259
+2 23 b 2 12 aa aa 77 259
+2 23 b 2 12 aa aa 82 259
+3 15 x 3 11 dd dd 12 32
+3 15 x 3 11 dd dd 20 32
+7 10 x 7 10 bb bb 23 125
+7 10 x 7 10 bb bb 30 125
+7 10 x 7 10 bb bb 32 125
+7 10 x 7 10 bb bb 40 125
+7 10 x 7 17 cc cc 10 40
+7 10 x 7 17 cc cc 12 40
+7 10 x 7 17 cc cc 18 40
+7 10 x 7 18 aa aa 15 259
+7 10 x 7 18 aa aa 15 259
+7 10 x 7 18 aa aa 20 259
+7 10 x 7 18 aa aa 50 259
+7 10 x 7 18 aa aa 77 259
+7 10 x 7 18 aa aa 82 259
+7 18 z 7 10 bb bb 23 125
+7 18 z 7 10 bb bb 30 125
+7 18 z 7 10 bb bb 32 125
+7 18 z 7 10 bb bb 40 125
+7 18 z 7 17 cc cc 10 40
+7 18 z 7 17 cc cc 12 40
+7 18 z 7 17 cc cc 18 40
+7 18 z 7 18 aa aa 15 259
+7 18 z 7 18 aa aa 15 259
+7 18 z 7 18 aa aa 20 259
+7 18 z 7 18 aa aa 50 259
+7 18 z 7 18 aa aa 77 259
+7 18 z 7 18 aa aa 82 259
+8 12 t 8 11 aa aa 15 259
+8 12 t 8 11 aa aa 15 259
+8 12 t 8 11 aa aa 20 259
+8 12 t 8 11 aa aa 50 259
+8 12 t 8 11 aa aa 77 259
+8 12 t 8 11 aa aa 82 259
+explain extended select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t2 ALL NULL NULL NULL NULL 90 100.00 Using where
+1 PRIMARY t3 ref idx_a idx_a 5 test.t2.a 2 100.00 Using where
+1 PRIMARY <derived2> ref key0 key0 128 test.t3.c 10 100.00
+2 DERIVED t4 ALL idx_c NULL NULL NULL 160 100.00 Using temporary
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t3`.`c` AS `c`,`t`.`c` AS `c`,`t`.`b` AS `b`,`t`.`sum(b) over (partition by c)` AS `sum(b) over (partition by c)` from `test`.`t2` join `test`.`t3` join (/* select#2 */ select `test`.`t4`.`c` AS `c`,`test`.`t4`.`b` AS `b`,sum(`test`.`t4`.`b`) over ( partition by `test`.`t4`.`c`) AS `sum(b) over (partition by c)` from `test`.`t4`) `t` where `test`.`t3`.`a` = `test`.`t2`.`a` and `t`.`c` = `test`.`t3`.`c` and `test`.`t2`.`b` < 40
+explain format=json select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 90,
+ "filtered": 100,
+ "attached_condition": "t2.b < 40 and t2.a is not null"
+ },
+ "table": {
+ "table_name": "t3",
+ "access_type": "ref",
+ "possible_keys": ["idx_a"],
+ "key": "idx_a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t2.a"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t3.c is not null"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "128",
+ "used_key_parts": ["c"],
+ "ref": ["test.t3.c"],
+ "rows": 10,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "window_functions_computation": {
+ "sorts": {
+ "filesort": {
+ "sort_key": "t4.c"
+ }
+ },
+ "temporary_table": {
+ "table": {
+ "table_name": "t4",
+ "access_type": "ALL",
+ "possible_keys": ["idx_c"],
+ "rows": 160,
+ "filtered": 100
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop table t1,t2,t3,t4;
+#
+# MDEV-13709: Optimization for semi-joins of grouping derived tables
+# (Splitting derived tables / views with GROUP BY)
+#
+CREATE TABLE t1 (i int);
+INSERT INTO t1 VALUES (1),(9),(3);
+CREATE TABLE t2 (a int, i int);
+INSERT INTO t2 VALUES (1,9),(2,3),(3,7),(4,1);
+CREATE TABLE t3 (a int, c char(127), index(c));
+INSERT INTO t3 VALUES (1,'foo'),(3,'bar'),(4,'foo'),(2,'bar');
+INSERT INTO t3 SELECT a, concat(c,'a') FROM t3;
+CREATE TABLE t4 (a int, c char(127), index(a));
+INSERT INTO t4 VALUES
+(3,'abc'),(1,'foo'),(4,'def'),(8,'xxx'),(3,'yyy'),
+(5,'zzz'),(9,'xyz'),(2,'yxz'),(5,'zxy'),(7,'zyx') ;
+ANALYZE TABLE t1,t2,t3,t4;
+Table Op Msg_type Msg_text
+test.t1 analyze status OK
+test.t2 analyze status OK
+test.t3 analyze status OK
+test.t4 analyze status OK
+CREATE VIEW v1 AS
+SELECT c FROM t3
+WHERE a IN ( SELECT t2.a FROM t1 JOIN t2 WHERE t1.i = t2.i ) GROUP BY c ;
+set statement optimizer_switch='split_materialized=off' for SELECT * FROM t4 WHERE c IN ( SELECT c FROM v1 ) and a < 2;
+a c
+1 foo
+SELECT * FROM t4 WHERE c IN ( SELECT c FROM v1 ) and a < 2;
+a c
+1 foo
+explain extended SELECT * FROM t4 WHERE c IN ( SELECT c FROM v1 ) and a < 2;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t4 range a a 5 NULL 1 100.00 Using index condition; Using where
+1 PRIMARY <derived3> ref key0 key0 128 test.t4.c 2 100.00 FirstMatch(t4)
+3 LATERAL DERIVED t3 ref c c 128 test.t4.c 2 100.00
+3 LATERAL DERIVED <subquery4> eq_ref distinct_key distinct_key 4 func 1 100.00
+4 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 100.00
+4 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t4`.`a` AS `a`,`test`.`t4`.`c` AS `c` from `test`.`t4` semi join (`test`.`v1`) where `v1`.`c` = `test`.`t4`.`c` and `test`.`t4`.`a` < 2
+explain format=json SELECT * FROM t4 WHERE c IN ( SELECT c FROM v1 ) and a < 2;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t4",
+ "access_type": "range",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "rows": 1,
+ "filtered": 100,
+ "index_condition": "t4.a < 2",
+ "attached_condition": "t4.c is not null"
+ },
+ "table": {
+ "table_name": "<derived3>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "128",
+ "used_key_parts": ["c"],
+ "ref": ["test.t4.c"],
+ "rows": 2,
+ "filtered": 100,
+ "first_match": "t4",
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 3,
+ "const_condition": "1",
+ "outer_ref_condition": "t4.c is not null",
+ "table": {
+ "table_name": "t3",
+ "access_type": "ref",
+ "possible_keys": ["c"],
+ "key": "c",
+ "key_length": "128",
+ "used_key_parts": ["c"],
+ "ref": ["test.t4.c"],
+ "rows": 2,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "<subquery4>",
+ "access_type": "eq_ref",
+ "possible_keys": ["distinct_key"],
+ "key": "distinct_key",
+ "key_length": "4",
+ "used_key_parts": ["a"],
+ "ref": ["func"],
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 4,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ },
+ "block-nl-join": {
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 4,
+ "filtered": 100
+ },
+ "buffer_type": "flat",
+ "buffer_size": "256Kb",
+ "join_type": "BNL",
+ "attached_condition": "t2.i = t1.i and t2.i = t1.i"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v1;
+DROP TABLE t1,t2,t3,t4;
+#
+# MDEV-13710: Optimization for equi-joins of grouping derived tables
+# (Splitting derived tables / views with GROUP BY) :
+# FROM list of the derived table contains constant tables
+#
+CREATE TABLE t1 (a int, INDEX(a)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (9),(5),(1);
+CREATE TABLE t2 (b int) ENGINE=MyISAM;
+CREATE TABLE t3 (c varchar(8), d int) ENGINE=MyISAM;
+INSERT INTO t3 VALUES ('foo',2),('bar',6);
+CREATE VIEW v1 AS SELECT a FROM t1, t2 GROUP BY a;
+SELECT * FROM t3
+WHERE d IN ( SELECT * FROM v1 ) AND c LIKE 'z%' OR c IS NULL;
+c d
+DROP VIEW v1;
+DROP TABLE t1,t2,t3;
+#
+# MDEV-13734: Optimization for equi-joins of grouping derived tables
+# (Splitting derived tables / views with GROUP BY) :
+# derived table / view is empty
+#
+CREATE TABLE t1 (a int, b int, INDEX(a)) ENGINE=MyISAM;
+CREATE TABLE t2 (c int) ENGINE=MyISAM;
+CREATE VIEW v1 AS SELECT a, b FROM t1 STRAIGHT_JOIN t2;
+CREATE VIEW v2 AS SELECT a, max(b) as bmax FROM v1 GROUP BY a;
+CREATE VIEW v3 AS SELECT v2.* FROM t1 JOIN v2 ON t1.b = v2.bmax ;
+SELECT * FROM v3 JOIN t1 ON (bmax = b);
+a bmax a b
+DROP VIEW v1,v2,v3;
+DROP TABLE t1,t2;
+#
+# MDEV-14845: Impossible where for derived with GROUP BY
+#
+CREATE TABLE t1 (pk INT PRIMARY KEY);
+INSERT INTO t1 VALUES (1),(2);
+WITH cte AS ( SELECT pk FROM t1 WHERE pk IS NULL GROUP BY pk )
+SELECT * FROM cte;
+pk
+EXPLAIN EXTENDED WITH cte AS ( SELECT pk FROM t1 WHERE pk IS NULL GROUP BY pk )
+SELECT * FROM cte;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY <derived2> system NULL NULL NULL NULL 0 0.00 Const row not found
+2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
+Warnings:
+Note 1003 with cte as (/* select#2 */ select `test`.`t1`.`pk` AS `pk` from `test`.`t1` where 0 group by `test`.`t1`.`pk`)/* select#1 */ select NULL AS `pk` from `cte`
+DROP TABLE t1;
+#
+# MDEV-14880: assertion failure in optimizer when splitting is applied
+#
+CREATE TABLE t1 (pk1 INT PRIMARY KEY, f INT) ENGINE=Aria;
+INSERT INTO t1 VALUES (1,0),(2,0);
+CREATE TABLE t2 (pk2 INT PRIMARY KEY) ENGINE=Aria;
+INSERT INTO t2 VALUES (1),(2),(3);
+CREATE VIEW v2 AS SELECT pk2, COUNT(*) AS cnt FROM t2 GROUP BY pk2;
+SELECT * FROM t1 INNER JOIN v2 ON pk1 = pk2 WHERE f <> 5;
+pk1 f pk2 cnt
+1 0 1 1
+2 0 2 1
+EXPLAIN EXTENDED SELECT * FROM t1 INNER JOIN v2 ON pk1 = pk2 WHERE f <> 5;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 2 100.00 Using where
+1 PRIMARY <derived2> ref key0 key0 4 test.t1.pk1 2 100.00
+2 LATERAL DERIVED t2 eq_ref PRIMARY PRIMARY 4 test.t1.pk1 1 100.00 Using index
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t1`.`pk1` AS `pk1`,`test`.`t1`.`f` AS `f`,`v2`.`pk2` AS `pk2`,`v2`.`cnt` AS `cnt` from `test`.`t1` join `test`.`v2` where `v2`.`pk2` = `test`.`t1`.`pk1` and `test`.`t1`.`f` <> 5
+EXPLAIN FORMAT=JSON SELECT * FROM t1 INNER JOIN v2 ON pk1 = pk2 WHERE f <> 5;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "possible_keys": ["PRIMARY"],
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t1.f <> 5"
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "4",
+ "used_key_parts": ["pk2"],
+ "ref": ["test.t1.pk1"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t2",
+ "access_type": "eq_ref",
+ "possible_keys": ["PRIMARY"],
+ "key": "PRIMARY",
+ "key_length": "4",
+ "used_key_parts": ["pk2"],
+ "ref": ["test.t1.pk1"],
+ "rows": 1,
+ "filtered": 100,
+ "using_index": true
+ }
+ }
+ }
+ }
+ }
+}
+DROP VIEW v2;
+DROP TABLE t1,t2;
+#
+# MDEV-15017: splittable table is constant table
+#
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+CREATE TABLE t2 (pk INT, b INT, PRIMARY KEY (pk)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,2),(3,4);
+CREATE VIEW v2 AS SELECT pk, MIN(b) FROM t2 GROUP BY pk;
+SELECT * FROM t1 LEFT JOIN v2 ON (a = pk);
+a pk MIN(b)
+DROP VIEW v2;
+DROP TABLE t1,t2;
+#
+# MDEV-14994: splittable table with no rows
+#
+CREATE TABLE t1 (f INT PRIMARY KEY) ENGINE=MyISAM;
+CREATE VIEW v1 AS SELECT a.* FROM t1 AS a STRAIGHT_JOIN t1 AS b;
+CREATE VIEW v2 AS SELECT f FROM v1 GROUP BY f;
+SELECT * FROM v1 JOIN v2 ON v1.f = v2.f;
+f f
+EXPLAIN EXTENDED
+SELECT * FROM v1 JOIN v2 ON v1.f = v2.f;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
+3 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL no matching row in const table
+Warnings:
+Note 1003 /* select#1 */ select NULL AS `f`,`v2`.`f` AS `f` from `test`.`t1` `a` straight_join `test`.`t1` `b` join `test`.`v2` where 0
+DROP VIEW v1,v2;
+DROP TABLE t1;
+#
+# MDEV-15899: derived with WF without any key access
+#
+create table t1 (f1 int, f2 int, f4 int);
+insert into t1 values
+(3,1,1), (3,0,9), (0,1,8), (9,0,0), (3,0,9);
+with
+cte as (select median(f2) over (partition by f1) as k1 from t1 order by f1),
+cte1 as (select median(f4) over (partition by f1) as k2 from t1)
+select k1,k2 from cte1, cte;
+k1 k2
+0.0000000000 0.0000000000
+0.0000000000 0.0000000000
+0.0000000000 0.0000000000
+0.0000000000 0.0000000000
+0.0000000000 8.0000000000
+0.0000000000 8.0000000000
+0.0000000000 8.0000000000
+0.0000000000 8.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+0.0000000000 9.0000000000
+1.0000000000 0.0000000000
+1.0000000000 8.0000000000
+1.0000000000 9.0000000000
+1.0000000000 9.0000000000
+1.0000000000 9.0000000000
+explain with
+cte as (select median(f2) over (partition by f1) as k1 from t1 order by f1),
+cte1 as (select median(f4) over (partition by f1) as k2 from t1)
+select k1,k2 from cte1, cte;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived3> ALL NULL NULL NULL NULL 5
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
+3 DERIVED t1 ALL NULL NULL NULL NULL 5 Using temporary
+2 DERIVED t1 ALL NULL NULL NULL NULL 5 Using temporary; Using filesort
+drop table t1;
+#
+# MDEV-16104: embedded splittable materialized derived/views
+#
+CREATE TABLE t1 (f int PRIMARY KEY) ENGINE=MyISAM;
+INSERT INTO t1
+VALUES (3), (7), (1), (4), (8), (5), (9);
+CREATE ALGORITHM=MERGE VIEW v1 AS
+SELECT a2.*
+FROM
+( SELECT f, COUNT(*) as c FROM t1 GROUP BY f ) AS a1
+JOIN
+t1 AS a2
+USING (f);
+EXPLAIN EXTENDED
+SELECT * FROM ( SELECT STRAIGHT_JOIN f, COUNT(*) as c FROM v1 GROUP BY f ) AS s;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 7 100.00
+2 DERIVED <derived4> ALL NULL NULL NULL NULL 7 100.00 Using temporary; Using filesort
+2 DERIVED a2 eq_ref PRIMARY PRIMARY 4 a1.f 1 100.00 Using index
+4 DERIVED t1 index PRIMARY PRIMARY 4 NULL 7 100.00 Using index; Using temporary; Using filesort
+Warnings:
+Note 1003 /* select#1 */ select `s`.`f` AS `f`,`s`.`c` AS `c` from (/* select#2 */ select straight_join `a2`.`f` AS `f`,count(0) AS `c` from ((/* select#4 */ select `test`.`t1`.`f` AS `f`,count(0) AS `c` from `test`.`t1` group by `test`.`t1`.`f`)) `a1` join `test`.`t1` `a2` where `a2`.`f` = `a1`.`f` group by `a2`.`f`) `s`
+SELECT * FROM ( SELECT STRAIGHT_JOIN f, COUNT(*) as c FROM v1 GROUP BY f ) AS s;
+f c
+1 1
+3 1
+4 1
+5 1
+7 1
+8 1
+9 1
+DROP VIEW v1;
+DROP TABLE t1;
+#
+# MDEV-16801: splittable materialized derived/views with
+# one grouping field from table without keys
+#
+CREATE TABLE t1 (a int, b int, INDEX idx_a(a), INDEX idx_b(b)) ENGINE=MYISAM;
+CREATE TABLE t2 (c int) ENGINE=MYISAM;
+CREATE TABLE t3 (d int) ENGINE=MYISAM;
+INSERT INTO t1 VALUES
+(77,7), (11,1), (33,3), (44,4), (8,88),
+(78,7), (98,9), (38,3), (28,2), (79,7),
+(58,5), (42,4), (71,7), (27,2), (91,9);
+INSERT INTO t1 SELECT a+100, b+10 FROM t1;
+INSERT INTO t2 VALUES
+(100), (700), (200), (100), (200);
+INSERT INTO t3 VALUES
+(3), (4), (1), (8), (3);
+ANALYZE tables t1,t2,t3;
+Table Op Msg_type Msg_text
+test.t1 analyze status OK
+test.t2 analyze status OK
+test.t3 analyze status OK
+SELECT *
+FROM t3,
+(SELECT t1.b, t2.c
+FROM t1, t2
+GROUP BY t1.b,t2.c) dt
+WHERE t3.d = dt.b;
+d b c
+3 3 700
+3 3 200
+3 3 100
+4 4 700
+4 4 200
+4 4 100
+1 1 700
+1 1 200
+1 1 100
+3 3 700
+3 3 200
+3 3 100
+EXPLAIN EXTENDED SELECT *
+FROM t3,
+(SELECT t1.b, t2.c
+FROM t1, t2
+GROUP BY t1.b,t2.c) dt
+WHERE t3.d = dt.b;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t3 ALL NULL NULL NULL NULL 5 100.00 Using where
+1 PRIMARY <derived2> ref key0 key0 5 test.t3.d 2 100.00
+2 LATERAL DERIVED t1 ref idx_b idx_b 5 test.t3.d 2 100.00 Using index; Using temporary; Using filesort
+2 LATERAL DERIVED t2 ALL NULL NULL NULL NULL 5 100.00 Using join buffer (flat, BNL join)
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t3`.`d` AS `d`,`dt`.`b` AS `b`,`dt`.`c` AS `c` from `test`.`t3` join (/* select#2 */ select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`b` = `test`.`t3`.`d` group by `test`.`t1`.`b`,`test`.`t2`.`c`) `dt` where `dt`.`b` = `test`.`t3`.`d`
+DROP TABLE t1,t2,t3;
+#
+# MDEV-17419: splittable materialized derived/view
+# when join_cache_level = 4
+#
+set join_cache_level = 4;
+CREATE TABLE t1 (
+id INT UNSIGNED NOT NULL AUTO_INCREMENT,
+username VARCHAR(50) NULL DEFAULT '0',
+PRIMARY KEY (id)
+) COLLATE='utf8_general_ci';
+CREATE TABLE t2 (
+id INT UNSIGNED NOT NULL AUTO_INCREMENT,
+userid INT UNSIGNED NOT NULL,
+logindate DATETIME NOT NULL,
+PRIMARY KEY (id)
+) COLLATE='utf8_general_ci';
+INSERT INTO t1 (id, username) VALUES
+(1,"user1"), (2, "user2");
+INSERT INTO t2 (id, userid, logindate) VALUES
+(1,1,"2015-06-19 12:17:02.828"),
+(2,1,"2016-06-19 12:17:02.828"),
+(3,2,"2017-06-19 12:17:02.828"),
+(4,2,"2018-06-19 12:17:02.828");
+EXPLAIN select * from t1 as u
+left join
+(select * from t2 as au group by au.userid) as auditlastlogin
+on u.id=auditlastlogin.userid;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY u ALL NULL NULL NULL NULL 2
+1 PRIMARY <derived2> ref key0 key0 5 test.u.id 2
+2 DERIVED au ALL NULL NULL NULL NULL 4 Using temporary; Using filesort
+select * from t1 as u
+left join
+(select * from t2 as au group by au.userid) as auditlastlogin
+on u.id=auditlastlogin.userid;
+id username id userid logindate
+1 user1 1 1 2015-06-19 12:17:02
+2 user2 3 2 2017-06-19 12:17:02
+set join_cache_level=default;
+DROP TABLE t1,t2;
+#
+# MDEV-21614: potentially splittable materialized derived/view
+# within materialized semi-join
+#
+create table t1 (
+id int not null auto_increment primary key,
+a int not null
+) engine=myisam;
+create table t2 (
+id int not null auto_increment primary key,
+ro_id int not null,
+flag int not null, key (ro_id)
+) engine=myisam;
+insert into t1(a) select seq+100 from seq_1_to_20;
+insert into t2(ro_id,flag) select seq, 1 from seq_1_to_20;
+insert into t2(ro_id,flag) select seq, 0 from seq_1_to_20;
+create view v1 as
+select t1.* from t1 left join t2 on (t1.id = t2.ro_id AND t2.flag = 1)
+group by t1.id;
+select id, a from t1 where id in (select id from v1);
+id a
+1 101
+2 102
+3 103
+4 104
+5 105
+6 106
+7 107
+8 108
+9 109
+10 110
+11 111
+12 112
+13 113
+14 114
+15 115
+16 116
+17 117
+18 118
+19 119
+20 120
+explain extended select id, a from t1 where id in (select id from v1);
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 20 100.00
+1 PRIMARY <derived3> ref key0 key0 4 test.t1.id 2 100.00 FirstMatch(t1)
+3 LATERAL DERIVED t1 eq_ref PRIMARY PRIMARY 4 test.t1.id 1 100.00
+3 LATERAL DERIVED t2 ref ro_id ro_id 4 test.t1.id 1 100.00 Using where
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`v1`) where `v1`.`id` = `test`.`t1`.`id`
+select id, a from t1
+where id in (select id
+from (select t1.* from t1 left join t2
+on (t1.id = t2.ro_id AND t2.flag = 1)
+group by t1.id) dt);
+id a
+1 101
+2 102
+3 103
+4 104
+5 105
+6 106
+7 107
+8 108
+9 109
+10 110
+11 111
+12 112
+13 113
+14 114
+15 115
+16 116
+17 117
+18 118
+19 119
+20 120
+explain extended select id, a from t1
+where id in (select id
+from (select t1.* from t1 left join t2
+on (t1.id = t2.ro_id AND t2.flag = 1)
+group by t1.id) dt);
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 20 100.00
+1 PRIMARY <derived3> ref key0 key0 4 test.t1.id 2 100.00 FirstMatch(t1)
+3 LATERAL DERIVED t1 eq_ref PRIMARY PRIMARY 4 test.t1.id 1 100.00
+3 LATERAL DERIVED t2 ref ro_id ro_id 4 test.t1.id 1 100.00 Using where
+Warnings:
+Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`a` AS `a` from `test`.`t1` semi join ((/* select#3 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`a` AS `a` from `test`.`t1` left join `test`.`t2` on(`test`.`t2`.`ro_id` = `test`.`t1`.`id` and `test`.`t2`.`flag` = 1) where `test`.`t1`.`id` = `test`.`t1`.`id` group by `test`.`t1`.`id`) `dt`) where `dt`.`id` = `test`.`t1`.`id`
+drop view v1;
+drop table t1,t2;
+#
+# MDEV-21883: potentially splittable materialized derived
+# that uses a join of 32 tables
+#
+CREATE TABLE t (id INT NOT NULL PRIMARY KEY);
+INSERT INTO t values (1),(2),(3);
+set statement optimizer_switch='split_materialized=off' for SELECT t.id FROM t
+LEFT JOIN (
+SELECT t0.id FROM t AS t0
+LEFT JOIN t AS t1 ON 0=1
+LEFT JOIN t AS t2 ON 0=1
+LEFT JOIN t AS t3 ON 0=1
+LEFT JOIN t AS t4 ON 0=1
+LEFT JOIN t AS t5 ON 0=1
+LEFT JOIN t AS t6 ON 0=1
+LEFT JOIN t AS t7 ON 0=1
+LEFT JOIN t AS t8 ON 0=1
+LEFT JOIN t AS t9 ON 0=1
+LEFT JOIN t AS t10 ON 0=1
+LEFT JOIN t AS t11 ON 0=1
+LEFT JOIN t AS t12 ON 0=1
+LEFT JOIN t AS t13 ON 0=1
+LEFT JOIN t AS t14 ON 0=1
+LEFT JOIN t AS t15 ON 0=1
+LEFT JOIN t AS t16 ON 0=1
+LEFT JOIN t AS t17 ON 0=1
+LEFT JOIN t AS t18 ON 0=1
+LEFT JOIN t AS t19 ON 0=1
+LEFT JOIN t AS t20 ON 0=1
+LEFT JOIN t AS t21 ON 0=1
+LEFT JOIN t AS t22 ON 0=1
+LEFT JOIN t AS t23 ON 0=1
+LEFT JOIN t AS t24 ON 0=1
+LEFT JOIN t AS t25 ON 0=1
+LEFT JOIN t AS t26 ON 0=1
+LEFT JOIN t AS t27 ON 0=1
+LEFT JOIN t AS t28 ON 0=1
+LEFT JOIN t AS t29 ON 0=1
+LEFT JOIN t AS t30 ON 0=1
+LEFT JOIN t AS t31 ON 0=1
+GROUP BY t0.id) AS dt ON dt.id = t.id;
+id
+1
+2
+3
+set statement optimizer_switch='split_materialized=on' for SELECT t.id FROM t
+LEFT JOIN (
+SELECT t0.id FROM t AS t0
+LEFT JOIN t AS t1 ON 0=1
+LEFT JOIN t AS t2 ON 0=1
+LEFT JOIN t AS t3 ON 0=1
+LEFT JOIN t AS t4 ON 0=1
+LEFT JOIN t AS t5 ON 0=1
+LEFT JOIN t AS t6 ON 0=1
+LEFT JOIN t AS t7 ON 0=1
+LEFT JOIN t AS t8 ON 0=1
+LEFT JOIN t AS t9 ON 0=1
+LEFT JOIN t AS t10 ON 0=1
+LEFT JOIN t AS t11 ON 0=1
+LEFT JOIN t AS t12 ON 0=1
+LEFT JOIN t AS t13 ON 0=1
+LEFT JOIN t AS t14 ON 0=1
+LEFT JOIN t AS t15 ON 0=1
+LEFT JOIN t AS t16 ON 0=1
+LEFT JOIN t AS t17 ON 0=1
+LEFT JOIN t AS t18 ON 0=1
+LEFT JOIN t AS t19 ON 0=1
+LEFT JOIN t AS t20 ON 0=1
+LEFT JOIN t AS t21 ON 0=1
+LEFT JOIN t AS t22 ON 0=1
+LEFT JOIN t AS t23 ON 0=1
+LEFT JOIN t AS t24 ON 0=1
+LEFT JOIN t AS t25 ON 0=1
+LEFT JOIN t AS t26 ON 0=1
+LEFT JOIN t AS t27 ON 0=1
+LEFT JOIN t AS t28 ON 0=1
+LEFT JOIN t AS t29 ON 0=1
+LEFT JOIN t AS t30 ON 0=1
+LEFT JOIN t AS t31 ON 0=1
+GROUP BY t0.id) AS dt ON dt.id = t.id;
+id
+1
+2
+3
+DROP TABLE t;
+#
+# MDEV-23804: Server crashes in st_select_lex::collect_grouping_fields_for_derived
+#
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (3),(4);
+CREATE VIEW v1 AS SELECT a FROM t1 UNION VALUES (3),(4);
+ANALYZE FORMAT=JSON SELECT * from v1 WHERE a=3;
+ANALYZE
+{
+ "query_block": {
+ "select_id": 1,
+ "r_loops": 1,
+ "r_total_time_ms": "REPLACED",
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "r_loops": 1,
+ "rows": 4,
+ "r_rows": 2,
+ "r_total_time_ms": "REPLACED",
+ "filtered": 100,
+ "r_filtered": 50,
+ "attached_condition": "v1.a = 3",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "r_loops": 1,
+ "r_rows": 2,
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "r_loops": 1,
+ "r_total_time_ms": "REPLACED",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "r_loops": 1,
+ "rows": 2,
+ "r_rows": 2,
+ "r_total_time_ms": "REPLACED",
+ "filtered": 100,
+ "r_filtered": 50,
+ "attached_condition": "t1.a = 3"
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "message": "No tables used"
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+SELECT * from v1 WHERE a=3;
+a
+3
+DROP VIEW v1;
+DROP TABLE t1;
+#
+# MDEV-25128: Split optimization for join with materialized semi-join
+#
+create table t1 (id int, a int, index (a), index (id, a)) engine=myisam;
+insert into t1 values
+(17,1),(17,3010),(17,3013),(17,3053),(21,2446),(21,2467),(21,2);
+create table t2 (a int) engine=myisam;
+insert into t2 values (1),(2),(3);
+create table t3 (id int) engine=myisam;
+insert into t3 values (1),(2);
+analyze table t1,t2,t3;
+Table Op Msg_type Msg_text
+test.t1 analyze status OK
+test.t2 analyze status OK
+test.t3 analyze status OK
+set optimizer_switch="split_materialized=off";
+select * from t1, (select a from t1 cp2 group by a) dt, t3
+where dt.a = t1.a and t1.a = t3.id and t1.a in (select a from t2);
+id a a id
+17 1 1 1
+21 2 2 2
+explain select * from t1, (select a from t1 cp2 group by a) dt, t3
+where dt.a = t1.a and t1.a = t3.id and t1.a in (select a from t2);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where
+1 PRIMARY t1 ref a a 5 test.t3.id 1
+1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
+1 PRIMARY <derived2> ref key0 key0 5 test.t3.id 2
+3 MATERIALIZED t2 ALL NULL NULL NULL NULL 3
+2 DERIVED cp2 index NULL a 5 NULL 7 Using index
+explain format=json select * from t1, (select a from t1 cp2 group by a) dt, t3
+where dt.a = t1.a and t1.a = t3.id and t1.a in (select a from t2);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t3",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t3.`id` is not null and t3.`id` is not null"
+ },
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t3.id"],
+ "rows": 1,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "eq_ref",
+ "possible_keys": ["distinct_key"],
+ "key": "distinct_key",
+ "key_length": "4",
+ "used_key_parts": ["a"],
+ "ref": ["func"],
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t3.id"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "cp2",
+ "access_type": "index",
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "rows": 7,
+ "filtered": 100,
+ "using_index": true
+ }
+ }
+ }
+ }
+ }
+}
+set optimizer_switch="split_materialized=default";
+select * from t1, (select a from t1 cp2 group by a) dt, t3
+where dt.a = t1.a and t1.a = t3.id and t1.a in (select a from t2);
+id a a id
+17 1 1 1
+21 2 2 2
+explain select * from t1, (select a from t1 cp2 group by a) dt, t3
+where dt.a = t1.a and t1.a = t3.id and t1.a in (select a from t2);
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where
+1 PRIMARY t1 ref a a 5 test.t3.id 1
+1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
+1 PRIMARY <derived2> ref key0 key0 5 test.t3.id 2
+3 MATERIALIZED t2 ALL NULL NULL NULL NULL 3
+2 LATERAL DERIVED cp2 ref a a 5 test.t1.a 1 Using index
+explain format=json select * from t1, (select a from t1 cp2 group by a) dt, t3
+where dt.a = t1.a and t1.a = t3.id and t1.a in (select a from t2);
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "t3",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "t3.`id` is not null and t3.`id` is not null"
+ },
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t3.id"],
+ "rows": 1,
+ "filtered": 100
+ },
+ "table": {
+ "table_name": "<subquery3>",
+ "access_type": "eq_ref",
+ "possible_keys": ["distinct_key"],
+ "key": "distinct_key",
+ "key_length": "4",
+ "used_key_parts": ["a"],
+ "ref": ["func"],
+ "rows": 1,
+ "filtered": 100,
+ "materialized": {
+ "unique": 1,
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t2",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100
+ }
+ }
+ }
+ },
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ref",
+ "possible_keys": ["key0"],
+ "key": "key0",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t3.id"],
+ "rows": 2,
+ "filtered": 100,
+ "materialized": {
+ "lateral": 1,
+ "query_block": {
+ "select_id": 2,
+ "outer_ref_condition": "t1.a is not null",
+ "table": {
+ "table_name": "cp2",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["test.t1.a"],
+ "rows": 1,
+ "filtered": 100,
+ "using_index": true
+ }
+ }
+ }
+ }
+ }
+}
+prepare stmt from "select * from t1, (select a from t1 cp2 group by a) dt, t3
+where dt.a = t1.a and t1.a = t3.id and t1.a in (select a from t2)";
+execute stmt;
+id a a id
+17 1 1 1
+21 2 2 2
+execute stmt;
+id a a id
+17 1 1 1
+21 2 2 2
+deallocate prepare stmt;
+drop table t1,t2,t3;
+# End of 10.3 tests
diff --cc mysql-test/main/derived_cond_pushdown.test
index 244ec1453a8,00000000000..9bb9d9b9bcc
mode 100644,000000..100644
--- a/mysql-test/main/derived_cond_pushdown.test
+++ b/mysql-test/main/derived_cond_pushdown.test
@@@ -1,3544 -1,0 +1,3614 @@@
+--source include/have_sequence.inc
+--source include/default_optimizer_switch.inc
+let $no_pushdown= set statement optimizer_switch='condition_pushdown_for_derived=off' for;
+set @@join_buffer_size=256*1024;
+
+create table t1 (a int, b int, c int);
+create table t2 (a int, b int, c int, d decimal);
+insert into t1 values
+ (1,21,345), (1,33,7), (8,33,114), (1,21,500), (1,19,107), (5,14,787),
+ (8,33,123), (9,10,211), (5,16,207), (1,33,988), (5,27,132), (1,21,104),
+ (6,20,309), (6,20,315), (1,21,101), (8,33,404), (9,10,800), (1,21,123),
+ (7,11,708), (6,20,214);
+insert into t2 values
+ (2,3,207,207.0000), (1,21,909,12.0000), (7,13,312,406.0000),
+ (8,64,248,107.0000), (6,20,315,279.3333), (1,19,203,107.0000),
+ (8,80,800,314.0000), (3,12,231,190.0000), (6,23,303,909.0000);
+
+create table t1_double(a int, b double, c double);
+insert into t1_double values
+ (1,23.4,14.3333), (1,12.5,18.9), (3,12.5,18.9),
+ (4,33.4,14.3333), (4,14.3333,13.65), (5,17.89,7.22),
+ (6,33.4,14.3), (10,33.4,13.65), (11,33.4,13.65);
+
+create table t2_double(a int, b double, c double);
+insert into t2_double values
+ (1,22.4,14.3333), (1,12.5,18.9), (2,22.4,18.9),
+ (4,33.4,14.3333), (5,22.4,13.65), (7,17.89,18.9),
+ (6,33.4,14.3333), (10,31.4,13.65), (12,33.4,13.65);
+
+create table t1_char(a char, b char(8), c int);
+insert into t1_char values
+ ('a','Ivan',1), ('b','Vika',2), ('b','Inga',6), ('c','Vika',7),
+ ('b','Ivan',7), ('a','Alex',6), ('b','Inga',5), ('d','Ron',9),
+ ('d','Harry',2), ('d','Hermione',3), ('c','Ivan',3), ('c','Harry',4);
+
+create table t2_char(a char, b char(8), c int);
+insert into t2_char values
+ ('b','Ivan',1), ('c','Vinny',3), ('c','Inga',9), ('a','Vika',1),
+ ('c','Ivan',2), ('b','Ali',6), ('c','Inga',2), ('a','Ron',9),
+ ('d','Harry',1), ('b','Hermes',3), ('b','Ivan',11), ('b','Harry',4);
+
+create table t1_decimal (a decimal(3,1), b decimal(3,1), c int);
+insert into t1_decimal values
+ (1,1,23),(2,2,11),(3,3,16),
+ (1,1,12),(1,1,14),(2,3,15),
+ (2,1,13),(2,3,11),(3,3,16);
+
+create table t2_decimal (a decimal(3,1), b decimal(3,1), c int);
+insert into t2_decimal values
+ (2,1,13),(2,2,11),(3,3,16),
+ (1,3,22),(1,3,14),(2,2,15),
+ (2,1,43),(2,3,11),(2,3,16);
+
+create view v1 as select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ group by a,b having max_c < 707;
+
+create view v2 as select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ where t1.a>5 group by a,b having max_c < 707;
+
+create view v3 as select a, b, min(c) as min_c from t1
+ where t1.a<10 group by a,b having min_c > 109;
+
+create view v4 as
+ select a, b, min(max_c) as min_c from v1
+ where (v1.a<15) group by a,b;
+
+create view v_union as
+ select a, b, min(c) as c from t1
+ where t1.a<10 group by a,b having c > 109
+ union
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300;
+
+create view v2_union as
+ select a, b, min(c) as c from t1
+ where t1.a<10 group by a,b having c > 109
+ union
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300
+ union
+ select a, b, avg(c) as c from t1
+ where t1.c>300 group by a,b having c < 707;
+
+create view v3_union as
+ select a, b, (a+1) as c from t1
+ where t1.a<10
+ union
+ select a, b, c from t1
+ where t1.b>10 and t1.c>100;
+
+create view v4_union as
+ select a, b, max(c)-100 as c from t1
+ where t1.a<10 group by a,b having c > 109
+ union
+ select a, b, (c+100) as c from t1
+ where t1.b>10;
+
+create view v_double as
+ select a, avg(a/4) as avg_a, b, c from t1_double
+ where (b>12.2) group by b,c having (avg_a<22.333);
+
+create view v_char as
+ select a, b, max(c) as max_c from t1_char
+ group by a,b having max_c < 9;
+
+create view v_decimal as
+ select a, b, avg(c) as avg_c from t1_decimal
+ group by a,b having (avg_c>12);
+
+--echo # conjunctive subformula : pushing into HAVING
+let $query= select * from v1,t2 where (v1.max_c>214) and (t2.a>v1.a);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from
+ (select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ group by a,b having max_c < 707) v1,
+ t2 where (v1.a=t2.a) and (v1.max_c>300);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted or formula : pushing into HAVING
+let $query=
+ select * from v1,t2 where
+ ((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where
+ ((v1.max_c>300) and (v1.avg_c>t2.d) and (v1.b=t2.b)) or
+ ((v1.max_c<135) and (v1.max_c<t2.c) and (v1.a=t2.a));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformula : pushing into WHERE
+let $query= select * from v1,t2 where (v1.a>6) and (t2.b>v1.b);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query= select * from v2,t2 where (v2.b>25) and (t2.a<v2.a);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted or formula : pushing into WHERE
+let $query=
+ select * from v1,t2 where
+ ((v1.a>7) and (t2.c<v1.max_c)) or ((v1.a<2) and (t2.b<v1.b));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v2,t2 where
+ ((v2.a>7) and (t2.c<v2.max_c)) or ((v2.a>5) and (t2.b<v2.b));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where
+ ((v1.a>4) and (v1.b>t2.b) and (v1.max_c=t2.d)) or
+ ((v1.a<2) and (v1.max_c<t2.c) and (v1.max_c=t2.d));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformulas : pushing into HAVING and WHERE
+let $query=
+ select * from v1,t2 where (v1.a<2) and (v1.max_c>400) and (t2.b>v1.b);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v_double as v,t2_double as t where
+ (v.a=t.a) and (v.avg_a>0.45) and (v.b>10);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v_decimal as v,t2_decimal as t where
+ (v.a=t.a) and (v.avg_c>15) and (v.b>1);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted or formula : pushing into HAVING and WHERE
+let $query=
+ select * from v1,t2 where
+ ((v1.a>7) and (v1.max_c>300) and (t2.c<v1.max_c)) or
+ ((v1.a<4) and (v1.max_c<500) and (t2.b<v1.b));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where ((v1.a<2) and (v1.max_c>120)) or (v1.a>7);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted or formulas : pushing into WHERE and HAVING
+let $query=
+ select * from v1,t2 where
+ ((v1.a<2) and (v1.max_c>120) and (v1.b=t2.b)) or (v1.a>7);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where
+ ((v1.a<2) and (v1.max_c<200) and (t2.c>v1.max_c) and (v1.max_c=t2.d)) or
+ ((v1.a>4) and (v1.max_c<500) and (t2.b<v1.b) and (v1.max_c=t2.c));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # prepare of a query containing extracted or formula
+prepare stmt from "select * from v1,t2 where
+ ((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+prepare stmt from
+ "explain format=json select * from v1,t2 where
+ ((v1.max_c>400) and (t2.a>v1.a)) or ((v1.max_c<135) and (t2.a<v1.a));";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+--echo # conjunctive subformula : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v1,t2 where (t2.a=v1.a) and (v1.b=t2.b) and (v1.a=1);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query= select * from v1,t2 where (v1.a=5) and (v1.max_c=t2.d);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformula : pushing into WHERE using equalities
+let $query= select * from v1,t2 where (t2.a<5) and (v1.a=t2.a);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformula : pushing into HAVING using equalities
+let $query= select * from v1,t2 where (t2.c>150) and (v1.max_c=t2.c);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted and formula : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v1,t2 where (v1.a=v1.b) and (v1.a=t2.a) and (v1.a=3);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where (v1.a=1) and (v1.b=21) and (t2.a=2);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v_char as v,t2_char as t where
+ (v.a='c') and (v.b<'Hermes') and ((v.b=t.b) or (v.max_c>20));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted and formula : pushing into WHERE using equalities
+--echo # pushing equalities
+let $query=
+select * from v_decimal as v,t2_decimal as t where
+ (v.a=v.b) and (v.b=t.b) and ((t.b>1) or (v.a=1));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted or formula : pushing into HAVING using equalities
+let $query=
+ select * from v1,t2
+ where ((t2.a<4) and (v1.a=t2.a)) or ((t2.c>150) and (v1.max_c=t2.c));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformulas : pushing into WHERE and HAVING using equalities
+let $query=
+ select * from v1,t2
+ where ((t2.a>5) and (v1.a=t2.a)) and ((t2.c>250) and (v1.max_c=t2.c));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+--echo # pushing equalities
+let $query=
+ select * from
+ (select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ group by a,b having max_c < 707) v1,
+ t2 where (v1.a=8) and (v1.a=t2.a) and (v1.max_c=404);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+let $query=
+ select * from v1,t2 where
+ (v1.a>3) and (v1.max_c>200) and (t2.b<v1.b) and (t2.d=v1.max_c);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformula : pushing into WHERE
+--echo # extracted or formula : pushing into HAVING using equalities
+--echo # pushing equalities
+let $query=
+ select * from v_double as v,t2_double as t where
+ (v.b=v.c) and (v.c=t.c) and ((t.c>10) or (v.a=1));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # conjunctive subformula : pushing into WHERE
+--echo # extracted or formula : pushing into HAVING using equalities
+let $query=
+ select * from v_double as v,t2_double as t where
+ (((v.a>0.2) or (v.b<17)) or (t.c>17)) and (t.c=v.c) and (v.c>18);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted or formula : pushing into WHERE
+--echo # conjunctive subformula : pushing into HAVING
+--echo # pushing equalities
+let $query=
+ select * from v_decimal as v,t2_decimal as t where
+ (((v.a>4) or (v.a=2)) or (v.b>3)) and (v.avg_c=13);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from
+ (select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ where t1.a>5 group by a,b having max_c < 707) v1,
+ t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.a=v1.b);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # nothing to push
+let $query=
+ select * from v1,t2 where (t2.a<2) and (t2.c>900);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.b=t2.b);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where
+ (t2.a=v1.a) or (v1.b=t2.b) and ((v1.a=1) or (v1.a=6));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where (v1.a=1) or (v1.b=21) or (t2.a=2);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,t2 where
+ (t2.a<2) and (t2.c>900) and ((v1.a<t2.a) or (t2.a<11));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using several derived tables : nothing to push
+let $query= select * from v1,v2,t2 where
+ (v1.a=v2.a) and (v1.a=t2.a) and (v2.b<50);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,v2,t2 where
+ ((v1.a=v2.a) or (v1.a=t2.a)) and (t2.b<50) and (v1.b=v2.b);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v1,v2,t2 where
+ ((v1.a=v2.a) and (v1.a=t2.a)) or ((v2.b>13) and (t2.c<115));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using several derived tables : pushing in all tables
+--echo # conjunctive subformula : pushing into HAVING
+--echo # extracted or formula : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v1,v2,t2 where ((v1.a=v2.a) or (v1.a=t2.a)) and
+ ((v2.b<50) or (v2.b=19)) and (v1.max_c<300);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using several derived tables : pushing only in one table
+--echo # conjunctive subformula : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v1,v2,t2 where
+ (v1.a=t2.a) and (v1.a=v1.b) and (v1.a=v2.a) and (v2.max_c<300);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using several derived tables : pushing only in one table
+--echo # extracted and formula : pushing into WHERE
+--echo # conjunctive subformula : pushing into WHERE using equalities
+--echo # pushing equalities
+let $query=
+ select * from v1,v2,t2 where (v1.a=1) and (v1.b>10) and (v1.b=v2.b);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted or formula : pushing into WHERE
+--echo # conjunctive subformula : pushing into WHERE using equalities
+--echo # pushing equalities
+let $query=
+ select * from v_char as v,t2_char as t where
+ (v.a=t.a) and (t.a='b') and ((v.b='Vika') or (v.b='Ali'));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using several derived tables : pushing in all tables
+--echo # extracted or formula : pushing into WHERE
+--echo # conjunctive subformulas : pushing into HAVING
+--echo # pushing equalities
+let $query=
+ select * from v1,v2,v3,t2 where
+ ((v1.a=v2.a) or (v1.a=t2.a)) and ((v3.b<50) or (v3.b=33))
+ and (v1.max_c<500) and (v3.a=t2.a) and (v2.max_c>300);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using several derived tables : pushing in all tables
+--echo # conjunctive subformulas : pushing into HAVING
+let $query=
+ select * from
+ (select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ where t1.a>5 group by a,b having max_c < 707) v1,
+ (select a, b, min(c) as min_c from t1
+ where t1.a>5 group by a,b having min_c < 707) v2,
+ t2 where (v1.a=v2.a) and (v1.b=t2.b) and (v1.max_c>130) and (v2.min_c<130);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using several derived tables : pushing in all tables
+--echo # extracted or formulas : pushing into HAVING
+--echo # conjunctive subformula : pushing into HAVING
+let $query=
+ select * from
+ (select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ where t1.a>5 group by a,b having max_c < 707) v1,
+ (select a, b, min(c) as min_c from t1
+ where t1.a>5 group by a,b having min_c < 707) v2,
+ (select a, b, avg(c) as avg_c from t1
+ where t1.a<8 group by a,b) v3,
+ t2 where (v1.a=v2.a) and (v1.b=v3.b) and ((v3.avg_c>170) or (v3.a<5))
+ and ((v1.avg_c<400) or (v1.a>1)) and (v2.min_c<200);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted or formula : pushing into HAVING
+--echo # conjunctive subformula : pushing into WHERE
+let $query=
+ select * from
+ (select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ group by a,b having max_c < 707) v1,
+ t2 where ((v1.a=1) or (v1.max_c<300)) and (v1.b>25);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # extracted and formula : pushing into WHERE
+--echo # conjunctive subformula : pushing into HAVING
+let $query=
+ select * from
+ (select a, b, max(c) as max_c, avg(c) as avg_c from t1
+ where t1.a>5 group by a,b having max_c < 707) v1,
+ t2 where (v1.a=t2.a) and (v1.max_c>300) and (v1.b<30);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using query with union
+--echo # conjunctive subformula : pushing into WHERE
+--echo # conjunctive subformulas : pushing into HAVING and WHERE
+let $query=
+ select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (t2.c>800)
+ union
+ select * from v1,t2 where (v1.max_c>100) and (v1.a>7) and (t2.d>800);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using query with union
+--echo # extracted and formula : pushing into WHERE
+--echo # extracted or formula : pushing into HAVING
+--echo # pushing equalities
+let $query=
+ select * from v1,t2 where (v1.a<5) and (v1.b=t2.b) and (v1.b=19)
+ union
+ select * from v1,t2 where ((v1.max_c>400) or (v1.avg_c>270)) and (v1.a<t2.a);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using query with union
+--echo # extracted or formula : pushing into HAVING
+--echo # extracted or formula : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v1,t2 where
+ ((t2.a=v1.a) or (v1.b=t2.b)) and ((v1.a=1) or (v1.a=6))
+ union
+ select * from v1,t2 where ((v1.a>3) and (v1.b>27)) or (v1.max_c>550);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using query with union
+--echo # extracted or formula : pushing into HAVING
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v1,t2 where
+ ((v1.a=1) and (v1.a=t2.a)) and ((v1.max_c<500) or (v1.avg_c>500))
+ union
+ select * from v2,t2 where
+ ((v2.a<t2.b) or (v2.max_c>200)) and (v2.b>10) and (t2.a<2)
+ union
+ select * from v2,t2 where
+ (v2.max_c=t2.c) and (v2.b<10);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+let $query= select * from v_union,t2 where (v_union.a<3) and (v_union.c>100);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union
+--echo # conjunctive subformula : pushing into WHERE
+--echo # extracted or formula : pushing into HAVING
+let $query=
+ select * from v_union,t2 where
+ ((v_union.a<2) or (v_union.c>800)) and (v_union.b>12);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union
+--echo # conjunctive subformula : pushing into HAVING
+--echo # conjunctive subformula : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v_union,t2 where
+ (v_union.a=1) and (v_union.a=t2.a) and (v_union.c<200);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+let $query=
+ select * from v_char as v,t2_char as t where
+ (v.a=t.a) and (v.b='Vika') and (v.max_c>2);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union
+--echo # using several derived tables : pushing in all tables
+--echo # conjunctive subformula : pushing into WHERE using equalities
+--echo # pushing equalities
+let $query=
+ select * from v_union,v1,t2 where
+ (v_union.a=v1.a) and (v1.a=t2.a) and (t2.a=1)
+ and ((v_union.c>800) or (v1.max_c>200));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union
+--echo # extracted or formula : pushing into WHERE
+--echo # conjunctive subformula : pushing into HAVING
+--echo # pushing equalities
+let $query=
+ select * from v2_union as v,t2 where
+ ((v.a=6) or (v.a=8)) and (v.c>200) and (v.a=t2.a);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union of selects without aggregation
+--echo # extracted conjunctive predicate: pushing in WHERE of both selects
+let $query=
+ select * from v3_union as v,t2 where (v.a=t2.a) and (v.c>6);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union of selects without aggregation
+--echo # extracted conjunctive OR subformula: pushing in WHERE using equalities
+let $query=
+ select * from v3_union as v,t2 where (v.a=t2.a) and ((t2.a>1) or (v.b<20));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union of selects without aggregation
+--echo # extracted the whole condition: in WHERE of both selects
+let $query=
+ select * from v3_union as v,t2 where
+ (v.a=t2.a) and ((v.b=19) or (v.b=21)) and ((v.c<3) or (v.c>600));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union of
+--echo # a select without aggregation and a select with aggregation
+--echo # extracted conjunctive predicate: pushing in WHERE of both selects
+let $query=
+ select * from v4_union as v,t2 where (v.a=t2.a) and (v.b<20);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using derived table with union of
+--echo # a select without aggregation and a select with aggregation
+--echo # extracted subformula: pushing in WHERE of one select
+--echo # extracted subformula: pushing in HAVING of the other select
+--echo # extracted sub-subformula: pushing in WHERE of the other select
+--echo # using an equality in all pushdowns
+let $query=
+ select * from v4_union as v,t2 where
+ (v.a=t2.a) and ((t2.a<3) or (v.b<40)) and (v.c>500);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded derived table : pushing the same conditions
+--echo # using several derived tables : pushing in all tables
+--echo # conjunctive subformula : pushing into WHERE
+--echo # extracted and formula : pushing into WHERE
+let $query=
+select * from v4,v1 where
+ (v4.a<13) and (v1.a>5) and (v1.b>12);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : nothing to push
+--echo # using several derived tables : pushing only in one table
+--echo # conjunctive subformula : pushing into WHERE
+let $query=
+ select * from v4,v1,t2 where
+ (v4.a=t2.a) and (v4.a=v1.a) and (v1.b>30);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : pushing different conditions
+--echo # using several derived tables : pushing in all tables
+--echo # conjunctive subformula : pushing into WHERE using equalities
+--echo # extracted and formula : pushing into WHERE using equalities
+--echo # conjunctive subformula : pushing into HAVING
+let $query=
+ select * from v4,v1,t2 where
+ (v4.a=t2.a) and (v4.a>1) and (v4.a=v1.a) and (v4.min_c>100) and (v1.b<30);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : pushing different conditions
+--echo # using several derived tables : pushing in all tables
+--echo # extracted or formula : pushing into WHERE
+--echo # conjunctive subformula : pushing into HAVING
+let $query=
+ select * from v4,v1,t2 where
+ (((v4.b>10) and (v4.a>1)) or (v4.b<20)) and (v1.max_c>200) and (v1.a=v4.a);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : pushing different conditions
+--echo # using several derived tables : pushing only in one table
+--echo # extracted or formula : pushing into WHERE
+--echo # extracted or formula : pushing into HAVING
+let $query=
+ select * from v4,v2 where
+ ((v4.a>12) and (v4.min_c<300) and (v4.b>13)) or (v4.a<1);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : pushing different conditions
+--echo # using several derived tables : pushing only in one table
+--echo # conjunctive subformula : pushing into WHERE
+--echo # conjunctive subformula : pushing into HAVING
+--echo # pushing equalities
+let $query=
+ select * from v4,v2 where
+ (v4.a=v2.b) and (v4.a=v4.b) and (v4.min_c<100);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : pushing the same conditions
+--echo # using several derived tables : pushing in all tables
+--echo # extracted and formula : pushing into WHERE using equalities
+--echo # conjunctive subformula : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v4,v2 where
+ (v4.a=v2.b) and (v4.a=v4.b) and (v2.b<30);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : pushing the same conditions
+--echo # using several derived tables : pushing in all tables
+--echo # extracted or formula : pushing into WHERE using equalities
+--echo # extracted and formula : pushing into WHERE using equalities
+--echo # pushing equalities
+let $query=
+ select * from v4,v2 where
+ (v4.a=v2.b) and (v4.a=v4.b) and ((v2.b<30) or (v4.a>2));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : pushing the same conditions
+--echo # using several derived tables : pushing in all tables
+--echo # extracted or formula : pushing into WHERE
+--echo # conjunctive subformula : pushing into WHERE
+--echo # pushing equalities
+let $query=
+ select * from v4,v2 where
+ (((v4.a<12) and (v4.b>13)) or (v4.a>10)) and
+ (v4.min_c=v2.max_c) and (v4.min_c>100);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using embedded view : pushing the same conditions
+--echo # using several derived tables : pushing only in one table
+--echo # extracted or formula : pushing into WHERE
+let $query=
+ select * from v4,v2,t2 where
+ (((v4.a<12) and (t2.b>13)) or (v4.a>10)) and
+ (v4.min_c=t2.c) and (t2.c>100);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1,v2,v3,v4;
+drop view v_union,v2_union,v3_union,v4_union;
+drop view v_double,v_char,v_decimal;
+drop table t1,t2,t1_double,t2_double,t1_char,t2_char,t1_decimal,t2_decimal;
+
+--echo #
+--echo # MDEV-10782: condition extracted from a multiple equality
+--echo # pushed into HAVING
+--echo #
+
+CREATE TABLE t1 (i int);
+INSERT INTO t1 VALUES (1),(2);
+EXPLAIN EXTENDED
+SELECT *
+ FROM ( SELECT * FROM ( SELECT MIN(i) as f FROM t1 ) sq1 ) AS sq2
+ WHERE f = 8;
+SELECT *
+ FROM ( SELECT * FROM ( SELECT MIN(i) as f FROM t1 ) sq1 ) AS sq2
+ WHERE f = 8;
+SELECT *
+ FROM ( SELECT * FROM ( SELECT MIN(i) as f FROM t1 ) sq1 ) AS sq2
+ WHERE f = 1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-10783: pushdown into constant view
+--echo #
+
+CREATE TABLE t1 (i int) ENGINE=MyISAM;
+CREATE VIEW v AS SELECT 5;
+SELECT * FROM t1 WHERE 1 IN ( SELECT * FROM v );
+DROP VIEW v;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-10785: second execution of a query with condition
+--echo # pushed into view
+--echo #
+
+CREATE TABLE t1 (i int);
+CREATE VIEW v1 AS SELECT i FROM t1 WHERE i < 5;
+CREATE FUNCTION f (in1 int) RETURNS int RETURN in1;
+CREATE VIEW v2 AS SELECT * FROM v1 GROUP BY i;
+PREPARE stmt FROM "SELECT * FROM v2 WHERE f(0) <> 2";
+EXECUTE stmt;
+EXECUTE stmt;
+DROP FUNCTION f;
+DROP VIEW v2,v1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-10884: condition pushdown into derived specified by
+--echo # 1. unit with SELECT containing ORDER BY ... LIMIT
+--echo # 2. unit containing global ORDER BY ... LIMIT
+--echo #
+
+create table t1(a int);
+insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+select a from t1 order by a limit 5;
+
+set statement optimizer_switch='condition_pushdown_for_derived=off' for
+select * from (select a from t1 order by a limit 5) t where t.a not in (1,2,3);
+set statement optimizer_switch='condition_pushdown_for_derived=on' for
+select * from (select a from t1 order by a limit 5) t where t.a not in (1,2,3);
+
+select a from t1 where a < 4 union select a from t1 where a > 5
+ order by a limit 5;
+set statement optimizer_switch='condition_pushdown_for_derived=off' for
+select * from
+(select a from t1 where a < 4 union select a from t1 where a > 5
+ order by a limit 5) t where t.a not in (2,9);
+set statement optimizer_switch='condition_pushdown_for_derived=on' for
+select * from
+(select a from t1 where a < 4 union select a from t1 where a > 5
+ order by a limit 5) t where t.a not in (2,9);
+
+drop table t1;
+
+--echo #
+--echo # MDEV-11072: pushdown of the condition obtained
+--echo # after constant row substitution
+--echo #
+
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+CREATE OR REPLACE VIEW v2 AS SELECT * FROM t2;
+CREATE TABLE t3 (c INT) ENGINE=MyISAM;
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v3 AS SELECT * FROM t3;
+
+SELECT * FROM t1 WHERE a IN (
+ SELECT b FROM v2 WHERE b < a OR b IN (
+ SELECT c FROM v3 WHERE c = a
+ )
+);
+
+INSERT INTO t1 VALUES (2);
+INSERT INTO t2 VALUES (3), (2);
+INSERT INTO t3 VALUES (4), (1), (2), (7);
+
+SELECT * FROM t1 WHERE a IN (
+ SELECT b FROM v2 WHERE b < a OR b IN (
+ SELECT c FROM v3 WHERE c = a
+ )
+);
+
+EXPLAIN FORMAT=JSON
+SELECT * FROM t1 WHERE a IN (
+ SELECT b FROM v2 WHERE b < a OR b IN (
+ SELECT c FROM v3 WHERE c = a
+ )
+);
+
+CREATE TABLE t4 (d INT, e INT) ENGINE=MyISAM;
+INSERT INTO t4 VALUES (1,10),(3,11),(2,10),(2,20),(3,21);
+CREATE OR REPLACE VIEW v4 AS
+SELECT d, sum(e) AS s FROM t4 GROUP BY d;
+
+let $query =
+SELECT * FROM t1 WHERE a IN (
+ SELECT b FROM v2 WHERE b < a OR b IN (
+ SELECT d FROM v4 WHERE s > a
+ )
+);
+
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+DROP VIEW v2,v3,v4;
+DROP TABLE t1,t2,t3,t4;
+
+--echo #
+--echo # MDEV-10800: pushdown of the condition obtained
+--echo # after constant row substitution
+--echo #
+
+
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1);
+
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3),(4);
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
+
+SELECT * FROM
+( SELECT * FROM t1
+ WHERE EXISTS ( SELECT * FROM v2 WHERE b = a ) ) AS sq;
+
+EXPLAIN FORMAT=JSON
+SELECT * FROM
+( SELECT * FROM t1
+ WHERE EXISTS ( SELECT * FROM v2 WHERE b = a ) ) AS sq;
+
+DROP VIEW v2;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-11102: condition pushdown into materialized inner table
+--echo # of outer join is not applied as not being valid
+--echo #
+
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (0),(2);
+
+CREATE TABLE t2 (b INT);
+INSERT INTO t2 VALUES (1),(2);
+
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
+
+SELECT * FROM t1 LEFT JOIN t2 ON a = b WHERE b IS NULL;
+
+SELECT * FROM t1 LEFT JOIN v2 ON a = b WHERE b IS NULL;
+
+EXPLAIN FORMAT=JSON
+SELECT * FROM t1 LEFT JOIN v2 ON a = b WHERE b IS NULL;
+
+DROP VIEW v2;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-11103: pushdown condition with ANY subquery
+--echo #
+
+CREATE TABLE t1 (i INT);
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES (1),(2);
+
+EXPLAIN FORMAT=JSON
+SELECT * FROM v1 WHERE i <= ANY ( SELECT 3 );
+
+SELECT * FROM v1 WHERE i <= ANY ( SELECT 3 );
+
+DROP VIEW v1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-11315: condition with outer reference to mergeable derived
+--echo #
+
+CREATE TABLE t1 (pk1 INT PRIMARY KEY, a INT, b INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (10,7,1),(11,0,2);
+
+CREATE TABLE t2 (pk2 INT PRIMARY KEY, c INT, d DATETIME) ENGINE=MyISAM;
+INSERT INTO t2 VALUES
+ (1,4,'2008-09-27 00:34:58'),
+ (2,5,'2007-05-28 00:00:00'),
+ (3,6,'2009-07-25 09:21:20');
+
+CREATE VIEW v1 AS SELECT * FROM t1;
+CREATE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
+
+SELECT * FROM v1 AS sq
+ WHERE b IN ( SELECT pk2 FROM v2 WHERE c > sq.b ) OR b = 100;
+EXPLAIN FORMAT=JSON
+SELECT * FROM v1 AS sq
+ WHERE b IN ( SELECT pk2 FROM v2 WHERE c > sq.b ) OR b = 100;
+
+SELECT * FROM ( SELECT * FROM t1 ) AS sq
+ WHERE b IN ( SELECT pk2 FROM v2 WHERE c > sq.b ) OR b = 100;
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT * FROM t1 ) AS sq
+ WHERE b IN ( SELECT pk2 FROM v2 WHERE c > sq.b ) OR b = 100;
+
+DROP VIEW v1,v2;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-11313: pushdown of the condition obtained
+--echo # after constant row substitution
+--echo #
+
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE TABLE t2 (b INT) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (50);
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+
+SELECT ( SELECT COUNT(*) FROM v1 WHERE a = t2.b ) AS f FROM t2 GROUP BY f;
+EXPLAIN FORMAT=JSON
+SELECT ( SELECT COUNT(*) FROM v1 WHERE a = t2.b ) AS f FROM t2 GROUP BY f;
+
+CREATE TABLE t3 (a INT, b INT) ENGINE=MYISAM;
+INSERT INTO t3 VALUES (1,10),(3,11),(2,10),(2,20),(3,21);
+CREATE VIEW v2 AS SELECT a, sum(b) AS s FROM t3 GROUP BY a ;
+SELECT ( SELECT COUNT(*) FROM v2 WHERE s < t2.b ) AS f FROM t2 GROUP BY f;
+EXPLAIN FORMAT=JSON
+SELECT ( SELECT COUNT(*) FROM v2 WHERE s < t2.b ) AS f FROM t2 GROUP BY f;
+
+
+DROP VIEW v1,v2;
+DROP TABLE t1,t2,t3;
+
+--echo #
+--echo # MDEV-10882: pushdown of the predicate with cached value
+--echo #
+
+CREATE TABLE t1 (a INT NOT NULL, b INT NOT NULL) ENGINE=MyISAM;
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES (1,2),(3,4);
+
+CREATE TABLE t2 (c INT NOT NULL) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (5),(6);
+
+SELECT a, GROUP_CONCAT(b) FROM v1
+ WHERE b IN ( SELECT COUNT(c) FROM t2 ) GROUP BY a;
+
+EXPLAIN FORMAT=JSON
+SELECT a, GROUP_CONCAT(b) FROM v1
+ WHERE b IN ( SELECT COUNT(c) FROM t2 ) GROUP BY a;
+
+DROP VIEW v1;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-10836: pushdown of the predicate with cached value
+--echo #
+
+CREATE TABLE t (pk INT PRIMARY KEY, f INT) ENGINE=MyISAM;
+CREATE ALGORITHM=TEMPTABLE VIEW v AS SELECT * FROM t;
+INSERT INTO t VALUES (1,1),(3,2);
+
+SELECT * FROM v AS v1, v AS v2
+ WHERE v2.pk > v1.f AND v1.f IN ( SELECT COUNT(pk) FROM t );
+
+EXPLAIN FORMAT=JSON
+SELECT * FROM v AS v1, v AS v2
+ WHERE v2.pk > v1.f AND v1.f IN ( SELECT COUNT(pk) FROM t );
+
+DROP VIEW v;
+DROP TABLE t;
+
+--echo #
+--echo # MDEV-11488: pushdown of the predicate with cached value
+--echo #
+
+CREATE TABLE t1 (i INT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(3),(2);
+
+CREATE TABLE t2 (j INT, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3),(4);
+
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+
+UPDATE t2 SET j = 2 WHERE j = 3;
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+
+DROP TABLE t1,t2;
+
+CREATE TABLE t1 (i FLOAT) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1.5),(3.2),(2.71);
+
+CREATE TABLE t2 (j FLOAT, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3.2),(2.71);
+
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+
+DROP TABLE t1,t2;
+
+CREATE TABLE t1 (i DECIMAL(10,2)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1.5),(3.21),(2.47);
+
+CREATE TABLE t2 (j DECIMAL(10,2), KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (3.21),(4.55);
+
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+
+DROP TABLE t1,t2;
+
+CREATE TABLE t1 (i VARCHAR(32)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('cc'),('aa'),('ddd');
+
+CREATE TABLE t2 (j VARCHAR(16), KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('bbb'),('aa');
+
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+
+DROP TABLE t1,t2;
+
+CREATE TABLE t1 (i DATETIME) ENGINE=MyISAM;
+INSERT INTO t1 VALUES
+ ('2008-09-27 00:34:58'),('2007-05-28 00:00:00'), ('2009-07-25 09:21:20');
+
+CREATE TABLE t2 (j DATETIME, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES
+ ('2007-05-28 00:00:00'), ('2010-08-25 00:00:00');
+
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+
+DROP TABLE t1,t2;
+
+CREATE TABLE t1 (i DATE) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('2008-09-27'),('2007-05-28'), ('2009-07-25');
+
+CREATE TABLE t2 (j DATE, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('2007-05-28'), ('2010-08-25');
+
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+
+DROP TABLE t1,t2;
+
+CREATE TABLE t1 (i TIME) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('00:34:58'),('10:00:02'), ('09:21:20');
+
+CREATE TABLE t2 (j TIME, KEY(j)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES ('10:00:02'), ('11:00:10');
+
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+EXPLAIN FORMAT=JSON
+SELECT * FROM ( SELECT DISTINCT * FROM t1 ) AS sq
+ WHERE i IN ( SELECT MIN(j) FROM t2 );
+
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-11593: pushdown of condition with NULLIF
+--echo #
+
+CREATE TABLE t1 (i INT);
+CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+
+INSERT INTO t1 VALUES (2), (1);
+
+SELECT * FROM v1 WHERE NULLIF(1, i);
+EXPLAIN FORMAT=JSON
+SELECT * FROM v1 WHERE NULLIF(1, i);
+
+DROP VIEW v1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-11608: pushdown of the predicate with cached null value
+--echo #
+
+CREATE TABLE t1 (c VARCHAR(3));
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES ('foo'),('bar');
+
+CREATE TABLE t2 (c VARCHAR(3));
+INSERT INTO t2 VALUES ('foo'),('xyz');
+
+SELECT * FROM v1 WHERE v1.c IN ( SELECT MIN(c) FROM t2 WHERE 0 );
+EXPLAIN FORMAT=JSON
+SELECT * FROM v1 WHERE v1.c IN ( SELECT MIN(c) FROM t2 WHERE 0 );
+
+DROP VIEW v1;
+DROP TABLE t1,t2;
+
+CREATE TABLE t1 (d DECIMAL(10,2));
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+INSERT INTO t1 VALUES (5.37),(1.1);
+
+CREATE TABLE t2 (d DECIMAL(10,2));
+INSERT INTO t2 VALUES ('1.1'),('2.23');
+
+SELECT * FROM v1 WHERE v1.d IN ( SELECT MIN(d) FROM t2 WHERE 0 );
+
+DROP VIEW v1;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-11820: second execution of PS for query
+--echo # with false subquery predicate in WHERE
+--echo #
+
+CREATE TABLE t1 (c VARCHAR(3)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('foo'),('bar');
+CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT * FROM t1;
+CREATE TABLE t2 (a INT);
+INSERT INTO t2 VALUES (3), (4);
+
+PREPARE stmt1 FROM
+" SELECT * FROM v1 WHERE 1 IN (SELECT a FROM t2) OR c = 'foo'";
+PREPARE stmt2 FROM
+"EXPLAIN FORMAT=JSON
+ SELECT * FROM v1 WHERE 1 IN (SELECT a FROM t2) OR c = 'foo'";
+EXECUTE stmt1;
+EXECUTE stmt2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+INSERT INTO t2 SELECT a+1 FROM t2;
+EXECUTE stmt1;
+EXECUTE stmt2;
+DEALLOCATE PREPARE stmt1;
+# the result here will change after the merge with the fix for mdev-11859
+DEALLOCATE PREPARE stmt2;
+
+DROP VIEW v1;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-12373: pushdown into derived with side effects is prohibited
+--echo #
+
+CREATE TABLE sales_documents (
+ id int NOT NULL AUTO_INCREMENT,
+ sale_id int NULL DEFAULT NULL,
+ type tinyint unsigned NULL DEFAULT NULL,
+ data text NULL DEFAULT NULL COLLATE 'utf8_unicode_ci',
+ date date NULL DEFAULT NULL,
+ order_number int unsigned NULL DEFAULT NULL,
+ created_at int NULL DEFAULT NULL,
+ updated_at int NULL DEFAULT NULL,
+ generated tinyint NOT NULL DEFAULT '0',
+ synced_at int NOT NULL DEFAULT '0',
+ sum decimal(13,2) NOT NULL DEFAULT '0',
+ PRIMARY KEY (id)
+);
+
+INSERT INTO sales_documents
+(id, sale_id, type, order_number, data, created_at,
+ updated_at, date, generated, synced_at, sum)
+VALUES
+(555, 165, 3, 5, '{}', 1486538300, 1486722835, '2017-02-17', 0, 1486538313, 2320.00),
+(556, 165, 2, 3, '{}', 1486538304, 1486563125, '2017-02-08', 1, 1486538302, 2320.00),
+(557, 158, 2, 2, '{}', 1486538661, 1486538661, '2017-02-08', 0, 1486538660, 2320.00),
+(558, 171, 1, 3, '{}', 1486539104, 1488203405, '2017-02-08', 1, 1486539102, 23230.00),
+(559, 171, 2, 5, '{}', 1486549233, 1487146010, '2017-02-08', 1, 1486549225, 37690.00),
+(560, 172, 1, 1, '{}', 1486658260, 1488203409, '2017-02-09', 1, 1486658256, 40312.00),
+(561, 172, 2, 1, '{}', 1486711997, 1486711997, '2017-02-10', 1, 1486711996, 40312.00),
+(562, 172, 3, 1, '{}', 1486712104, 1486721395, '2017-02-10', 1, 1486712101, 40312.00),
+(563, 171, 3, 2, '{}', 1486712953, 1486720244, '2017-02-10', 1, 1486712910, 23230.00),
+(564, 170, 1, 2, '{}', 1486715948, 1488203410, '2017-02-10', 1, 1486715930, 28873.00),
+(565, 170, 3, 3, '{}', 1486716782, 1486717426, '2017-02-10', 1, 1486716779, 61948.00),
+(566, 166, 3, 4, '{}', 1486720947, 1486720947, '2017-02-10', 1, 1486720945, 4640.00),
+(567, 167, 3, 5, '{}', 1486722741, 1486722783, '2017-02-26', 0, 1486722738, 14755.00),
+(568, 165, 1, 4, '{}', 1486722849, 1486722849, '2017-02-10', 0, 1486722846, 2320.00),
+(569, 173, 2, 2, '{}', 1486723073, 1487071275, '2017-02-10', 1, 1486723071, 14282.00),
+(570, 173, 1, 4, '{}', 1486723100, 1488203412, '2017-02-10', 1, 1486723099, 14282.00),
+(571, 167, 2, 4, '{}', 1486730859, 1486730859, '2017-02-10', 1, 1486730856, 18655.00),
+(572, 167, 1, 5, '{}', 1486730883, 1488203412, '2017-02-10', 1, 1486730877, 18655.00),
+(573, 174, 2, 51, '{}', 1486731622, 1487060259, '2017-02-10', 1, 1486731620, 7140.00),
+(574, 174, 3, 5, '{}', 1486993472, 1486993472, '2017-02-13', 1, 1488216147, 28020.00),
+(575, 174, 1, 6, '{}', 1486993530, 1488203412, '2017-02-13', 1, 1486993505, 7140.00),
+(576, 173, 3, 6, '{}', 1487071425, 1487071425, '2017-02-14', 0, 1487071422, 14282.00),
+(577, 178, 2, 6, '{}', 1487327372, 1487327372, '2017-02-17', 1, 1487327370, 12321.00),
+(578, 177, 2, 7, '{}', 1487327394, 1487327394, '2017-02-17', 0, 1487327391, 4270.00),
+(579, 182, 3, 6, '{}', 1487750589, 1487751693, '2017-02-22', 1, 1487751688, 4270.00),
+(580, 182, 2, 7, '{}', 1487750601, 1487750663, '2017-02-22', 1, 1487750598, 4270.00),
+(581, 182, 1, 7, '{}', 1487750694, 1488203412, '2017-02-22', 1, 1487750692, 4270.00),
+(582, 185, 3, 7, '{}', 1487774051, 1487774051, '2017-02-22', 0, 1487774043, 8913.00),
+(583, 184, 3, 7, '{}', 1487774071, 1487774235, '2017-02-22', 0, 1487774093, 3285.00),
+(584, 184, 2, 8, '{}', 1487774074, 1487774074, '2017-02-22', 0, 1487774073, 3285.00),
+(585, 184, 1, 8, '{}', 1487774081, 1487774081, '2017-02-22', 0, 1487774075, 3285.00),
+(586, 193, 2, 8, '{}', 1487955294, 1487955318, '2017-02-24', 0, 1487955311, 4270.00),
+(587, 193, 1, 8, '{}', 1487955324, 1487955324, '2017-02-24', 0, 1487955320, 4270.00),
+(588, 193, 3, 7, '{}', 1487955341, 1487955341, '2017-02-24', 0, 1487955325, 4270.00),
+(589, 186, 1, 8, '{}', 1487957291, 1487957464, '2017-02-24', 0, 1487957459, 6960.00),
+(590, 186, 2, 8, '{}', 1487957308, 1487957468, '2017-02-24', 0, 1487957465, 6960.00),
+(591, 186, 3, 7, '{}', 1487957312, 1487957473, '2017-02-24', 0, 1487957469, 6960.00),
+(592, 194, 1, 8, '{}', 1488193293, 1488203412, '2017-02-27', 1, 1488193280, 2320.00),
+(593, 194, 2, 8, '{}', 1488193304, 1488193304, '2017-02-27', 1, 1488193303, 2320.00),
+(594, 210, 1, 9, '{}', 1488198896, 1488198896, '2017-02-27', 0, 1488198885, 4270.00),
+(595, 210, 2, 12, '{}', 1488198901, 1488198901, '2017-02-27', 1, 1488532585, 4270.00),
+(596, 210, 3, 10, '{}', 1488198904, 1488198904, '2017-02-27', 1, 1488532565, 4270.00),
+(597, 209, 2, 9, '{}', 1488200016, 1488450772, '2017-02-27', 1, 1488450449, 4270.00),
+(598, 209, 1, 9, '{}', 1488200020, 1488200063, '2017-02-27', 1, 1488200017, 4271.00),
+(599, 209, 3, 7, '{}', 1488200053, 1488200053, '2017-02-27', 0, 1488200021, 4271.00),
+(600, 211, 2, 10, '{}', 1488216265, 1489402027, '2017-02-27', 1, 1488216264, 2320.00),
+(601, 211, 3, 7, '{}', 1488216281, 1488216281, '2017-02-27', 1, 1488216276, 2320.00),
+(602, 211, 1, 10, '{}', 1488216283, 1488216283, '2017-02-27', 1, 1488216282, 2320.00),
+(603, 198, 2, 11, '{}', 1488280125, 1488280125, '2017-02-28', 0, 1488280095, 4270.00),
+(604, 198, 1, 11, '{}', 1488280160, 1488280160, '2017-02-28', 0, 1488280126, 4270.00),
+(605, 198, 3, 8, '{}', 1488280440, 1488280440, '2017-02-28', 0, 1488280435, 4270.00),
+(606, 212, 1, 12, '{}', 1488286301, 1489402168, '2017-02-28', 1, 1488286295, 13825.00),
+(607, 212, 3, 8, '{}', 1488289644, 1488289690, '2017-02-28', 1, 1488289642, 25295.00),
+(608, 212, 2, 13, '{}', 1488290350, 1488290431, '2017-02-28', 1, 1488290347, 13133.75),
+(609, 213, 1, 11, '{}', 1488529470, 1488529470, '2017-03-03', 1, 1488529461, 5660.00),
+(610, 213, 2, 11, '{}', 1488529484, 1488529484, '2017-03-03', 1, 1488529479, 5660.00),
+(611, 213, 3, 9, '{}', 1488529493, 1488529493, '2017-03-03', 1, 1488529489, 5660.00),
+(612, 197, 2, 13, '{}', 1489400715, 1489400715, '2017-03-13', 0, 1489398959, 4270.00),
+(613, 219, 3, 11, '{}', 1490084337, 1490181958, '2017-03-21', 1, 1490084334, 73526.00),
+(614, 216, 3, 11, '{}', 1490085757, 1490086717, '2017-03-21', 0, 1490085755, 5377.00);
+
+SELECT * FROM
+(SELECT @row := @row + 1 as row, a.* from (
+ SELECT t.order_number
+ FROM sales_documents t
+ WHERE
+ t.type = 2 AND
+ t.date >= '2017-01-01' AND
+ t.date <= '2017-12-31' AND
+ t.order_number IS NOT NULL AND
+ t.generated = 1
+ GROUP BY t.order_number
+) a, (SELECT @row := 0) r) t
+WHERE row <> order_number;
+
+DROP TABLE sales_documents;
+
+--echo #
+--echo # MDEV-12845: pushdown from merged derived using equalities
+--echo #
+
+create table t1 (a int);
+insert into t1 values
+ (4), (8), (5), (3), (10), (2), (7);
+
+create table t2 (b int, c int);
+insert into t2 values
+ (2,1), (5,2), (2,2), (4,1), (4,3),
+ (5,3), (2,4), (4,6), (2,1);
+
+create view v1 as
+select b, sum(c) as s from t2 group by b;
+
+create view v2 as
+select distinct b, c from t2;
+
+create view v3 as
+select b, max(c) as m from t2 group by b;
+
+let $q1=
+select b
+from ( select t1.a, v1.b, v1.s from t1, v1 where t1.a = v1.b ) as t
+where b > 2;
+
+eval $q1;
+eval explain format=json $q1;
+
+let $q2=
+select a
+from ( select t1.a, v1.b, v1.s from t1, v1 where t1.a = v1.b ) as t
+where a > 2;
+
+eval $q2;
+eval explain format=json $q2;
+
+let $q3=
+select a
+from ( select t1.a, v2.b, v2.c from t1, v2 where t1.a = v2.b ) as t
+where a > 2;
+
+eval $q3;
+eval explain format=json $q3;
+
+let $q4=
+select a
+from ( select t1.a, v3.b, v3.m from t1, v3 where t1.a = v3.m ) as t
+where a > 2;
+
+eval $q4;
+eval explain format=json $q4;
+
+drop view v1,v2,v3;
+drop table t1,t2;
+
+--echo #
+--echo # MDEV-13166: pushdown from merged derived
+--echo #
+
+CREATE TABLE t1 (i int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+CREATE VIEW v1 AS SELECT MAX(i) AS f FROM t1;
+
+let $q=
+SELECT * FROM ( SELECT * FROM v1 ) AS sq WHERE f > 0;
+
+eval $q;
+eval explain format=json $q;
+
+DROP VIEW v1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-13193: pushdown of equality extracted from multiple equality
+--echo #
+
+CREATE TABLE t1 (i1 int, KEY(i1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1),(2);
+
+CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (2),(4);
+
+CREATE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
+
+let $q=
+SELECT * FROM t1, ( SELECT * FROM v2 ) AS sq
+ WHERE i1 = 1 AND ( i1 = i2 OR i1 = 2 );
+
+eval $q;
+eval explain format=json $q;
+
+DROP VIEW v2;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-14237: derived with regexp_substr() in select list
+--echo #
+
+create table t1 (a char(8));
+insert into t1 values ('b'), ('a'), ('xx');
+
+let $q=
+select *
+from ( select distinct regexp_substr(t1.a,'^[A-Za-z]+') as f from t1) as t
+where t.f = 'a' or t.f = 'b';
+
+eval $q;
+eval explain format=json $q;
+
+drop table t1;
+
+--echo #
+--echo # MDEV-13454: consequence of mdev-14368 fixed for 5.5
+--echo #
+
+SET sql_mode = 'ONLY_FULL_GROUP_BY';
+
+create table t1 (id int, id2 int);
+insert into t1 values (1,1),(2,3),(3,4),(7,2);
+
+create table t2(id2 int);
+insert t2 values (1),(2),(3);
+
+let $q=
+SELECT * FROM t1
+ LEFT OUTER JOIN
+ (SELECT id2, COUNT(*) as ct FROM t2 GROUP BY id2) vc USING (id2)
+WHERE (vc.ct>0);
+
+eval $q;
+eval EXPLAIN FORMAT=JSON $q;
+
+DROP TABLE t1,t2;
+
+SET sql_mode = DEFAULT;
+
+--echo #
+--echo # MDEV-15579: incorrect removal of sub-formulas to be pushed
+--echo # into WHERE of materialized derived with GROUP BY
+--echo #
+
+CREATE TABLE t1 (a INT, b INT, c INT, d INT);
+CREATE TABLE t2 (x INT, y INT, z INT);
+
+INSERT INTO t1 VALUES (1,1,66,1), (1,1,56,2), (3,2,42,3);
+INSERT INTO t2 VALUES (1,1,66), (1,12,32);
+
+let $query=
+SELECT *
+FROM t2,
+(
+ SELECT a, b, max(c) AS max_c
+ FROM t1
+ GROUP BY a
+ HAVING max_c > 37
+) AS v1
+WHERE (v1.a=1) AND (v1.b=v1.a) AND
+ (v1.a=t2.x) AND (v1.max_c>30);
+eval $query;
+eval EXPLAIN $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+let $query=
+SELECT *
+FROM t2,
+(
+ SELECT a, b, d, max(c) AS max_c
+ FROM t1
+ GROUP BY a,d
+ HAVING max_c > 37
+) AS v1
+WHERE (v1.a=1) AND (v1.b=v1.a) AND (v1.b=v1.d) AND
+ (v1.a=t2.x) AND (v1.max_c>30);
+eval $query;
+eval EXPLAIN $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-15765: pushing condition with temporal constants
+--echo # into constant tables
+--echo #
+
+select * from (select date('2018-01-01') as d
+ union all
+ select date('2018-01-01') as d) as t
+ where t.d between date ('2017-01-01') and date ('2019-01-01');
+
+select * from (select date('2018-01-01') as d) as t
+ where t.d between date ('2017-01-01') and date ('2019-01-01');
+
+--echo #
+--echo # MDEV-16088: pushdown into derived defined in the IN subquery
+--echo #
+
+CREATE TABLE t1 (a INT, b INT);
+CREATE TABLE t2 (e INT, f INT, g INT);
+INSERT INTO t1 VALUES (1,14),(2,13),(1,19),(2,32),(3,24);
+INSERT INTO t2 VALUES (1,19,2),(3,24,1),(1,12,2),(3,11,3),(2,32,1);
+
+let $query=
+SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+ (
+ SELECT d_tab.e,d_tab.max_f
+ FROM (
+ SELECT t2.e, MAX(t2.f) AS max_f
+ FROM t2
+ GROUP BY t2.e
+ HAVING max_f>18
+ ) as d_tab
+ WHERE d_tab.e>1
+ )
+;
+eval $query;
+eval EXPLAIN $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+let $query=
+SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+ (
+ SELECT d_tab.e,d_tab.max_f
+ FROM (
+ SELECT t2.e, MAX(t2.f) AS max_f
+ FROM t2
+ GROUP BY t2.e
+ HAVING max_f>18
+ ) as d_tab
+ WHERE d_tab.max_f<25
+ )
+;
+eval $query;
+eval EXPLAIN $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+let $query=
+SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+ (
+ SELECT d_tab.e, MAX(d_tab.max_f) AS max_f
+ FROM (
+ SELECT t2.e, MAX(t2.f) as max_f, t2.g
+ FROM t2
+ GROUP BY t2.e
+ ) as d_tab
+ WHERE d_tab.e>1
+ GROUP BY d_tab.g
+ )
+;
+eval $query;
+eval EXPLAIN $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+let $query=
+SELECT * FROM t1
+WHERE (t1.a,t1.b) IN
+ (
+ SELECT d_tab.e, MAX(d_tab.max_f) AS max_f
+ FROM (
+ SELECT t2.e, MAX(t2.f) as max_f, t2.g
+ FROM t2
+ GROUP BY t2.e
+ ) as d_tab
+ WHERE d_tab.max_f>20
+ GROUP BY d_tab.g
+ )
+;
+eval $query;
+eval EXPLAIN $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-15765: pushing condition with IN subquery defined with constants
+--echo # using substitution
+--echo #
+
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (1),(2);
+SELECT * FROM
+(
+ SELECT DISTINCT * FROM t1
+) der_tab
+WHERE (a>0 AND a<2 OR a IN (2,3)) AND
+ (a=2 OR 0);
+
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-16386: pushing condition into the HAVING clause when ambiguous
+--echo # fields warning appears
+--echo #
+
+CREATE TABLE t1 (a INT, b INT);
+
+INSERT INTO t1 VALUES (1,2),(2,3),(3,4);
+
+let $query=
+SELECT * FROM
+(
+ SELECT t1.b AS a
+ FROM t1
+ GROUP BY t1.a
+) dt
+WHERE (dt.a=2);
+eval $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+let $query=
+SELECT * FROM
+(
+ SELECT t1.b AS a
+ FROM t1
+ GROUP BY t1.a
+ HAVING (t1.a<3)
+) dt
+WHERE (dt.a>1);
+eval $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+let $query=
+SELECT * FROM
+(
+ SELECT 'ab' AS a
+ FROM t1
+ GROUP BY t1.a
+) dt
+WHERE (dt.a='ab');
+eval $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+let $query=
+SELECT * FROM
+(
+ SELECT 1 AS a
+ FROM t1
+ GROUP BY t1.a
+) dt
+WHERE (dt.a=1);
+eval $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-16517: pushdown condition with the IN predicate defined
+--echo # with non-constant values
+--echo #
+
+CREATE TABLE t1 (a INT, b INT);
+INSERT INTO t1 VALUES (1,2),(1,3);
+
+let $query=
+SELECT * FROM
+(
+ SELECT t1.a
+ FROM t1
+ WHERE 1 IN (0,t1.a)
+ GROUP BY t1.a
+) AS dt1
+JOIN
+(
+ SELECT t1.a
+ FROM t1
+ WHERE 1 IN (0,t1.a)
+) AS dt2
+ON dt1.a = dt2.a;
+eval $query;
+eval EXPLAIN FORMAT=JSON $query;
+
+let $query=
+SELECT * FROM
+(
+ SELECT t1.a,MAX(t1.b)
+ FROM t1
+ GROUP BY t1.a
+) AS dt, t1
+WHERE dt.a=t1.a AND dt.a IN (1,t1.a);
+eval $query;
+eval EXPLAIN FORMAT=JSON $query;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-15087: error from inexpensive subquery before check
+--echo # for condition pushdown into derived
+--echo #
+
+CREATE TABLE t1 (i1 int, v1 varchar(1));
+INSERT INTO t1 VALUES (7,'x');
+
+CREATE TABLE t2 (i1 int);
+INSERT INTO t2 VALUES (8);
+
+CREATE TABLE t3 (i1 int ,v1 varchar(1), v2 varchar(1));
+INSERT INTO t3 VALUES (4, 'v','v'),(62,'v','k'),(7, 'n', NULL);
+
+--error ER_SUBQUERY_NO_1_ROW
+SELECT 1
+FROM (t1 AS a1
+ JOIN (((SELECT DISTINCT t3.*
+ FROM t3) AS a2
+ JOIN t1 ON (t1.v1 = a2.v2))) ON (t1.v1 = a2.v1))
+WHERE (SELECT BIT_COUNT(t2.i1)
+ FROM (t2 JOIN t3)) IS NULL;
+
+DROP TABLE t1, t2, t3;
+
+--echo #
+--echo # MDEV-16614 signal 7 after calling stored procedure, that uses regexp
+--echo #
+
+DELIMITER $$;
+CREATE PROCEDURE p1(m1 varchar(5), m2 varchar(5))
+BEGIN
+SELECT a FROM
+ (SELECT "aa" a) t
+ JOIN (SELECT "aa" b) t1 on t.a=t1.b
+WHERE t.a regexp m1 and t1.b regexp m2
+GROUP BY a;
+END$$
+DELIMITER ;$$
+CALL p1('a','a');
+DROP PROCEDURE p1;
+
+
+DELIMITER $$;
+CREATE PROCEDURE p1(m1 varchar(5))
+BEGIN
+ SELECT a FROM (SELECT "aa" a) t WHERE t.a regexp m1;
+END$$
+DELIMITER ;$$
+CALL p1('a');
+DROP PROCEDURE p1;
+
+
+SELECT a FROM (SELECT "aa" a) t WHERE REGEXP_INSTR(t.a, (SELECT MAX('aa') FROM DUAL LIMIT 1));
+
+
+DELIMITER $$;
+CREATE OR REPLACE FUNCTION f1(a VARCHAR(10), b VARCHAR(10)) RETURNS INT
+BEGIN
+ RETURN 1;
+END;$$
+CREATE OR REPLACE PROCEDURE p1(m1 varchar(5))
+BEGIN
+ SELECT a FROM (SELECT "aa" a) t WHERE f1(t.a, m1);
+END$$
+DELIMITER ;$$
+CALL p1('a');
+DROP PROCEDURE p1;
+DROP FUNCTION f1;
+
+
+DELIMITER $$;
+CREATE OR REPLACE FUNCTION f1(a VARCHAR(10), b VARCHAR(10)) RETURNS INT
+BEGIN
+ RETURN 1;
+END;$$
+DELIMITER ;$$
+SELECT a FROM (SELECT "aa" a) t WHERE f1(t.a, (SELECT MAX('aa') FROM DUAL LIMIT 1));
+DROP FUNCTION f1;
+
+--echo #
+--echo # MDEV-17011: condition pushdown into materialized derived used
+--echo # in INSERT SELECT, multi-table UPDATE and DELETE
+--echo #
+
+CREATE TABLE t1 (a int ,b int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES
+ (1, 1), (1, 2), (2, 1), (2, 2), (3,1), (3,3), (4,2);
+
+CREATE TABLE t2 (a int) ENGINE MYISAM;
+INSERT INTO t2 VALUES
+ (3), (7), (1), (4), (1);
+
+CREATE TABLE t3 (a int, b int) ENGINE MYISAM;
+
+let $q1=
+INSERT INTO t3
+SELECT * FROM (SELECT a, count(*) as c FROM t1 GROUP BY a) t WHERE a<=2;
+
+eval EXPLAIN FORMAT=JSON $q1;
+eval $q1;
+
+SELECT * FROM t3;
+
+let $q2=
+UPDATE t2, (SELECT a, count(*) as c FROM t1 GROUP BY a) t SET t2.a=t.c+10
+ WHERE t2.a= t.c and t.a>=3;
+
+eval EXPLAIN FORMAT=JSON $q2;
+eval $q2;
+
+SELECT * FROM t2;
+
+let $q3=
+DELETE t2 FROM t2, (SELECT a, count(*) as c FROM t1 GROUP BY a) t
+ WHERE t2.a= t.c+9 and t.a=2;
+
+eval EXPLAIN FORMAT=JSON $q3;
+eval $q3;
+
+SELECT * FROM t2;
+
+DROP TABLE t1,t2,t3;
+
+--echo #
+--echo # MDEV-16765: pushdown condition with the CASE structure
+--echo # defined with Item_cond item
+--echo #
+
+CREATE TABLE t1(a INT, b INT);
+INSERT INTO t1 VALUES (1,2), (3,4), (2,3);
+
+LET $query=
+SELECT *
+FROM
+(
+ SELECT CASE WHEN ((tab2.max_a=1) OR (tab2.max_a=2))
+ THEN 1 ELSE 0 END AS max_a,b
+ FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+EVAL $query;
+EVAL EXPLAIN FORMAT=JSON $query;
+
+LET $query=
+SELECT *
+FROM
+(
+ SELECT CASE WHEN ((tab2.max_a=1) OR ((tab2.max_a>2) AND (tab2.max_a<4)))
+ THEN 1 ELSE 0 END AS max_a,b
+ FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+EVAL $query;
+EVAL EXPLAIN FORMAT=JSON $query;
+
+LET $query=
+SELECT *
+FROM
+(
+ SELECT CASE WHEN ((tab2.max_a>1) AND ((tab2.max_a=2) OR (tab2.max_a>2)))
+ THEN 1 ELSE 0 END AS max_a,b
+ FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+EVAL $query;
+EVAL EXPLAIN FORMAT=JSON $query;
+
+LET $query=
+SELECT *
+FROM
+(
+ SELECT CASE WHEN ((tab2.b=2) OR (tab2.b=4))
+ THEN 1 ELSE 0 END AS max_a,b
+ FROM (SELECT MAX(a) as max_a,b FROM t1 GROUP BY t1.b) AS tab2
+) AS tab1
+WHERE (tab1.max_a=1);
+EVAL $query;
+EVAL EXPLAIN FORMAT=JSON $query;
+
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-16803: pushdown condition with IN predicate in the derived table
+--echo # defined with several SELECT statements
+--echo #
+
+CREATE TABLE t1 (a INT, b INT);
+INSERT INTO t1 VALUES (1,2),(3,2),(1,1);
+
+SELECT * FROM
+(
+ SELECT a,b,1 as c
+ FROM t1
+ UNION ALL
+ SELECT a,b,2 as c
+ FROM t1
+) AS tab
+WHERE ((a,b) IN ((1,2),(3,2)));
+
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-17354: INSERT SELECT with condition pushdown into derived
+--echo #
+
+CREATE TABLE t1 (f INT NOT NULL);
+INSERT INTO t1 VALUES (3), (7), (3);
+
+CREATE ALGORITHM= TEMPTABLE VIEW v1 AS SELECT * FROM ( SELECT * FROM t1 ) AS sq;
+
+let $q1=
+INSERT INTO t1
+SELECT * FROM ( SELECT t1.f FROM v1 JOIN t1 ) AS t WHERE f IS NOT NULL;
+
+eval $q1;
+eval EXPLAIN $q1;
+eval EXPLAIN FORMAT=JSON $q1;
+SELECT * FROM t1;
+
+DELETE FROM t1;
+INSERT INTO t1 VALUES (3), (7), (3);
+
+let $q2=
+INSERT INTO t1
+SELECT * FROM ( SELECT t1.f FROM v1 JOIN t1 ON v1.f=t1.f) AS t
+ WHERE f IS NOT NULL;
+
+eval $q2;
+eval EXPLAIN FORMAT=JSON $q2;
+SELECT * FROM t1;
+
+DROP VIEW v1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-17574: pushdown into derived from mergeable view
+--echo # used in multi-table UPDATE
+--echo # pushdown into materialized derived from mergeable view
+--echo # used in SELECT
+--echo #
+
+CREATE TABLE t1 (f1 text, f2 int);
+INSERT INTO t1 VALUES ('x',1), ('y',2);
+
+CREATE VIEW v1 AS SELECT f2 FROM ( SELECT f2 FROM t1 ) AS t;
+let $q1 =
+UPDATE v1, t1 SET t1.f1 = 'z' WHERE v1.f2 < 2 AND t1.f2 = v1.f2;
+eval $q1;
+eval EXPLAIN FORMAT=JSON $q1;
+
+SELECT * FROM t1;
+
+CREATE VIEW v2 AS SELECT f2 FROM ( SELECT DISTINCT f2 FROM t1 ) AS t;
+let $q2 =
+SELECT * FROM v2, t1 WHERE v2.f2 < 2 AND t1.f2 = v2.f2;
+eval $q2;
+eval EXPLAIN FORMAT=JSON $q2;
+
+DROP VIEW v1,v2;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-18383: pushdown condition with the IF structure
+--echo # defined with Item_cond item
+--echo #
+
+CREATE TABLE t1(a INT, b INT);
+CREATE TABLE t2(c INT, d INT);
+INSERT INTO t1 VALUES (1,2),(3,4),(5,6);
+INSERT INTO t2 VALUES (1,3),(3,7),(5,1);
+
+SELECT *
+FROM t1,
+(
+ SELECT MAX(d) AS max_d,c
+ FROM t2
+ GROUP BY c
+) AS tab
+WHERE t1.a=tab.c AND
+ IF(2,t1.a=1 OR t1.b>5,1=1);
+
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-19139: pushdown condition with Item_func_set_user_var
+--echo #
+
+CREATE TABLE t1 (a INT, b INT);
+CREATE VIEW v1 AS SELECT a, MAX(b) FROM t1 GROUP BY a;
+
+SELECT * FROM (SELECT 1 FROM v1 UNION (SELECT 1 FROM v1 WHERE @a := uuid())) dt;
+EXPLAIN FORMAT=JSON
+SELECT * FROM (SELECT 1 FROM v1 UNION (SELECT 1 FROM v1 WHERE @a := uuid())) dt;
+
+DROP TABLE t1;
+DROP VIEW v1;
+
+--echo #
+--echo # MDEV-21388 Wrong result of DAYNAME()=xxx in combination with condition_pushdown_for_derived=on
+--echo #
+
+CREATE TABLE t1 (a INT, b DATE, c INT);
+INSERT INTO t1 VALUES
+ (1,'2001-01-21',345),
+ (6,'2001-01-20',315),
+ (6,'2001-01-20',214);
+
+CREATE TABLE t2 (a INT, b INT);
+INSERT INTO t2 VALUES (2,19), (7,20);
+CREATE VIEW v1 AS SELECT a, b, max(c) AS max_c FROM t1
+ GROUP BY a,b HAVING max_c < 707;
+
+SELECT *, dayname(v1.b) FROM v1,t2 WHERE (v1.max_c>214) AND (t2.a>v1.a);
+
+SET optimizer_switch='condition_pushdown_for_derived=off';
+SELECT *, dayname(v1.b) FROM v1,t2 WHERE (v1.max_c>214) AND (t2.a>v1.a) AND dayname(v1.b)='Sunday';
+
+SET optimizer_switch='condition_pushdown_for_derived=on';
+SELECT *, dayname(v1.b) FROM v1,t2 WHERE (v1.max_c>214) AND (t2.a>v1.a) AND dayname(v1.b)='Sunday';
+
+DROP VIEW v1;
+DROP TABLE t1, t2;
+
+SET optimizer_switch=DEFAULT;
+
+
+
+--echo #
+--echo # MDEV-17177: an attempt to push down IN predicate when one of
+--echo # the arguments is too complex to be cloned
+--echo #
+
+CREATE TABLE t1 (a VARCHAR(8));
+INSERT INTO t1 VALUES ('abc'),('def');
+CREATE VIEW v1 AS SELECT * FROM t1 GROUP BY a;
+
+SELECT * FROM v1 WHERE IF( a REGEXP 'def', 'foo', a ) IN ('abc', 'foobar');
+
+DROP VIEW v1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-19179: pushdown into UNION of aggregation selects whose
+--echo # corresponding columns have different names
+--echo #
+
+create table t1 (a int);
+insert into t1 values (3), (7), (1);
+
+let $q=
+select *
+from (select min(a) as x from t1 union all select max(a) as y from t1) t
+where x>0;
+
+eval $q;
+eval explain extended $q;
+
+eval prepare stmt from "$q";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+create view v1(m) as
+select min(a) as x from t1 union all select max(a) as y from t1;
+select * from v1 where m > 0;
+
+drop view v1;
+drop table t1;
+
+--echo #
+--echo # MDEV-25635: pushdown into grouping view using aggregate functions
+--echo # with constant arguments via a mergeable derived table
+--echo #
+
+create table t1 (a int);
+insert into t1 values (3), (7), (1), (3), (7), (7), (3);
+
+create view v1 as select a, sum(1) as f, sum(1) as g from t1 group by a;
+select * from v1;
+let $q1=
+select * from (select * from v1) as dt where a=f and a=g;
+eval $q1;
+eval explain extended $q1;
+
+create view v2 as select a, min(1) as f, min(1) as g from t1 group by a;
+select * from v2;
+let $q2=
+select * from (select * from v2) as dt where a=f and a=g;
+eval $q2;
+eval explain extended $q2;
+
+drop view v1,v2;
+drop table t1;
+
++--echo #
++--echo # MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
++--echo #
++create function f1(a int) returns int DETERMINISTIC return (a+1);
++
++create table t1 (
++ pk int primary key,
++ a int,
++ b int,
++ key(a)
++);
++
++create table t2(a int);
++insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
++
++create table t3(a int);
++insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
++
++insert into t1 select a,a,a from t3;
++
++create view v1 as
++select
++ t1.a as col1,
++ f1(t1.b) as col2
++from
++ t1;
++
++create view v2 as
++select
++ t1.a as col1,
++ f1(t1.b) as col2
++from
++ t1;
++create view v3 as
++select col2, col1 from v1
++union all
++select col2, col1 from v2;
++
++explain select * from v3 where col1=123;
++
++--echo # This must use ref accesses for reading table t1, not full scans:
++explain format=json
++select * from v3 where col1=123 and col2=321;
++
++drop function f1;
++drop view v1,v2,v3;
++drop table t1, t2,t3;
++
++--echo #
++--echo # Another testcase, with pushdown through GROUP BY
++--echo #
++create table t1 (a int, b int);
++insert into t1 values (1,1),(2,2),(3,3);
++
++create function f1(a int) returns int DETERMINISTIC return (a+1);
++
++create view v2(a, a2, s) as
++select a, f1(a), sum(b) from t1 group by a, f1(a);
++
++--echo # Here,
++--echo # "(s+1) > 10" will be pushed into HAVING
++--echo # "a > 1" will be pushed all the way to the table scan on t1
++--echo # "a2>123" will be pushed into HAVING (as it refers to an SP call which
++--echo # prevents pushing it to the WHERE)
++explain format=json
++select * from v2 where (s+1) > 10 AND a > 1 and a2>123;
++
++drop view v2;
++drop function f1;
++drop table t1;
+--echo # End of 10.2 tests
+
+--echo #
+--echo # MDEV-14579: pushdown conditions into materialized views/derived tables
+--echo # that are defined with EXIST or/and INTERSECT
+--echo #
+
+create table t1 (a int, b int, c int);
+create table t2 (a int, b int, c int);
+
+insert into t1 values
+ (1,21,345), (1,33,7), (8,33,114), (1,21,500), (1,19,117), (5,14,787),
+ (8,33,123), (9,10,211), (5,16,207), (1,33,988), (5,27,132), (1,21,104),
+ (6,20,309), (6,20,315), (1,21,101), (4,33,404), (9,10,800), (1,21,123);
+
+insert into t2 values
+ (2,3,207), (1,16,909), (5,14,312),
+ (5,33,207), (6,20,211), (1,19,132),
+ (8,33,117), (3,21,231), (6,23,303);
+
+create view v1 as
+ select a, b, min(c) as c from t1
+ where t1.a<9 group by a,b having c < 300
+ intersect
+ select a, b, min(c) as c from t1
+ where t1.b>10 group by a,b having c > 100;
+
+--echo # using intersect in view definition
+--echo # conjunctive subformulas : pushing into WHERE
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using intersect in view definition
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # pushing equalities
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a=8);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using intersect in view definition
+--echo # conjunctive subformulas : pushing into WHERE using equalities
+let $query= select * from v1,t2 where (v1.a=t2.a) and (t2.a=8);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using intersect in view definition
+--echo # conjunctive subformulas : pushing into HAVING
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.c>200);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using intersect in view definition
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # conjunctive subformulas : pushing into HAVING
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>110);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using intersect in view definition
+--echo # extracted or formula : pushing into WHERE
+let $query=
+ select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using intersect in view definition
+--echo # extracted or formula : pushing into HAVING
+let $query=
+ select * from v1,t2 where
+ (v1.a=t2.a) and ((v1.c>200) or (v1.c<105));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using intersect in view definition
+--echo # extracted or formula : pushing into WHERE
+--echo # extracted or formula : pushing into HAVING using equalities
+--echo # pushing equalities
+let $query=
+ select * from v1,t2 where
+ ((v1.a>3) and (t2.c>110) and (v1.c=t2.c)) or
+ ((v1.a=1) and (v1.c<110));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using intersect in view definition
+--echo # prepare of a query
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # conjunctive subformulas : pushing into HAVING
+prepare stmt from "select * from v1,t2
+ where (v1.a=t2.a) and (v1.a<5) and (v1.c>110);";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+--echo # using intersect in derived table definition
+--echo # extracted or formula : pushing into WHERE using equalities
+--echo # extracted or formula : pushing into HAVING
+--echo # pushing equalities
+let $query=
+ select *
+ from t2,
+ (select a, b, min(c) as c from t1
+ where t1.a<9 group by a,b having c < 300
+ intersect
+ select a, b, min(c) as c from t1
+ where t1.b>10 group by a,b having c > 100) as d1
+ where
+ (d1.b=t2.b) and
+ (((t2.b>13) and (t2.c=909)) or
+ ((d1.a<4) and (d1.c<200)));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.a<9 group by a,b having c > 200
+ except
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300;
+
+--echo # using except in view definition
+--echo # conjunctive subformulas : pushing into WHERE
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a<5);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using except in view definition
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # pushing equalities
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a=6);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using except in view definition
+--echo # conjunctive subformulas : pushing into WHERE using equalities
+let $query= select * from v1,t2 where (v1.a=t2.a) and (t2.a=6);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using except in view definition
+--echo # conjunctive subformulas : pushing into HAVING
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.c>500);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using except in view definition
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # conjunctive subformulas : pushing into HAVING
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a<5) and (v1.c>500);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using except in view definition
+--echo # extracted or formula : pushing into WHERE
+let $query=
+ select * from v1,t2 where (v1.a=t2.a) and ((v1.b>27) or (v1.b<19));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using except in view definition
+--echo # extracted or formula : pushing into HAVING
+let $query=
+ select * from v1,t2 where
+ (v1.a=t2.a) and ((v1.c<400) or (v1.c>800));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using except in view definition
+--echo # extracted or formula : pushing into WHERE
+--echo # extracted or formula : pushing into HAVING using equalities
+--echo # pushing equalities
+let $query=
+ select * from v1,t2 where
+ (v1.c=t2.c) and
+ ((v1.a>1) and (t2.c<500)) or
+ ((v1.a=1) and (v1.c>500));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+--echo # using except in view definition
+--echo # prepare of a query
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # conjunctive subformulas : pushing into HAVING
+prepare stmt from "select * from v1,t2
+ where (v1.a=t2.a) and (v1.a<5) and (v1.c>500);";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+--echo # using except in view definition
+--echo # extracted or formula : pushing into WHERE using equalities
+--echo # extracted or formula : pushing into HAVING
+--echo # pushing equalities
+let $query=
+ select *
+ from t2,
+ (select a, b, max(c) as c from t1
+ where t1.a<9 group by a,b having c > 200
+ except
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300) as d1
+ where
+ (d1.b=t2.b) and
+ (((t2.b>13) and (t2.c=988)) or
+ ((d1.a>4) and (d1.c>500)));
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using union and intersect in view definition
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, min(c) as c from t1
+ where t1.a<9 group by a,b having c > 200
+ union
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300
+ intersect
+ select a, b, max(c) as c from t1
+ where t1.a>3 group by a,b having c < 530;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using union and intersect in view definition
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, min(c) as c from t1
+ where t1.a<9 group by a,b having c > 200
+ intersect
+ select a, b, max(c) as c from t1
+ where t1.a>3 group by a,b having c < 500
+ union
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using union and except in view definition
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, min(c) as c from t1
+ where t1.a<9 group by a,b having c > 200
+ union
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300
+ except
+ select a, b, max(c) as c from t1
+ where t1.a>3 group by a,b having c < 530;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>5) and (v1.c>200);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using union and except in view definition
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, min(c) as c from t1
+ where t1.a<9 group by a,b having c > 200
+ except
+ select a, b, max(c) as c from t1
+ where t1.a>3 group by a,b having c < 500
+ union
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<200);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using except and intersect in view definition
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300
+ intersect
+ select a, b, max(c) as c from t1
+ where t1.a<7 group by a,b having c < 500
+ except
+ select a, b, max(c) as c from t1
+ where t1.a<9 group by a,b having c > 150;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<150);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using except and intersect in view definition
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300
+ except
+ select a, b, max(c) as c from t1
+ where t1.a<9 group by a,b having c > 150
+ intersect
+ select a, b, max(c) as c from t1
+ where t1.a<7 group by a,b having c < 500;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using except, intersect and union in view definition
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300
+ except
+ select a, b, max(c) as c from t1
+ where t1.a<9 group by a,b having c > 150
+ intersect
+ select a, b, max(c) as c from t1
+ where t1.a<7 group by a,b having c < 500
+ union
+ select a, b, max(c) as c from t1
+ where t1.a<7 group by a,b having c < 120;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.c<130);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using intersect in view definition
+--echo # using embedded view
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300
+ intersect
+ select a, b, max(c) as c from t1
+ where t1.a<9 group by a,b having c > 120;
+
+create view v2 as
+ select a, b, max(c) as c from v1
+ where v1.a<7 group by a,b;
+
+let $query= select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1,v2;
+
+--echo # using except in view definition
+--echo # using embedded view
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c < 300
+ except
+ select a, b, max(c) as c from t1
+ where t1.a<9 group by a,b having c > 150;
+
+create view v2 as
+ select a, b, max(c) as c from v1
+ where v1.a<7 group by a,b;
+
+let $query= select * from v2,t2 where (v2.a=t2.a) and (v2.a>4) and (v2.c<150);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1,v2;
+
+--echo # using intersect in view definition
+--echo # conditions are pushed in different parts of selects
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.a<9 group by a having c > 300
+ intersect
+ select a, b, max(c) as c from t1
+ where t1.b<21 group by b having c > 200;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>4) and (v1.b>12) and (v1.c<450);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using except in view definition
+--echo # conditions are pushed in different parts of selects
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.b>20 group by a having c > 300
+ except
+ select a, b, max(c) as c from t1
+ where t1.a<7 group by b having c > 150;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a<2) and (v1.b<30) and (v1.c>450);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using except and union in view definition
+--echo # conditions are pushed in different parts of selects
+--echo # conjunctive subformulas : pushing into HAVING
+--echo # extracted or formula : pushing into WHERE
+--echo # extracted or formula : pushing into HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.b>20 group by a having c > 300
+ except
+ select a, b, max(c) as c from t1
+ where t1.a<7 group by b having c > 150;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and ((v1.a<2) or (v1.a<5)) and (v1.c>450);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using union and intersect in view definition
+--echo # conditions are pushed in different parts of selects
+--echo # conjunctive subformulas : pushing into WHERE and HAVING
+create view v1 as
+ select a, b, max(c) as c from t1
+ where t1.a<9 group by a having c > 100
+ intersect
+ select a, b, max(c) as c from t1
+ where t1.a>3 group by b having c < 800
+ union
+ select a, b, max(c) as c from t1
+ where t1.b>10 group by a,b having c > 300;
+
+let $query= select * from v1,t2 where (v1.a=t2.a) and (v1.a>1) and (v1.b > 12) and (v1.c>400);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+create table t3 (a int, b int, c int);
+insert into t3 values
+ (1,21,345), (2,33,7), (8,33,114), (3,21,500), (1,19,107), (5,14,787),
+ (4,33,123), (9,10,211), (11,16,207), (10,33,988), (5,27,132), (12,21,104),
+ (6,20,309), (16,20,315), (16,21,101), (18,33,404), (19,10,800), (10,21,123),
+ (17,11,708), (6,20,214);
+
+create index i1 on t3(a);
+
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # pushed condition gives range access
+create view v1 as
+ select a, b, max(c) as max_c from t3
+ where a>0 group by a;
+
+let $query= select * from v1,t2 where (v1.b=t2.b) and (v1.a<5);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using union in view definition
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # pushed condition gives range access
+create view v1 as
+ select a, b, max(c) as c from t3
+ where t3.a>1 group by a
+ union
+ select a, b, max(c) as c from t3
+ where t3.a>2 group by a;
+
+let $query= select * from v1,t2 where (v1.b=t2.b) and (v1.a<4);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+--echo # using union in view definition
+--echo # conjunctive subformulas : pushing into WHERE
+--echo # pushed condition gives range access in one of the selects
+create view v1 as
+ select a, b, max(c) as c from t3
+ where t3.a>1 group by a
+ union
+ select a, b, max(c) as c from t3
+ where t3.b<21 group by b;
+
+let $query= select * from v1,t2 where (v1.b=t2.b) and (v1.a<3);
+eval $no_pushdown $query;
+eval $query;
+eval explain $query;
+eval explain format=json $query;
+
+drop view v1;
+
+alter table t3 drop index i1;
+
+drop table t1,t2,t3;
+
+--echo #
+--echo # MDEV-10855: Pushdown into derived with window functions
+--echo #
+
+set @save_optimizer_switch= @@optimizer_switch;
+set optimizer_switch='split_materialized=off';
+
+create table t1 (a int, c varchar(16));
+insert into t1 values
+(8,'aa'), (5,'cc'), (1,'bb'), (2,'aa'), (9,'cc'),
+(7,'aa'), (2,'aa'), (7,'bb');
+
+create table t2 (a int, b int, c varchar(16), index idx(a,c));
+insert into t2 values
+ (7,10,'cc'), (1,20,'aa'), (2,23,'bb'), (7,18,'cc'), (1,30,'bb'),
+ (4,71,'xx'), (3,15,'aa'), (7,82,'bb'), (8,12,'dd'), (4,15,'aa'),
+ (11,33,'yy'), (10,42,'zz'), (4,53,'xx'), (10,17,'yy'), (7,12,'bb'),
+ (8,20,'dd'), (7,32,'bb'), (1,50,'aa'), (3,40,'bb'), (3,77,'aa');
+
+let $q1=
+select * from (select a, c, sum(b) over (partition by a,c) from t2) as t
+ where t.a > 2 and t.c in ('aa','bb','cc');
+
+--sorted_result
+eval $no_pushdown $q1;
+--sorted_result
+eval $q1;
+eval explain $q1;
+eval explain format=json $q1;
+
+let $q2=
+select * from
+(
+ select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+ union all
+ select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+
+--sorted_result
+eval $no_pushdown $q2;
+--sorted_result
+eval $q2;
+eval explain $q2;
+eval explain format=json $q2;
+
+let $q3=
+select *
+from (select a, c, sum(b) over (partition by a,c) as s from t2) as t, t1
+ where t1.a=t.a and t1.c=t.c and t1.c in ('aa','bb','cc');
+
+eval $no_pushdown $q3;
+eval $q3;
+eval explain $q3;
+eval explain format=json $q3;
+
+let $q4=
+select * from
+(
+ select 1 as n, a, c, sum(b) over (partition by a,c) as s from t2
+ union all
+ select 2 as n, a, c, sum(b) over (partition by a) as s from t2
+ union all
+ select 3 as n, a, c, sum(b) as s from t2 group by a
+) as t
+where t.a > 2 and t.c in ('aa','bb','cc');
+
+--sorted_result
+eval $no_pushdown $q4;
+--sorted_result
+eval $q4;
+eval explain $q4;
+eval explain format=json $q4;
+
+let $q5=
+select * from (select a, c,
+ sum(b) over (partition by a,c) as sum_b,
+ avg(b) over (partition by a,c) as avg_b
+ from t2 ) as t
+ where t.a > 2 and t.c in ('aa','bb','cc');
+
+--sorted_result
+eval $no_pushdown $q5;
+--sorted_result
+eval $q5;
+eval explain $q5;
+eval explain format=json $q5;
+
+let $q6=
+select * from (select a, c,
+ sum(b) over (partition by a,c) as sum_b,
+ avg(b) over (partition by a) as avg_b
+ from t2 ) as t
+ where t.a > 2 and t.c in ('aa','bb','cc');
+
+--sorted_result
+eval $no_pushdown $q6;
+--sorted_result
+eval $q6;
+eval explain $q6;
+eval explain format=json $q6;
+
+let $q7=
+select * from (select a, c,
+ sum(b) over (partition by a,c) as sum_b,
+ avg(b) over (partition by c) as avg_b
+ from t2 ) as t
+ where t.a > 2 and t.c in ('aa','bb','cc');
+
+--sorted_result
+eval $no_pushdown $q7;
+--sorted_result
+eval $q7;
+eval explain $q7;
+eval explain format=json $q7;
+
+drop table t1,t2;
+
+set optimizer_switch= @save_optimizer_switch;
+
+--echo #
+--echo # MDEV-13369: Optimization for equi-joins of grouping derived tables
+--echo # (Splitting derived tables / views with GROUP BY)
+--echo # MDEV-13389: Optimization for equi-joins of derived tables with WF
+--echo # (Splitting derived tables / views with window functions)
+--echo #
+
+let
+$no_splitting= set statement optimizer_switch='split_materialized=off' for;
+
+create table t1 (a int, b int, index idx_b(b)) engine=myisam;
+insert into t1 values
+(8,3), (5,7), (1,2), (2,1), (9,7), (7,5), (2,2), (7,3),
+(9,3), (8,1), (4,5), (2,3);
+
+create table t2 (a int, b int, c char(127), index idx_a(a)) engine=myisam;
+insert into t2 values
+ (7,10,'x'), (1,20,'a'), (2,23,'b'), (7,18,'z'), (1,30,'c'),
+ (4,71,'d'), (3,15,'x'), (7,82,'y'), (8,12,'t'), (4,15,'b'),
+ (11,33,'a'), (10,42,'u'), (4,53,'p'), (10,17,'r'), (2,90,'x'),
+ (17,10,'s'), (11,20,'v'), (12,23,'y'), (17,18,'a'), (11,30,'d'),
+ (24,71,'h'), (23,15,'i'), (27,82,'k'), (28,12,'p'), (24,15,'q'),
+ (31,33,'f'), (30,42,'h'), (40,53,'m'), (30,17,'o'), (21,90,'b'),
+ (37,10,'e'), (31,20,'g'), (32,23,'f'), (37,18,'n'), (41,30,'l'),
+ (54,71,'j'), (53,15,'w'), (57,82,'z'), (58,12,'k'), (54,15,'p'),
+ (61,33,'c'), (60,42,'a'), (62,53,'x'), (67,17,'g'), (64,90,'v');
+
+insert into t2 select a+10, b+10, concat(c,'f') from t2;
+
+analyze table t1,t2;
+
+let $q1=
+select t1.a,t.s,t.m
+from t1 join
+ (select a, sum(t2.b) as s, min(t2.c) as m from t2 group by t2.a) t
+ on t1.a=t.a
+where t1.b < 3;
+
+eval $no_splitting $q1;
+eval $q1;
+eval explain extended $q1;
+eval explain format=json $q1;
+eval prepare stmt from "$q1";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+let $q10=
+select t1.a,t.s,t.m
+from t1 join
+ (select a, sum(t2.b) as s, min(t2.b) as m from t2 group by t2.a) t
+ on t1.a=t.a
+where t1.b <= 5;
+
+eval $no_splitting $q10;
+eval $q10;
+eval explain extended $q10;
+eval explain format=json $q10;
+eval prepare stmt from "$q10";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+delete from t1 where t1.b between 2 and 5;
+
+let $q2=
+select t1.a,t.max,t.min
+from t1 left join
+ (select a, max(t2.b) max, min(t2.b) min from t2 group by t2.a) t
+ on t1.a=t.a;
+
+eval $no_splitting $q2;
+eval $q2;
+eval explain extended $q2;
+eval explain format=json $q2;
+
+create table t3 (a int, b int, c char(127), index idx_b(b)) engine=myisam;
+insert into t3 values
+(8,11,'aa'), (5,15,'cc'), (1,14,'bb'), (2,12,'aa'), (7,17,'cc'),
+(7,18,'aa'), (2,11,'aa'), (7,10,'bb'), (3,11,'dd'), (4,12,'ee'),
+(5,14,'dd'), (9,12,'ee');
+
+create table t4 (a int, b int, c char(127), index idx(a,c)) engine=myisam;
+insert into t4 values
+ (7,10,'cc'), (1,20,'aa'), (2,23,'bb'), (7,18,'cc'), (1,30,'bb'),
+ (4,71,'xx'), (3,15,'aa'), (7,82,'aa'), (8,12,'dd'), (4,15,'aa'),
+ (11,33,'yy'), (10,42,'zz'), (4,53,'xx'), (10,17,'yy'), (7,12,'cc'),
+ (8,20,'dd'), (7,32,'bb'), (1,50,'aa'), (3,40,'bb'), (3,77,'aa');
+
+insert into t4 select a+10, b+10, concat(c,'f') from t4;
+
+analyze table t3,t4;
+
+let $q3=
+select t3.a,t3.c,t.max,t.min
+from t3 join
+ (select a, c, max(b) max, min(b) min from t4 group by a,c) t
+ on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+
+eval $no_splitting $q3;
+eval $q3;
+eval explain extended $q3;
+eval explain format=json $q3;
+
+let $q30=
+select t3.a,t3.c,t.max,t.min
+from t3 join
+ (select a, c, max(b) max, min(b) min from t4 group by a,c) t
+ on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+
+eval $no_splitting $q30;
+eval $q30;
+eval explain extended $q30;
+eval explain format=json $q30;
+
+let $q4=
+select t3.a,t3.c,t.max,t.min
+from t3 join
+ (select a, c, max(b) max, min(b) min from t4 group by c,a) t
+ on t3.a=t.a and t3.c=t.c
+where t3.b > 15;
+
+eval $no_splitting $q4;
+eval $q4;
+eval explain extended $q4;
+eval explain format=json $q4;
+
+let $q40=
+select t3.a,t3.c,t.max,t.min
+from t3 join
+ (select a, c, max(b) max, min(b) min from t4 group by c,a) t
+ on t3.a=t.a and t3.c=t.c
+where t3.b <= 15;
+
+eval $no_splitting $q40;
+eval $q40;
+eval explain extended $q40;
+eval explain format=json $q40;
+
+drop index idx_a on t2;
+create index idx on t2(c,b);
+create index idx_a on t3(a);
+create index idx_c on t4(c);
+insert into t3 select a+10, b+10, concat(c,'f') from t3;
+insert into t3 select a+100, b+100, concat(c,'g') from t3;
+insert into t4 select a+100, b+100, concat(c,'g') from t4;
+insert into t4 select a+1000, b+1000, concat(c,'h') from t4;
+
+analyze table t2,t3,t4;
+
+let $q5=
+select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+
+--sorted_result
+eval $no_splitting $q5;
+--sorted_result
+eval $q5;
+eval explain extended $q5;
+eval explain format=json $q5;
+
+let $q50=
+select t2.a,t2.b,t2.c,t.c as t_c,t.max,t.min
+from t2, t3, (select c, max(b) max, min(b) min from t4 group by c) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+
+eval $no_splitting $q50;
+eval $q50;
+eval explain extended $q50;
+eval explain format=json $q50;
+
+let $q6=
+select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b between 80 and 85 and t2.c in ('y','z') and t2.a=t3.a and t3.c=t.c;
+
+--sorted_result
+eval $no_splitting $q6;
+--sorted_result
+eval $q6;
+eval explain extended $q6;
+eval explain format=json $q6;
+
+let $q60=
+select *
+from t2, t3, (select c, b, sum(b) over (partition by c) from t4 ) t
+where t2.b < 40 and t2.a=t3.a and t3.c=t.c;
+
+--sorted_result
+eval $no_splitting $q60;
+--sorted_result
+eval $q60;
+eval explain extended $q60;
+eval explain format=json $q60;
+
+drop table t1,t2,t3,t4;
+
+--echo #
+--echo # MDEV-13709: Optimization for semi-joins of grouping derived tables
+--echo # (Splitting derived tables / views with GROUP BY)
+--echo #
+
+CREATE TABLE t1 (i int);
+INSERT INTO t1 VALUES (1),(9),(3);
+
+CREATE TABLE t2 (a int, i int);
+INSERT INTO t2 VALUES (1,9),(2,3),(3,7),(4,1);
+
+CREATE TABLE t3 (a int, c char(127), index(c));
+INSERT INTO t3 VALUES (1,'foo'),(3,'bar'),(4,'foo'),(2,'bar');
+INSERT INTO t3 SELECT a, concat(c,'a') FROM t3;
+
+CREATE TABLE t4 (a int, c char(127), index(a));
+INSERT INTO t4 VALUES
+ (3,'abc'),(1,'foo'),(4,'def'),(8,'xxx'),(3,'yyy'),
+ (5,'zzz'),(9,'xyz'),(2,'yxz'),(5,'zxy'),(7,'zyx') ;
+
+ANALYZE TABLE t1,t2,t3,t4;
+
+CREATE VIEW v1 AS
+SELECT c FROM t3
+ WHERE a IN ( SELECT t2.a FROM t1 JOIN t2 WHERE t1.i = t2.i ) GROUP BY c ;
+
+let $q1=
+SELECT * FROM t4 WHERE c IN ( SELECT c FROM v1 ) and a < 2;
+
+eval $no_splitting $q1;
+eval $q1;
+eval explain extended $q1;
+eval explain format=json $q1;
+
+DROP VIEW v1;
+DROP TABLE t1,t2,t3,t4;
+
+--echo #
+--echo # MDEV-13710: Optimization for equi-joins of grouping derived tables
+--echo # (Splitting derived tables / views with GROUP BY) :
+--echo # FROM list of the derived table contains constant tables
+--echo #
+
+CREATE TABLE t1 (a int, INDEX(a)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (9),(5),(1);
+
+CREATE TABLE t2 (b int) ENGINE=MyISAM;
+
+CREATE TABLE t3 (c varchar(8), d int) ENGINE=MyISAM;
+INSERT INTO t3 VALUES ('foo',2),('bar',6);
+
+CREATE VIEW v1 AS SELECT a FROM t1, t2 GROUP BY a;
+
+SELECT * FROM t3
+ WHERE d IN ( SELECT * FROM v1 ) AND c LIKE 'z%' OR c IS NULL;
+
+DROP VIEW v1;
+DROP TABLE t1,t2,t3;
+
+--echo #
+--echo # MDEV-13734: Optimization for equi-joins of grouping derived tables
+--echo # (Splitting derived tables / views with GROUP BY) :
+--echo # derived table / view is empty
+--echo #
+
+CREATE TABLE t1 (a int, b int, INDEX(a)) ENGINE=MyISAM;
+CREATE TABLE t2 (c int) ENGINE=MyISAM;
+
+CREATE VIEW v1 AS SELECT a, b FROM t1 STRAIGHT_JOIN t2;
+CREATE VIEW v2 AS SELECT a, max(b) as bmax FROM v1 GROUP BY a;
+CREATE VIEW v3 AS SELECT v2.* FROM t1 JOIN v2 ON t1.b = v2.bmax ;
+
+SELECT * FROM v3 JOIN t1 ON (bmax = b);
+
+DROP VIEW v1,v2,v3;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-14845: Impossible where for derived with GROUP BY
+--echo #
+
+CREATE TABLE t1 (pk INT PRIMARY KEY);
+
+INSERT INTO t1 VALUES (1),(2);
+
+let $q=
+WITH cte AS ( SELECT pk FROM t1 WHERE pk IS NULL GROUP BY pk )
+SELECT * FROM cte;
+
+eval $q;
+eval EXPLAIN EXTENDED $q;
+
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-14880: assertion failure in optimizer when splitting is applied
+--echo #
+
+CREATE TABLE t1 (pk1 INT PRIMARY KEY, f INT) ENGINE=Aria;
+INSERT INTO t1 VALUES (1,0),(2,0);
+
+CREATE TABLE t2 (pk2 INT PRIMARY KEY) ENGINE=Aria;
+INSERT INTO t2 VALUES (1),(2),(3);
+
+CREATE VIEW v2 AS SELECT pk2, COUNT(*) AS cnt FROM t2 GROUP BY pk2;
+
+let $q=
+SELECT * FROM t1 INNER JOIN v2 ON pk1 = pk2 WHERE f <> 5;
+
+eval $q;
+eval EXPLAIN EXTENDED $q;
+eval EXPLAIN FORMAT=JSON $q;
+
+DROP VIEW v2;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-15017: splittable table is constant table
+--echo #
+
+CREATE TABLE t1 (a INT) ENGINE=MyISAM;
+
+CREATE TABLE t2 (pk INT, b INT, PRIMARY KEY (pk)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,2),(3,4);
+
+CREATE VIEW v2 AS SELECT pk, MIN(b) FROM t2 GROUP BY pk;
+
+SELECT * FROM t1 LEFT JOIN v2 ON (a = pk);
+
+DROP VIEW v2;
+DROP TABLE t1,t2;
+
+--echo #
+--echo # MDEV-14994: splittable table with no rows
+--echo #
+
+CREATE TABLE t1 (f INT PRIMARY KEY) ENGINE=MyISAM;
+CREATE VIEW v1 AS SELECT a.* FROM t1 AS a STRAIGHT_JOIN t1 AS b;
+CREATE VIEW v2 AS SELECT f FROM v1 GROUP BY f;
+
+SELECT * FROM v1 JOIN v2 ON v1.f = v2.f;
+EXPLAIN EXTENDED
+SELECT * FROM v1 JOIN v2 ON v1.f = v2.f;
+
+DROP VIEW v1,v2;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-15899: derived with WF without any key access
+--echo #
+
+create table t1 (f1 int, f2 int, f4 int);
+insert into t1 values
+ (3,1,1), (3,0,9), (0,1,8), (9,0,0), (3,0,9);
+
+let $q=
+with
+cte as (select median(f2) over (partition by f1) as k1 from t1 order by f1),
+cte1 as (select median(f4) over (partition by f1) as k2 from t1)
+select k1,k2 from cte1, cte;
+
+--sorted_result
+eval $q;
+eval explain $q;
+
+drop table t1;
+
+--echo #
+--echo # MDEV-16104: embedded splittable materialized derived/views
+--echo #
+
+CREATE TABLE t1 (f int PRIMARY KEY) ENGINE=MyISAM;
+INSERT INTO t1
+ VALUES (3), (7), (1), (4), (8), (5), (9);
+
+CREATE ALGORITHM=MERGE VIEW v1 AS
+SELECT a2.*
+FROM
+ ( SELECT f, COUNT(*) as c FROM t1 GROUP BY f ) AS a1
+ JOIN
+ t1 AS a2
+ USING (f);
+
+EXPLAIN EXTENDED
+SELECT * FROM ( SELECT STRAIGHT_JOIN f, COUNT(*) as c FROM v1 GROUP BY f ) AS s;
+SELECT * FROM ( SELECT STRAIGHT_JOIN f, COUNT(*) as c FROM v1 GROUP BY f ) AS s;
+
+DROP VIEW v1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-16801: splittable materialized derived/views with
+--echo # one grouping field from table without keys
+--echo #
+
+CREATE TABLE t1 (a int, b int, INDEX idx_a(a), INDEX idx_b(b)) ENGINE=MYISAM;
+CREATE TABLE t2 (c int) ENGINE=MYISAM;
+CREATE TABLE t3 (d int) ENGINE=MYISAM;
+INSERT INTO t1 VALUES
+ (77,7), (11,1), (33,3), (44,4), (8,88),
+ (78,7), (98,9), (38,3), (28,2), (79,7),
+ (58,5), (42,4), (71,7), (27,2), (91,9);
+INSERT INTO t1 SELECT a+100, b+10 FROM t1;
+INSERT INTO t2 VALUES
+ (100), (700), (200), (100), (200);
+INSERT INTO t3 VALUES
+ (3), (4), (1), (8), (3);
+
+ANALYZE tables t1,t2,t3;
+
+let $q=
+SELECT *
+ FROM t3,
+ (SELECT t1.b, t2.c
+ FROM t1, t2
+ GROUP BY t1.b,t2.c) dt
+WHERE t3.d = dt.b;
+
+eval $q;
+eval EXPLAIN EXTENDED $q;
+
+DROP TABLE t1,t2,t3;
+
+--echo #
+--echo # MDEV-17419: splittable materialized derived/view
+--echo # when join_cache_level = 4
+--echo #
+
+set join_cache_level = 4;
+
+CREATE TABLE t1 (
+ id INT UNSIGNED NOT NULL AUTO_INCREMENT,
+ username VARCHAR(50) NULL DEFAULT '0',
+ PRIMARY KEY (id)
+) COLLATE='utf8_general_ci';
+
+CREATE TABLE t2 (
+ id INT UNSIGNED NOT NULL AUTO_INCREMENT,
+ userid INT UNSIGNED NOT NULL,
+ logindate DATETIME NOT NULL,
+ PRIMARY KEY (id)
+) COLLATE='utf8_general_ci';
+
+INSERT INTO t1 (id, username) VALUES
+ (1,"user1"), (2, "user2");
+INSERT INTO t2 (id, userid, logindate) VALUES
+ (1,1,"2015-06-19 12:17:02.828"),
+ (2,1,"2016-06-19 12:17:02.828"),
+ (3,2,"2017-06-19 12:17:02.828"),
+ (4,2,"2018-06-19 12:17:02.828");
+
+let $q=
+select * from t1 as u
+ left join
+ (select * from t2 as au group by au.userid) as auditlastlogin
+ on u.id=auditlastlogin.userid;
+
+eval EXPLAIN $q;
+eval $q;
+
+set join_cache_level=default;
+
+DROP TABLE t1,t2;
+
+
+--echo #
+--echo # MDEV-21614: potentially splittable materialized derived/view
+--echo # within materialized semi-join
+--echo #
+
+create table t1 (
+ id int not null auto_increment primary key,
+ a int not null
+) engine=myisam;
+
+create table t2 (
+ id int not null auto_increment primary key,
+ ro_id int not null,
+ flag int not null, key (ro_id)
+) engine=myisam;
+
+insert into t1(a) select seq+100 from seq_1_to_20;
+insert into t2(ro_id,flag) select seq, 1 from seq_1_to_20;
+insert into t2(ro_id,flag) select seq, 0 from seq_1_to_20;
+
+create view v1 as
+select t1.* from t1 left join t2 on (t1.id = t2.ro_id AND t2.flag = 1)
+ group by t1.id;
+
+let $q1=
+select id, a from t1 where id in (select id from v1);
+eval $q1;
+eval explain extended $q1;
+
+let $q2=
+select id, a from t1
+ where id in (select id
+ from (select t1.* from t1 left join t2
+ on (t1.id = t2.ro_id AND t2.flag = 1)
+ group by t1.id) dt);
+eval $q2;
+eval explain extended $q2;
+
+drop view v1;
+drop table t1,t2;
+
+--echo #
+--echo # MDEV-21883: potentially splittable materialized derived
+--echo # that uses a join of 32 tables
+--echo #
+
+CREATE TABLE t (id INT NOT NULL PRIMARY KEY);
+INSERT INTO t values (1),(2),(3);
+
+let $q=
+SELECT t.id FROM t
+LEFT JOIN (
+ SELECT t0.id FROM t AS t0
+ LEFT JOIN t AS t1 ON 0=1
+ LEFT JOIN t AS t2 ON 0=1
+ LEFT JOIN t AS t3 ON 0=1
+ LEFT JOIN t AS t4 ON 0=1
+ LEFT JOIN t AS t5 ON 0=1
+ LEFT JOIN t AS t6 ON 0=1
+ LEFT JOIN t AS t7 ON 0=1
+ LEFT JOIN t AS t8 ON 0=1
+ LEFT JOIN t AS t9 ON 0=1
+ LEFT JOIN t AS t10 ON 0=1
+ LEFT JOIN t AS t11 ON 0=1
+ LEFT JOIN t AS t12 ON 0=1
+ LEFT JOIN t AS t13 ON 0=1
+ LEFT JOIN t AS t14 ON 0=1
+ LEFT JOIN t AS t15 ON 0=1
+ LEFT JOIN t AS t16 ON 0=1
+ LEFT JOIN t AS t17 ON 0=1
+ LEFT JOIN t AS t18 ON 0=1
+ LEFT JOIN t AS t19 ON 0=1
+ LEFT JOIN t AS t20 ON 0=1
+ LEFT JOIN t AS t21 ON 0=1
+ LEFT JOIN t AS t22 ON 0=1
+ LEFT JOIN t AS t23 ON 0=1
+ LEFT JOIN t AS t24 ON 0=1
+ LEFT JOIN t AS t25 ON 0=1
+ LEFT JOIN t AS t26 ON 0=1
+ LEFT JOIN t AS t27 ON 0=1
+ LEFT JOIN t AS t28 ON 0=1
+ LEFT JOIN t AS t29 ON 0=1
+ LEFT JOIN t AS t30 ON 0=1
+ LEFT JOIN t AS t31 ON 0=1
+ GROUP BY t0.id) AS dt ON dt.id = t.id;
+
+eval set statement optimizer_switch='split_materialized=off' for $q;
+
+eval set statement optimizer_switch='split_materialized=on' for $q;
+
+DROP TABLE t;
+
+--echo #
+--echo # MDEV-23804: Server crashes in st_select_lex::collect_grouping_fields_for_derived
+--echo #
+
+CREATE TABLE t1 (a INT);
+INSERT INTO t1 VALUES (3),(4);
+CREATE VIEW v1 AS SELECT a FROM t1 UNION VALUES (3),(4);
+--source include/analyze-format.inc
+ANALYZE FORMAT=JSON SELECT * from v1 WHERE a=3;
+SELECT * from v1 WHERE a=3;
+DROP VIEW v1;
+DROP TABLE t1;
+
+--echo #
+--echo # MDEV-25128: Split optimization for join with materialized semi-join
+--echo #
+
+create table t1 (id int, a int, index (a), index (id, a)) engine=myisam;
+insert into t1 values
+(17,1),(17,3010),(17,3013),(17,3053),(21,2446),(21,2467),(21,2);
+
+create table t2 (a int) engine=myisam;
+insert into t2 values (1),(2),(3);
+
+create table t3 (id int) engine=myisam;
+insert into t3 values (1),(2);
+
+analyze table t1,t2,t3;
+
+let $q=
+select * from t1, (select a from t1 cp2 group by a) dt, t3
+ where dt.a = t1.a and t1.a = t3.id and t1.a in (select a from t2);
+
+set optimizer_switch="split_materialized=off";
+eval $q;
+eval explain $q;
+eval explain format=json $q;
+
+set optimizer_switch="split_materialized=default";
+eval $q;
+eval explain $q;
+eval explain format=json $q;
+
+eval prepare stmt from "$q";
+execute stmt;
+execute stmt;
+deallocate prepare stmt;
+
+drop table t1,t2,t3;
+
+--echo # End of 10.3 tests
diff --cc mysql-test/main/information_schema.result
index 28c1122ac03,00000000000..0559c42350d
mode 100644,000000..100644
--- a/mysql-test/main/information_schema.result
+++ b/mysql-test/main/information_schema.result
@@@ -1,2327 -1,0 +1,2329 @@@
+set global sql_mode="";
+set local sql_mode="";
+DROP TABLE IF EXISTS t0,t1,t2,t3,t4,t5;
+DROP VIEW IF EXISTS v1;
+show variables where variable_name like "skip_show_database";
+Variable_name Value
+skip_show_database OFF
+grant select, update, execute on test.* to mysqltest_2@localhost;
+grant select, update on test.* to mysqltest_1@localhost;
+create user mysqltest_3@localhost;
+create user mysqltest_3;
+select * from information_schema.SCHEMATA where schema_name > 'm';
+CATALOG_NAME SCHEMA_NAME DEFAULT_CHARACTER_SET_NAME DEFAULT_COLLATION_NAME SQL_PATH
+def mtr latin1 latin1_swedish_ci NULL
+def mysql latin1 latin1_swedish_ci NULL
+def performance_schema utf8 utf8_general_ci NULL
+def test latin1 latin1_swedish_ci NULL
+select schema_name from information_schema.schemata;
+schema_name
+information_schema
+mtr
+mysql
+performance_schema
+test
+show databases like 't%';
+Database (t%)
+test
+show databases;
+Database
+information_schema
+mtr
+mysql
+performance_schema
+test
+show databases where `database` = 't%';
+Database
+create database mysqltest;
+create table mysqltest.t1(a int, b VARCHAR(30), KEY string_data (b));
+create table test.t2(a int);
+create table t3(a int, KEY a_data (a));
+create table mysqltest.t4(a int);
+create table t5 (id int auto_increment primary key);
+insert into t5 values (10);
+create view v1 (c) as
+SELECT table_name FROM information_schema.TABLES
+WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test', 'mysqltest') AND
+table_name not like 'innodb_%' AND
+table_name not like 'xtradb_%';
+select * from v1;
+c
+ALL_PLUGINS
+APPLICABLE_ROLES
+CHARACTER_SETS
+CHECK_CONSTRAINTS
+CLIENT_STATISTICS
+COLLATIONS
+COLLATION_CHARACTER_SET_APPLICABILITY
+COLUMNS
+COLUMN_PRIVILEGES
+ENABLED_ROLES
+ENGINES
+EVENTS
+FILES
+GEOMETRY_COLUMNS
+GLOBAL_STATUS
+GLOBAL_VARIABLES
+INDEX_STATISTICS
++KEYWORDS
+KEY_CACHES
+KEY_COLUMN_USAGE
+PARAMETERS
+PARTITIONS
+PLUGINS
+PROCESSLIST
+PROFILING
+REFERENTIAL_CONSTRAINTS
+ROUTINES
+SCHEMATA
+SCHEMA_PRIVILEGES
+SESSION_STATUS
+SESSION_VARIABLES
+SPATIAL_REF_SYS
++SQL_FUNCTIONS
+STATISTICS
+SYSTEM_VARIABLES
+TABLES
+TABLESPACES
+TABLE_CONSTRAINTS
+TABLE_PRIVILEGES
+TABLE_STATISTICS
+TRIGGERS
+USER_PRIVILEGES
+USER_STATISTICS
+VIEWS
+column_stats
+columns_priv
+db
+event
+func
+general_log
+gtid_slave_pos
+help_category
+help_keyword
+help_relation
+help_topic
+host
+index_stats
+plugin
+proc
+procs_priv
+proxies_priv
+roles_mapping
+servers
+slow_log
+t1
+t2
+t3
+t4
+t5
+table_stats
+tables_priv
+time_zone
+time_zone_leap_second
+time_zone_name
+time_zone_transition
+time_zone_transition_type
+transaction_registry
+user
+v1
+select c,table_name from v1
+inner join information_schema.TABLES v2 on (v1.c=v2.table_name)
+where v1.c like "t%";
+c table_name
+TABLES TABLES
+TABLESPACES TABLESPACES
+TABLE_CONSTRAINTS TABLE_CONSTRAINTS
+TABLE_PRIVILEGES TABLE_PRIVILEGES
+TABLE_STATISTICS TABLE_STATISTICS
+TRIGGERS TRIGGERS
+t1 t1
+t2 t2
+t3 t3
+t4 t4
+t5 t5
+table_stats table_stats
+tables_priv tables_priv
+time_zone time_zone
+time_zone_leap_second time_zone_leap_second
+time_zone_name time_zone_name
+time_zone_transition time_zone_transition
+time_zone_transition_type time_zone_transition_type
+transaction_registry transaction_registry
+select c,table_name from v1
+left join information_schema.TABLES v2 on (v1.c=v2.table_name)
+where v1.c like "t%";
+c table_name
+TABLES TABLES
+TABLESPACES TABLESPACES
+TABLE_CONSTRAINTS TABLE_CONSTRAINTS
+TABLE_PRIVILEGES TABLE_PRIVILEGES
+TABLE_STATISTICS TABLE_STATISTICS
+TRIGGERS TRIGGERS
+t1 t1
+t2 t2
+t3 t3
+t4 t4
+t5 t5
+table_stats table_stats
+tables_priv tables_priv
+time_zone time_zone
+time_zone_leap_second time_zone_leap_second
+time_zone_name time_zone_name
+time_zone_transition time_zone_transition
+time_zone_transition_type time_zone_transition_type
+transaction_registry transaction_registry
+select c, v2.table_name from v1
+right join information_schema.TABLES v2 on (v1.c=v2.table_name)
+where v1.c like "t%";
+c table_name
+TABLES TABLES
+TABLESPACES TABLESPACES
+TABLE_CONSTRAINTS TABLE_CONSTRAINTS
+TABLE_PRIVILEGES TABLE_PRIVILEGES
+TABLE_STATISTICS TABLE_STATISTICS
+TRIGGERS TRIGGERS
+t1 t1
+t2 t2
+t3 t3
+t4 t4
+t5 t5
+table_stats table_stats
+tables_priv tables_priv
+time_zone time_zone
+time_zone_leap_second time_zone_leap_second
+time_zone_name time_zone_name
+time_zone_transition time_zone_transition
+time_zone_transition_type time_zone_transition_type
+transaction_registry transaction_registry
+select table_name from information_schema.TABLES
+where table_schema = "mysqltest" and table_name like "t%";
+table_name
+t1
+t4
+select * from information_schema.STATISTICS where TABLE_SCHEMA = "mysqltest";
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME NON_UNIQUE INDEX_SCHEMA INDEX_NAME SEQ_IN_INDEX COLUMN_NAME COLLATION CARDINALITY SUB_PART PACKED NULLABLE INDEX_TYPE COMMENT INDEX_COMMENT
+def mysqltest t1 1 mysqltest string_data 1 b A NULL NULL NULL YES BTREE
+show keys from t3 where Key_name = "a_data";
+Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
+t3 1 a_data 1 a A NULL NULL NULL YES BTREE
+show tables like 't%';
+Tables_in_test (t%)
+t2
+t3
+t5
+show table status;
+Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment Max_index_length Temporary
+t2 MyISAM 10 Fixed 0 0 0 # 1024 0 NULL # # NULL latin1_swedish_ci NULL # N
+t3 MyISAM 10 Fixed 0 0 0 # 1024 0 NULL # # NULL latin1_swedish_ci NULL # N
+t5 MyISAM 10 Fixed 1 7 7 # 2048 0 11 # # NULL latin1_swedish_ci NULL # N
+v1 NULL NULL NULL NULL NULL NULL # NULL NULL NULL # # NULL NULL NULL NULL VIEW # NULL
+show full columns from t3 like "a%";
+Field Type Collation Null Key Default Extra Privileges Comment
+a int(11) NULL YES MUL NULL select,insert,update,references
+show full columns from mysql.db like "Insert%";
+Field Type Collation Null Key Default Extra Privileges Comment
+Insert_priv enum('N','Y') utf8_general_ci NO N select,insert,update,references
+show full columns from v1;
+Field Type Collation Null Key Default Extra Privileges Comment
+c varchar(64) utf8_general_ci NO select,insert,update,references
+select * from information_schema.COLUMNS where table_name="t1"
+and column_name= "a";
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION COLUMN_DEFAULT IS_NULLABLE DATA_TYPE CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH NUMERIC_PRECISION NUMERIC_SCALE DATETIME_PRECISION CHARACTER_SET_NAME COLLATION_NAME COLUMN_TYPE COLUMN_KEY EXTRA PRIVILEGES COLUMN_COMMENT IS_GENERATED GENERATION_EXPRESSION
+def mysqltest t1 a 1 NULL YES int NULL NULL 10 0 NULL NULL NULL int(11) select,insert,update,references NEVER NULL
+show columns from mysqltest.t1 where field like "%a%";
+Field Type Null Key Default Extra
+a int(11) YES NULL
+create view mysqltest.v1 (c) as select a from mysqltest.t1;
+grant select (a) on mysqltest.t1 to mysqltest_2@localhost;
+grant select on mysqltest.v1 to mysqltest_3;
+connect user3,localhost,mysqltest_2,,;
+connection user3;
+select table_name, column_name, privileges from information_schema.columns
+where table_schema = 'mysqltest' and table_name = 't1';
+table_name column_name privileges
+t1 a select
+show columns from mysqltest.t1;
+Field Type Null Key Default Extra
+a int(11) YES NULL
+connect user4,localhost,mysqltest_3,,mysqltest;
+connection user4;
+select table_name, column_name, privileges from information_schema.columns
+where table_schema = 'mysqltest' and table_name = 'v1';
+table_name column_name privileges
+v1 c select
+explain select * from v1;
+ERROR HY000: ANALYZE/EXPLAIN/SHOW can not be issued; lacking privileges for underlying table
+connection default;
+disconnect user4;
+drop view v1, mysqltest.v1;
+drop tables mysqltest.t4, mysqltest.t1, t2, t3, t5;
+drop database mysqltest;
+select * from information_schema.CHARACTER_SETS
+where CHARACTER_SET_NAME like 'latin1%';
+CHARACTER_SET_NAME DEFAULT_COLLATE_NAME DESCRIPTION MAXLEN
+latin1 latin1_swedish_ci cp1252 West European 1
+SHOW CHARACTER SET LIKE 'latin1%';
+Charset Description Default collation Maxlen
+latin1 cp1252 West European latin1_swedish_ci 1
+SHOW CHARACTER SET WHERE charset like 'latin1%';
+Charset Description Default collation Maxlen
+latin1 cp1252 West European latin1_swedish_ci 1
+select * from information_schema.COLLATIONS
+where COLLATION_NAME like 'latin1%';
+COLLATION_NAME CHARACTER_SET_NAME ID IS_DEFAULT IS_COMPILED SORTLEN
+latin1_german1_ci latin1 5 # 1
+latin1_swedish_ci latin1 8 Yes # 1
+latin1_danish_ci latin1 15 # 1
+latin1_german2_ci latin1 31 # 2
+latin1_bin latin1 47 # 1
+latin1_general_ci latin1 48 # 1
+latin1_general_cs latin1 49 # 1
+latin1_spanish_ci latin1 94 # 1
+latin1_swedish_nopad_ci latin1 1032 # 1
+latin1_nopad_bin latin1 1071 # 1
+SHOW COLLATION LIKE 'latin1%';
+Collation Charset Id Default Compiled Sortlen
+latin1_german1_ci latin1 5 # 1
+latin1_swedish_ci latin1 8 Yes # 1
+latin1_danish_ci latin1 15 # 1
+latin1_german2_ci latin1 31 # 2
+latin1_bin latin1 47 # 1
+latin1_general_ci latin1 48 # 1
+latin1_general_cs latin1 49 # 1
+latin1_spanish_ci latin1 94 # 1
+latin1_swedish_nopad_ci latin1 1032 # 1
+latin1_nopad_bin latin1 1071 # 1
+SHOW COLLATION WHERE collation like 'latin1%';
+Collation Charset Id Default Compiled Sortlen
+latin1_german1_ci latin1 5 # 1
+latin1_swedish_ci latin1 8 Yes # 1
+latin1_danish_ci latin1 15 # 1
+latin1_german2_ci latin1 31 # 2
+latin1_bin latin1 47 # 1
+latin1_general_ci latin1 48 # 1
+latin1_general_cs latin1 49 # 1
+latin1_spanish_ci latin1 94 # 1
+latin1_swedish_nopad_ci latin1 1032 # 1
+latin1_nopad_bin latin1 1071 # 1
+select * from information_schema.COLLATION_CHARACTER_SET_APPLICABILITY
+where COLLATION_NAME like 'latin1%';
+COLLATION_NAME CHARACTER_SET_NAME
+latin1_german1_ci latin1
+latin1_swedish_ci latin1
+latin1_danish_ci latin1
+latin1_german2_ci latin1
+latin1_bin latin1
+latin1_general_ci latin1
+latin1_general_cs latin1
+latin1_spanish_ci latin1
+latin1_swedish_nopad_ci latin1
+latin1_nopad_bin latin1
+drop procedure if exists sel2;
+drop function if exists sub1;
+drop function if exists sub2;
+create function sub1(i int) returns int
+return i+1;
+create procedure sel2()
+begin
+select * from t1;
+select * from t2;
+end|
+select parameter_style, sql_data_access, dtd_identifier
+from information_schema.routines where routine_schema='test';
+parameter_style sql_data_access dtd_identifier
+SQL CONTAINS SQL NULL
+SQL CONTAINS SQL int(11)
+show procedure status where db='test';
+Db Name Type Definer Modified Created Security_type Comment character_set_client collation_connection Database Collation
+test sel2 PROCEDURE root@localhost # # DEFINER latin1 latin1_swedish_ci latin1_swedish_ci
+show function status where db='test';
+Db Name Type Definer Modified Created Security_type Comment character_set_client collation_connection Database Collation
+test sub1 FUNCTION root@localhost # # DEFINER latin1 latin1_swedish_ci latin1_swedish_ci
+select a.ROUTINE_NAME from information_schema.ROUTINES a,
+information_schema.SCHEMATA b where
+a.ROUTINE_SCHEMA = b.SCHEMA_NAME AND b.SCHEMA_NAME='test';
+ROUTINE_NAME
+sel2
+sub1
+explain select a.ROUTINE_NAME from information_schema.ROUTINES a,
+information_schema.SCHEMATA b where
+a.ROUTINE_SCHEMA = b.SCHEMA_NAME;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE # ALL NULL NULL NULL NULL NULL
+1 SIMPLE # ALL NULL NULL NULL NULL NULL Using where; Using join buffer (flat, BNL join)
+select a.ROUTINE_NAME, b.name from information_schema.ROUTINES a,
+mysql.proc b where a.ROUTINE_NAME = convert(b.name using utf8) AND a.ROUTINE_SCHEMA='test' order by 1;
+ROUTINE_NAME name
+sel2 sel2
+sub1 sub1
+select count(*) from information_schema.ROUTINES where routine_schema='test';
+count(*)
+2
+create view v1 as select routine_schema, routine_name from information_schema.routines where routine_schema='test'
+order by routine_schema, routine_name;
+select * from v1;
+routine_schema routine_name
+test sel2
+test sub1
+drop view v1;
+connect user1,localhost,mysqltest_1,,;
+connection user1;
+select ROUTINE_NAME, ROUTINE_DEFINITION from information_schema.ROUTINES;
+ROUTINE_NAME ROUTINE_DEFINITION
+show create function sub1;
+ERROR 42000: FUNCTION sub1 does not exist
+connection user3;
+select ROUTINE_NAME, ROUTINE_DEFINITION from information_schema.ROUTINES;
+ROUTINE_NAME ROUTINE_DEFINITION
+sel2 NULL
+sub1 NULL
+connection default;
+grant all privileges on test.* to mysqltest_1@localhost;
+connect user2,localhost,mysqltest_1,,;
+connection user2;
+select ROUTINE_NAME, ROUTINE_DEFINITION from information_schema.ROUTINES;
+ROUTINE_NAME ROUTINE_DEFINITION
+sel2 NULL
+sub1 NULL
+create function sub2(i int) returns int
+return i+1;
+select ROUTINE_NAME, ROUTINE_DEFINITION from information_schema.ROUTINES;
+ROUTINE_NAME ROUTINE_DEFINITION
+sel2 NULL
+sub1 NULL
+sub2 return i+1
+show create procedure sel2;
+Procedure sql_mode Create Procedure character_set_client collation_connection Database Collation
+sel2 NULL latin1 latin1_swedish_ci latin1_swedish_ci
+show create function sub1;
+Function sql_mode Create Function character_set_client collation_connection Database Collation
+sub1 NULL latin1 latin1_swedish_ci latin1_swedish_ci
+show create function sub2;
+Function sql_mode Create Function character_set_client collation_connection Database Collation
+sub2 CREATE DEFINER=`mysqltest_1`@`localhost` FUNCTION `sub2`(i int) RETURNS int(11)
+return i+1 latin1 latin1_swedish_ci latin1_swedish_ci
+show function status like "sub2";
+Db Name Type Definer Modified Created Security_type Comment character_set_client collation_connection Database Collation
+test sub2 FUNCTION mysqltest_1@localhost # # DEFINER latin1 latin1_swedish_ci latin1_swedish_ci
+connection default;
+disconnect user1;
+disconnect user3;
+drop function sub2;
+show create procedure sel2;
+Procedure sql_mode Create Procedure character_set_client collation_connection Database Collation
+sel2 CREATE DEFINER=`root`@`localhost` PROCEDURE `sel2`()
+begin
+select * from t1;
+select * from t2;
+end latin1 latin1_swedish_ci latin1_swedish_ci
+create view v0 (c) as select schema_name from information_schema.schemata;
+select * from v0;
+c
+information_schema
+mtr
+mysql
+performance_schema
+test
+explain select * from v0;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE # ALL NULL NULL NULL NULL NULL
+create view v1 (c) as select table_name from information_schema.tables
+where table_name="v1";
+select * from v1;
+c
+v1
+create view v2 (c) as select column_name from information_schema.columns
+where table_name="v2";
+select * from v2;
+c
+c
+create view v3 (c) as select CHARACTER_SET_NAME from information_schema.character_sets
+where CHARACTER_SET_NAME like "latin1%";
+select * from v3;
+c
+latin1
+create view v4 (c) as select COLLATION_NAME from information_schema.collations
+where COLLATION_NAME like "latin1%";
+select * from v4;
+c
+latin1_german1_ci
+latin1_swedish_ci
+latin1_danish_ci
+latin1_german2_ci
+latin1_bin
+latin1_general_ci
+latin1_general_cs
+latin1_spanish_ci
+latin1_swedish_nopad_ci
+latin1_nopad_bin
+show keys from v4;
+Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
+select * from information_schema.views where TABLE_NAME like "v%";
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME VIEW_DEFINITION CHECK_OPTION IS_UPDATABLE DEFINER SECURITY_TYPE CHARACTER_SET_CLIENT COLLATION_CONNECTION ALGORITHM
+def test v0 select `information_schema`.`schemata`.`SCHEMA_NAME` AS `c` from `information_schema`.`schemata` NONE NO root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+def test v1 select `information_schema`.`tables`.`TABLE_NAME` AS `c` from `information_schema`.`tables` where `information_schema`.`tables`.`TABLE_NAME` = 'v1' NONE NO root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+def test v2 select `information_schema`.`columns`.`COLUMN_NAME` AS `c` from `information_schema`.`columns` where `information_schema`.`columns`.`TABLE_NAME` = 'v2' NONE NO root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+def test v3 select `information_schema`.`character_sets`.`CHARACTER_SET_NAME` AS `c` from `information_schema`.`character_sets` where `information_schema`.`character_sets`.`CHARACTER_SET_NAME` like 'latin1%' NONE NO root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+def test v4 select `information_schema`.`collations`.`COLLATION_NAME` AS `c` from `information_schema`.`collations` where `information_schema`.`collations`.`COLLATION_NAME` like 'latin1%' NONE NO root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+drop view v0, v1, v2, v3, v4;
+create table t1 (a int);
+grant select,update,insert on t1 to mysqltest_1@localhost;
+grant select (a), update (a),insert(a), references(a) on t1 to mysqltest_1@localhost;
+grant all on test.* to mysqltest_1@localhost with grant option;
+select * from information_schema.USER_PRIVILEGES where grantee like '%mysqltest_1%';
+GRANTEE TABLE_CATALOG PRIVILEGE_TYPE IS_GRANTABLE
+'mysqltest_1'@'localhost' def USAGE NO
+select * from information_schema.SCHEMA_PRIVILEGES where grantee like '%mysqltest_1%';
+GRANTEE TABLE_CATALOG TABLE_SCHEMA PRIVILEGE_TYPE IS_GRANTABLE
+'mysqltest_1'@'localhost' def test SELECT YES
+'mysqltest_1'@'localhost' def test INSERT YES
+'mysqltest_1'@'localhost' def test UPDATE YES
+'mysqltest_1'@'localhost' def test DELETE YES
+'mysqltest_1'@'localhost' def test CREATE YES
+'mysqltest_1'@'localhost' def test DROP YES
+'mysqltest_1'@'localhost' def test REFERENCES YES
+'mysqltest_1'@'localhost' def test INDEX YES
+'mysqltest_1'@'localhost' def test ALTER YES
+'mysqltest_1'@'localhost' def test CREATE TEMPORARY TABLES YES
+'mysqltest_1'@'localhost' def test LOCK TABLES YES
+'mysqltest_1'@'localhost' def test EXECUTE YES
+'mysqltest_1'@'localhost' def test CREATE VIEW YES
+'mysqltest_1'@'localhost' def test SHOW VIEW YES
+'mysqltest_1'@'localhost' def test CREATE ROUTINE YES
+'mysqltest_1'@'localhost' def test ALTER ROUTINE YES
+'mysqltest_1'@'localhost' def test EVENT YES
+'mysqltest_1'@'localhost' def test TRIGGER YES
+'mysqltest_1'@'localhost' def test DELETE HISTORY YES
+select * from information_schema.TABLE_PRIVILEGES where grantee like '%mysqltest_1%';
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PRIVILEGE_TYPE IS_GRANTABLE
+'mysqltest_1'@'localhost' def test t1 SELECT NO
+'mysqltest_1'@'localhost' def test t1 INSERT NO
+'mysqltest_1'@'localhost' def test t1 UPDATE NO
+select * from information_schema.COLUMN_PRIVILEGES where grantee like '%mysqltest_1%';
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME PRIVILEGE_TYPE IS_GRANTABLE
+'mysqltest_1'@'localhost' def test t1 a SELECT NO
+'mysqltest_1'@'localhost' def test t1 a INSERT NO
+'mysqltest_1'@'localhost' def test t1 a UPDATE NO
+'mysqltest_1'@'localhost' def test t1 a REFERENCES NO
+delete from mysql.user where user like 'mysqltest%';
+delete from mysql.db where user like 'mysqltest%';
+delete from mysql.tables_priv where user like 'mysqltest%';
+delete from mysql.columns_priv where user like 'mysqltest%';
+flush privileges;
+drop table t1;
+create table t1 (a int null, primary key(a));
+alter table t1 add constraint constraint_1 unique (a);
+alter table t1 add constraint unique key_1(a);
+Warnings:
+Note 1831 Duplicate index `key_1`. This is deprecated and will be disallowed in a future release
+alter table t1 add constraint constraint_2 unique key_2(a);
+Warnings:
+Note 1831 Duplicate index `key_2`. This is deprecated and will be disallowed in a future release
+show create table t1;
+Table Create Table
+t1 CREATE TABLE `t1` (
+ `a` int(11) NOT NULL,
+ PRIMARY KEY (`a`),
+ UNIQUE KEY `constraint_1` (`a`),
+ UNIQUE KEY `key_1` (`a`),
+ UNIQUE KEY `key_2` (`a`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+select * from information_schema.TABLE_CONSTRAINTS where
+TABLE_SCHEMA= "test";
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_SCHEMA TABLE_NAME CONSTRAINT_TYPE
+def test PRIMARY test t1 PRIMARY KEY
+def test constraint_1 test t1 UNIQUE
+def test key_1 test t1 UNIQUE
+def test key_2 test t1 UNIQUE
+select * from information_schema.KEY_COLUMN_USAGE where
+TABLE_SCHEMA= "test";
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT REFERENCED_TABLE_SCHEMA REFERENCED_TABLE_NAME REFERENCED_COLUMN_NAME
+def test PRIMARY def test t1 a 1 NULL NULL NULL NULL
+def test constraint_1 def test t1 a 1 NULL NULL NULL NULL
+def test key_1 def test t1 a 1 NULL NULL NULL NULL
+def test key_2 def test t1 a 1 NULL NULL NULL NULL
+connection user2;
+select table_name from information_schema.TABLES where table_schema like "test%";
+table_name
+t1
+select table_name,column_name from information_schema.COLUMNS where table_schema like "test%";
+table_name column_name
+t1 a
+select ROUTINE_NAME from information_schema.ROUTINES;
+ROUTINE_NAME
+sel2
+sub1
+disconnect user2;
+connection default;
+delete from mysql.user where user='mysqltest_1';
+drop table t1;
+drop procedure sel2;
+drop function sub1;
+create table t1(a int);
+create view v1 (c) as select a from t1 with check option;
+create view v2 (c) as select a from t1 WITH LOCAL CHECK OPTION;
+create view v3 (c) as select a from t1 WITH CASCADED CHECK OPTION;
+select * from information_schema.views;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME VIEW_DEFINITION CHECK_OPTION IS_UPDATABLE DEFINER SECURITY_TYPE CHARACTER_SET_CLIENT COLLATION_CONNECTION ALGORITHM
+def test v1 select `test`.`t1`.`a` AS `c` from `test`.`t1` CASCADED YES root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+def test v2 select `test`.`t1`.`a` AS `c` from `test`.`t1` LOCAL YES root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+def test v3 select `test`.`t1`.`a` AS `c` from `test`.`t1` CASCADED YES root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+grant select (a) on test.t1 to joe@localhost with grant option;
+select * from INFORMATION_SCHEMA.COLUMN_PRIVILEGES;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME PRIVILEGE_TYPE IS_GRANTABLE
+'joe'@'localhost' def test t1 a SELECT YES
+select * from INFORMATION_SCHEMA.TABLE_PRIVILEGES;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PRIVILEGE_TYPE IS_GRANTABLE
+drop view v1, v2, v3;
+drop table t1;
+delete from mysql.user where user='joe';
+delete from mysql.db where user='joe';
+delete from mysql.tables_priv where user='joe';
+delete from mysql.columns_priv where user='joe';
+flush privileges;
+create table t1 (a int not null auto_increment,b int, primary key (a));
+insert into t1 values (1,1),(NULL,3),(NULL,4);
+select AUTO_INCREMENT from information_schema.tables where table_name = 't1';
+AUTO_INCREMENT
+4
+drop table t1;
+create table t1 (s1 int);
+insert into t1 values (0),(9),(0);
+select s1 from t1 where s1 in (select version from
+information_schema.tables) union select version from
+information_schema.tables;
+s1
+10
+11
+drop table t1;
+SHOW CREATE TABLE INFORMATION_SCHEMA.character_sets;
+Table Create Table
+CHARACTER_SETS CREATE TEMPORARY TABLE `CHARACTER_SETS` (
+ `CHARACTER_SET_NAME` varchar(32) NOT NULL DEFAULT '',
+ `DEFAULT_COLLATE_NAME` varchar(32) NOT NULL DEFAULT '',
+ `DESCRIPTION` varchar(60) NOT NULL DEFAULT '',
+ `MAXLEN` bigint(3) NOT NULL DEFAULT 0
+) ENGINE=MEMORY DEFAULT CHARSET=utf8
+set names latin2;
+SHOW CREATE TABLE INFORMATION_SCHEMA.character_sets;
+Table Create Table
+CHARACTER_SETS CREATE TEMPORARY TABLE `CHARACTER_SETS` (
+ `CHARACTER_SET_NAME` varchar(32) NOT NULL DEFAULT '',
+ `DEFAULT_COLLATE_NAME` varchar(32) NOT NULL DEFAULT '',
+ `DESCRIPTION` varchar(60) NOT NULL DEFAULT '',
+ `MAXLEN` bigint(3) NOT NULL DEFAULT 0
+) ENGINE=MEMORY DEFAULT CHARSET=utf8
+set names latin1;
+create table t1 select * from information_schema.CHARACTER_SETS
+where CHARACTER_SET_NAME like "latin1";
+select * from t1;
+CHARACTER_SET_NAME DEFAULT_COLLATE_NAME DESCRIPTION MAXLEN
+latin1 latin1_swedish_ci cp1252 West European 1
+alter table t1 default character set utf8;
+show create table t1;
+Table Create Table
+t1 CREATE TABLE `t1` (
+ `CHARACTER_SET_NAME` varchar(32) NOT NULL DEFAULT '',
+ `DEFAULT_COLLATE_NAME` varchar(32) NOT NULL DEFAULT '',
+ `DESCRIPTION` varchar(60) NOT NULL DEFAULT '',
+ `MAXLEN` bigint(3) NOT NULL DEFAULT 0
+) ENGINE=MyISAM DEFAULT CHARSET=utf8
+drop table t1;
+create view v1 as select * from information_schema.TABLES;
+drop view v1;
+create table t1(a NUMERIC(5,3), b NUMERIC(5,1), c float(5,2),
+d NUMERIC(6,4), e float, f DECIMAL(6,3), g int(11), h DOUBLE(10,3),
+i DOUBLE);
+select COLUMN_NAME,COLUMN_TYPE, CHARACTER_MAXIMUM_LENGTH,
+CHARACTER_OCTET_LENGTH, NUMERIC_PRECISION, NUMERIC_SCALE
+from information_schema.columns where table_name= 't1';
+COLUMN_NAME COLUMN_TYPE CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH NUMERIC_PRECISION NUMERIC_SCALE
+a decimal(5,3) NULL NULL 5 3
+b decimal(5,1) NULL NULL 5 1
+c float(5,2) NULL NULL 5 2
+d decimal(6,4) NULL NULL 6 4
+e float NULL NULL 12 NULL
+f decimal(6,3) NULL NULL 6 3
+g int(11) NULL NULL 10 0
+h double(10,3) NULL NULL 10 3
+i double NULL NULL 22 NULL
+drop table t1;
+create table t115 as select table_name, column_name, column_type
+from information_schema.columns where table_name = 'proc';
+select * from t115;
+table_name column_name column_type
+proc db char(64)
+proc name char(64)
+proc type enum('FUNCTION','PROCEDURE','PACKAGE','PACKAGE BODY')
+proc specific_name char(64)
+proc language enum('SQL')
+proc sql_data_access enum('CONTAINS_SQL','NO_SQL','READS_SQL_DATA','MODIFIES_SQL_DATA')
+proc is_deterministic enum('YES','NO')
+proc security_type enum('INVOKER','DEFINER')
+proc param_list blob
+proc returns longblob
+proc body longblob
+proc definer char(141)
+proc created timestamp
+proc modified timestamp
+proc sql_mode set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL','SIMULTANEOUS_ASSIGNMENT')
+proc comment text
+proc character_set_client char(32)
+proc collation_connection char(32)
+proc db_collation char(32)
+proc body_utf8 longblob
+proc aggregate enum('NONE','GROUP')
+drop table t115;
+create procedure p108 () begin declare c cursor for select data_type
+from information_schema.columns; open c; open c; end;//
+call p108()//
+ERROR 24000: Cursor is already open
+drop procedure p108;
+create view v1 as select A1.table_name from information_schema.TABLES A1
+where table_name= "user";
+select * from v1;
+table_name
+user
+drop view v1;
+create view vo as select 'a' union select 'a';
+show index from vo;
+Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
+select * from information_schema.TABLE_CONSTRAINTS where
+TABLE_NAME= "vo";
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_SCHEMA TABLE_NAME CONSTRAINT_TYPE
+select * from information_schema.KEY_COLUMN_USAGE where
+TABLE_NAME= "vo";
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT REFERENCED_TABLE_SCHEMA REFERENCED_TABLE_NAME REFERENCED_COLUMN_NAME
+drop view vo;
+select TABLE_NAME,TABLE_TYPE,ENGINE
+from information_schema.tables
+where table_schema='information_schema' limit 2;
+TABLE_NAME TABLE_TYPE ENGINE
+ALL_PLUGINS SYSTEM VIEW Aria
+APPLICABLE_ROLES SYSTEM VIEW MEMORY
+show tables from information_schema like "T%";
+Tables_in_information_schema (T%)
+TABLES
+TABLESPACES
+TABLE_CONSTRAINTS
+TABLE_PRIVILEGES
+TABLE_STATISTICS
+TRIGGERS
+create database information_schema;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+use information_schema;
+show full tables like "T%";
+Tables_in_information_schema (T%) Table_type
+TABLES SYSTEM VIEW
+TABLESPACES SYSTEM VIEW
+TABLE_CONSTRAINTS SYSTEM VIEW
+TABLE_PRIVILEGES SYSTEM VIEW
+TABLE_STATISTICS SYSTEM VIEW
+TRIGGERS SYSTEM VIEW
+create table t1(a int);
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+use test;
+show tables;
+Tables_in_test
+use information_schema;
+show tables like "T%";
+Tables_in_information_schema (T%)
+TABLES
+TABLESPACES
+TABLE_CONSTRAINTS
+TABLE_PRIVILEGES
+TABLE_STATISTICS
+TRIGGERS
+select table_name from tables where table_name='user';
+table_name
+user
+select column_name, privileges from columns
+where table_name='user' and column_name like '%o%';
+column_name privileges
+Host select,insert,update,references
+Password select,insert,update,references
+Drop_priv select,insert,update,references
+Reload_priv select,insert,update,references
+Shutdown_priv select,insert,update,references
+Process_priv select,insert,update,references
+Show_db_priv select,insert,update,references
+Lock_tables_priv select,insert,update,references
+Show_view_priv select,insert,update,references
+Create_routine_priv select,insert,update,references
+Alter_routine_priv select,insert,update,references
+Delete_history_priv select,insert,update,references
+max_questions select,insert,update,references
+max_connections select,insert,update,references
+max_user_connections select,insert,update,references
+authentication_string select,insert,update,references
+password_expired select,insert,update,references
+is_role select,insert,update,references
+default_role select,insert,update,references
+use test;
+create function sub1(i int) returns int
+return i+1;
+create table t1(f1 int);
+create view v2 (c) as select f1 from t1;
+create view v3 (c) as select sub1(1);
+create table t4(f1 int, KEY f1_key (f1));
+drop table t1;
+drop function sub1;
+select table_name from information_schema.views
+where table_schema='test';
+table_name
+v2
+v3
+select table_name from information_schema.views
+where table_schema='test';
+table_name
+v2
+v3
+select column_name from information_schema.columns
+where table_schema='test' and table_name='t4';
+column_name
+f1
+select column_name from information_schema.columns
+where table_schema='test' and table_name='v2';
+column_name
+Warnings:
+Warning 1356 View 'test.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+select column_name from information_schema.columns
+where table_schema='test' and table_name='v3';
+column_name
+Warnings:
+Warning 1356 View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+select index_name from information_schema.statistics where table_schema='test';
+index_name
+f1_key
+select constraint_name from information_schema.table_constraints
+where table_schema='test';
+constraint_name
+show create view v2;
+View Create View character_set_client collation_connection
+v2 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS select `test`.`t1`.`f1` AS `c` from `t1` latin1 latin1_swedish_ci
+Warnings:
+Warning 1356 View 'test.v2' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+show create table v3;
+View Create View character_set_client collation_connection
+v3 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v3` AS select `sub1`(1) AS `c` latin1 latin1_swedish_ci
+Warnings:
+Warning 1356 View 'test.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+drop view v2;
+drop view v3;
+drop table t4;
+select * from information_schema.table_names;
+ERROR 42S02: Unknown table 'table_names' in information_schema
+select column_type from information_schema.columns
+where table_schema="information_schema" and table_name="COLUMNS" and
+(column_name="character_set_name" or column_name="collation_name");
+column_type
+varchar(32)
+varchar(32)
+select TABLE_ROWS from information_schema.tables where
+table_schema="information_schema" and table_name="COLUMNS";
+TABLE_ROWS
+NULL
+select table_type from information_schema.tables
+where table_schema="mysql" and table_name="user";
+table_type
+BASE TABLE
+show open tables where `table` like "user";
+Database Table In_use Name_locked
+mysql user 0 0
+show status where variable_name like "%database%";
+Variable_name Value
+Acl_database_grants 2
+Com_show_databases 3
+show variables where variable_name like "skip_show_databas";
+Variable_name Value
+show global status like "Threads_running";
+Variable_name Value
+Threads_running #
+create table t1(f1 int);
+create table t2(f2 int);
+create view v1 as select * from t1, t2;
+set @got_val= (select count(*) from information_schema.columns);
+drop view v1;
+drop table t1, t2;
+use test;
+CREATE TABLE t_crashme ( f1 BIGINT);
+CREATE VIEW a1 (t_CRASHME) AS SELECT f1 FROM t_crashme GROUP BY f1;
+CREATE VIEW a2 AS SELECT t_CRASHME FROM a1;
+count(*)
+68
+drop view a2, a1;
+drop table t_crashme;
+select table_schema,table_name, column_name from
+information_schema.columns
+where data_type = 'longtext' and table_schema != 'performance_schema'
+order by binary table_name, ordinal_position;
+table_schema table_name column_name
+information_schema ALL_PLUGINS PLUGIN_DESCRIPTION
+information_schema CHECK_CONSTRAINTS CHECK_CLAUSE
+information_schema COLUMNS COLUMN_DEFAULT
+information_schema COLUMNS COLUMN_TYPE
+information_schema COLUMNS GENERATION_EXPRESSION
+information_schema EVENTS EVENT_DEFINITION
+information_schema PARAMETERS DTD_IDENTIFIER
+information_schema PARTITIONS PARTITION_EXPRESSION
+information_schema PARTITIONS SUBPARTITION_EXPRESSION
+information_schema PARTITIONS PARTITION_DESCRIPTION
+information_schema PLUGINS PLUGIN_DESCRIPTION
+information_schema PROCESSLIST INFO
+information_schema ROUTINES DTD_IDENTIFIER
+information_schema ROUTINES ROUTINE_DEFINITION
+information_schema ROUTINES ROUTINE_COMMENT
+information_schema SYSTEM_VARIABLES ENUM_VALUE_LIST
+information_schema TRIGGERS ACTION_CONDITION
+information_schema TRIGGERS ACTION_STATEMENT
+information_schema VIEWS VIEW_DEFINITION
+select table_name, column_name, data_type from information_schema.columns
+where data_type = 'datetime' and table_name not like 'innodb_%'
+order by binary table_name, ordinal_position;
+table_name column_name data_type
+EVENTS EXECUTE_AT datetime
+EVENTS STARTS datetime
+EVENTS ENDS datetime
+EVENTS CREATED datetime
+EVENTS LAST_ALTERED datetime
+EVENTS LAST_EXECUTED datetime
+FILES CREATION_TIME datetime
+FILES LAST_UPDATE_TIME datetime
+FILES LAST_ACCESS_TIME datetime
+FILES CREATE_TIME datetime
+FILES UPDATE_TIME datetime
+FILES CHECK_TIME datetime
+PARTITIONS CREATE_TIME datetime
+PARTITIONS UPDATE_TIME datetime
+PARTITIONS CHECK_TIME datetime
+ROUTINES CREATED datetime
+ROUTINES LAST_ALTERED datetime
+TABLES CREATE_TIME datetime
+TABLES UPDATE_TIME datetime
+TABLES CHECK_TIME datetime
+TRIGGERS CREATED datetime
+event execute_at datetime
+event last_executed datetime
+event starts datetime
+event ends datetime
+SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES A
+WHERE NOT EXISTS
+(SELECT * FROM INFORMATION_SCHEMA.COLUMNS B
+WHERE A.TABLE_SCHEMA = B.TABLE_SCHEMA
+AND A.TABLE_NAME = B.TABLE_NAME);
+COUNT(*)
+0
+create table t1
+( x_bigint BIGINT,
+x_integer INTEGER,
+x_smallint SMALLINT,
+x_decimal DECIMAL(5,3),
+x_numeric NUMERIC(5,3),
+x_real REAL,
+x_float FLOAT,
+x_double_precision DOUBLE PRECISION );
+SELECT COLUMN_NAME, CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH
+FROM INFORMATION_SCHEMA.COLUMNS
+WHERE TABLE_NAME= 't1';
+COLUMN_NAME CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH
+x_bigint NULL NULL
+x_integer NULL NULL
+x_smallint NULL NULL
+x_decimal NULL NULL
+x_numeric NULL NULL
+x_real NULL NULL
+x_float NULL NULL
+x_double_precision NULL NULL
+drop table t1;
+grant select on test.* to mysqltest_4@localhost;
+connect user10261,localhost,mysqltest_4,,;
+connection user10261;
+SELECT TABLE_NAME, COLUMN_NAME, PRIVILEGES FROM INFORMATION_SCHEMA.COLUMNS
+where COLUMN_NAME='TABLE_NAME' and table_name not like 'innodb%';
+TABLE_NAME COLUMN_NAME PRIVILEGES
+CHECK_CONSTRAINTS TABLE_NAME select
+COLUMNS TABLE_NAME select
+COLUMN_PRIVILEGES TABLE_NAME select
+FILES TABLE_NAME select
+INDEX_STATISTICS TABLE_NAME select
+KEY_COLUMN_USAGE TABLE_NAME select
+PARTITIONS TABLE_NAME select
+REFERENTIAL_CONSTRAINTS TABLE_NAME select
+STATISTICS TABLE_NAME select
+TABLES TABLE_NAME select
+TABLE_CONSTRAINTS TABLE_NAME select
+TABLE_PRIVILEGES TABLE_NAME select
+TABLE_STATISTICS TABLE_NAME select
+VIEWS TABLE_NAME select
+connection default;
+disconnect user10261;
+delete from mysql.user where user='mysqltest_4';
+delete from mysql.db where user='mysqltest_4';
+flush privileges;
+create table t1 (i int, j int);
+create trigger trg1 before insert on t1 for each row
+begin
+if new.j > 10 then
+set new.j := 10;
+end if;
+end|
+create trigger trg2 before update on t1 for each row
+begin
+if old.i % 2 = 0 then
+set new.j := -1;
+end if;
+end|
+create trigger trg3 after update on t1 for each row
+begin
+if new.j = -1 then
+set @fired:= "Yes";
+end if;
+end|
+show triggers;
+Trigger Event Table Statement Timing Created sql_mode Definer character_set_client collation_connection Database Collation
+trg1 INSERT t1 begin
+if new.j > 10 then
+set new.j := 10;
+end if;
+end BEFORE # root@localhost latin1 latin1_swedish_ci latin1_swedish_ci
+trg2 UPDATE t1 begin
+if old.i % 2 = 0 then
+set new.j := -1;
+end if;
+end BEFORE # root@localhost latin1 latin1_swedish_ci latin1_swedish_ci
+trg3 UPDATE t1 begin
+if new.j = -1 then
+set @fired:= "Yes";
+end if;
+end AFTER # root@localhost latin1 latin1_swedish_ci latin1_swedish_ci
+select * from information_schema.triggers where trigger_schema in ('mysql', 'information_schema', 'test', 'mysqltest');
+TRIGGER_CATALOG TRIGGER_SCHEMA TRIGGER_NAME EVENT_MANIPULATION EVENT_OBJECT_CATALOG EVENT_OBJECT_SCHEMA EVENT_OBJECT_TABLE ACTION_ORDER ACTION_CONDITION ACTION_STATEMENT ACTION_ORIENTATION ACTION_TIMING ACTION_REFERENCE_OLD_TABLE ACTION_REFERENCE_NEW_TABLE ACTION_REFERENCE_OLD_ROW ACTION_REFERENCE_NEW_ROW CREATED SQL_MODE DEFINER CHARACTER_SET_CLIENT COLLATION_CONNECTION DATABASE_COLLATION
+def test trg1 INSERT def test t1 1 NULL begin
+if new.j > 10 then
+set new.j := 10;
+end if;
+end ROW BEFORE NULL NULL OLD NEW # root@localhost latin1 latin1_swedish_ci latin1_swedish_ci
+def test trg2 UPDATE def test t1 1 NULL begin
+if old.i % 2 = 0 then
+set new.j := -1;
+end if;
+end ROW BEFORE NULL NULL OLD NEW # root@localhost latin1 latin1_swedish_ci latin1_swedish_ci
+def test trg3 UPDATE def test t1 1 NULL begin
+if new.j = -1 then
+set @fired:= "Yes";
+end if;
+end ROW AFTER NULL NULL OLD NEW # root@localhost latin1 latin1_swedish_ci latin1_swedish_ci
+drop trigger trg1;
+drop trigger trg2;
+drop trigger trg3;
+drop table t1;
+create database mysqltest;
+create table mysqltest.t1 (f1 int, f2 int);
+create table mysqltest.t2 (f1 int);
+grant select (f1) on mysqltest.t1 to user1@localhost;
+grant select on mysqltest.t2 to user2@localhost;
+grant select on mysqltest.* to user3@localhost;
+grant select on *.* to user4@localhost;
+connect con1,localhost,user1,,mysqltest;
+connect con2,localhost,user2,,mysqltest;
+connect con3,localhost,user3,,mysqltest;
+connect con4,localhost,user4,,;
+connection con1;
+select * from information_schema.column_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME PRIVILEGE_TYPE IS_GRANTABLE
+'user1'@'localhost' def mysqltest t1 f1 SELECT NO
+select * from information_schema.table_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PRIVILEGE_TYPE IS_GRANTABLE
+select * from information_schema.schema_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA PRIVILEGE_TYPE IS_GRANTABLE
+select * from information_schema.user_privileges order by grantee;
+GRANTEE TABLE_CATALOG PRIVILEGE_TYPE IS_GRANTABLE
+'user1'@'localhost' def USAGE NO
+show grants;
+Grants for user1@localhost
+GRANT USAGE ON *.* TO `user1`@`localhost`
+GRANT SELECT (f1) ON `mysqltest`.`t1` TO `user1`@`localhost`
+connection con2;
+select * from information_schema.column_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME PRIVILEGE_TYPE IS_GRANTABLE
+select * from information_schema.table_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PRIVILEGE_TYPE IS_GRANTABLE
+'user2'@'localhost' def mysqltest t2 SELECT NO
+select * from information_schema.schema_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA PRIVILEGE_TYPE IS_GRANTABLE
+select * from information_schema.user_privileges order by grantee;
+GRANTEE TABLE_CATALOG PRIVILEGE_TYPE IS_GRANTABLE
+'user2'@'localhost' def USAGE NO
+show grants;
+Grants for user2@localhost
+GRANT USAGE ON *.* TO `user2`@`localhost`
+GRANT SELECT ON `mysqltest`.`t2` TO `user2`@`localhost`
+connection con3;
+select * from information_schema.column_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME PRIVILEGE_TYPE IS_GRANTABLE
+select * from information_schema.table_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PRIVILEGE_TYPE IS_GRANTABLE
+select * from information_schema.schema_privileges order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA PRIVILEGE_TYPE IS_GRANTABLE
+'user3'@'localhost' def mysqltest SELECT NO
+select * from information_schema.user_privileges order by grantee;
+GRANTEE TABLE_CATALOG PRIVILEGE_TYPE IS_GRANTABLE
+'user3'@'localhost' def USAGE NO
+show grants;
+Grants for user3@localhost
+GRANT USAGE ON *.* TO `user3`@`localhost`
+GRANT SELECT ON `mysqltest`.* TO `user3`@`localhost`
+connection con4;
+select * from information_schema.column_privileges where grantee like '\'user%'
+order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME PRIVILEGE_TYPE IS_GRANTABLE
+'user1'@'localhost' def mysqltest t1 f1 SELECT NO
+select * from information_schema.table_privileges where grantee like '\'user%'
+order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PRIVILEGE_TYPE IS_GRANTABLE
+'user2'@'localhost' def mysqltest t2 SELECT NO
+select * from information_schema.schema_privileges where grantee like '\'user%'
+order by grantee;
+GRANTEE TABLE_CATALOG TABLE_SCHEMA PRIVILEGE_TYPE IS_GRANTABLE
+'user3'@'localhost' def mysqltest SELECT NO
+select * from information_schema.user_privileges where grantee like '\'user%'
+order by grantee;
+GRANTEE TABLE_CATALOG PRIVILEGE_TYPE IS_GRANTABLE
+'user1'@'localhost' def USAGE NO
+'user2'@'localhost' def USAGE NO
+'user3'@'localhost' def USAGE NO
+'user4'@'localhost' def SELECT NO
+show grants;
+Grants for user4@localhost
+GRANT SELECT ON *.* TO `user4`@`localhost`
+connection default;
+disconnect con1;
+disconnect con2;
+disconnect con3;
+disconnect con4;
+drop user user1@localhost, user2@localhost, user3@localhost, user4@localhost;
+use test;
+drop database mysqltest;
+drop procedure if exists p1;
+drop procedure if exists p2;
+create procedure p1 () modifies sql data set @a = 5;
+create procedure p2 () set @a = 5;
+select sql_data_access from information_schema.routines
+where specific_name like 'p%';
+sql_data_access
+MODIFIES SQL DATA
+CONTAINS SQL
+drop procedure p1;
+drop procedure p2;
+show create database information_schema;
+Database Create Database
+information_schema CREATE DATABASE `information_schema` /*!40100 DEFAULT CHARACTER SET utf8 */
+create table t1(f1 LONGBLOB, f2 LONGTEXT);
+select column_name,data_type,CHARACTER_OCTET_LENGTH,
+CHARACTER_MAXIMUM_LENGTH
+from information_schema.columns
+where table_name='t1';
+column_name data_type CHARACTER_OCTET_LENGTH CHARACTER_MAXIMUM_LENGTH
+f1 longblob 4294967295 4294967295
+f2 longtext 4294967295 4294967295
+drop table t1;
+create table t1(f1 tinyint, f2 SMALLINT, f3 mediumint, f4 int,
+f5 BIGINT, f6 BIT, f7 bit(64));
+select column_name, NUMERIC_PRECISION, NUMERIC_SCALE
+from information_schema.columns
+where table_name='t1';
+column_name NUMERIC_PRECISION NUMERIC_SCALE
+f1 3 0
+f2 5 0
+f3 7 0
+f4 10 0
+f5 19 0
+f6 1 NULL
+f7 64 NULL
+drop table t1;
+create table t1 (f1 integer);
+create trigger tr1 after insert on t1 for each row set @test_var=42;
+use information_schema;
+select trigger_schema, trigger_name from triggers where
+trigger_name='tr1';
+trigger_schema trigger_name
+test tr1
+use test;
+drop table t1;
+create table t1 (a int not null, b int);
+use information_schema;
+select column_name, column_default from columns
+where table_schema='test' and table_name='t1';
+column_name column_default
+a NULL
+b NULL
+use test;
+show columns from t1;
+Field Type Null Key Default Extra
+a int(11) NO NULL
+b int(11) YES NULL
+drop table t1;
+CREATE TABLE t1 (a int);
+CREATE TABLE t2 (b int);
+SHOW TABLE STATUS FROM test
+WHERE name IN ( SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
+WHERE TABLE_SCHEMA='test' AND TABLE_TYPE='BASE TABLE');
+Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment Max_index_length Temporary
+t1 MyISAM 10 Fixed 0 0 0 # 1024 0 NULL # # NULL latin1_swedish_ci NULL # N
+t2 MyISAM 10 Fixed 0 0 0 # 1024 0 NULL # # NULL latin1_swedish_ci NULL # N
+DROP TABLE t1,t2;
+create table t1(f1 int);
+create view v1 (c) as select f1 from t1;
+connect con5,localhost,root,,*NO-ONE*;
+select database();
+database()
+NULL
+show fields from test.v1;
+Field Type Null Key Default Extra
+c int(11) YES NULL
+connection default;
+disconnect con5;
+drop view v1;
+drop table t1;
+alter database information_schema;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
+drop database information_schema;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+drop table information_schema.tables;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+alter table information_schema.tables;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+use information_schema;
+create temporary table schemata(f1 char(10));
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+CREATE PROCEDURE p1 ()
+BEGIN
+SELECT 'foo' FROM DUAL;
+END |
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+select ROUTINE_NAME from routines where ROUTINE_SCHEMA='information_schema';
+ROUTINE_NAME
+grant all on information_schema.* to 'user1'@'localhost';
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+grant select on information_schema.* to 'user1'@'localhost';
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+use test;
+create table t1(id int);
+insert into t1(id) values (1);
+select 1 from (select 1 from test.t1) a;
+1
+1
+use information_schema;
+select 1 from (select 1 from test.t1) a;
+1
+1
+use test;
+drop table t1;
+create table t1 (f1 int(11));
+create view v1 as select * from t1;
+drop table t1;
+select table_type from information_schema.tables
+where table_name="v1";
+table_type
+VIEW
+drop view v1;
+create temporary table t1(f1 int, index(f1));
+show columns from t1;
+Field Type Null Key Default Extra
+f1 int(11) YES MUL NULL
+describe t1;
+Field Type Null Key Default Extra
+f1 int(11) YES MUL NULL
+show indexes from t1;
+Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
+t1 1 f1 1 f1 A NULL NULL NULL YES BTREE
+drop table t1;
+create table t1(f1 binary(32), f2 varbinary(64));
+select character_maximum_length, character_octet_length
+from information_schema.columns where table_name='t1';
+character_maximum_length character_octet_length
+32 32
+64 64
+drop table t1;
+CREATE TABLE t1 (f1 BIGINT, f2 VARCHAR(20), f3 BIGINT);
+INSERT INTO t1 SET f1 = 1, f2 = 'Schoenenbourg', f3 = 1;
+CREATE FUNCTION func2() RETURNS BIGINT RETURN 1;
+CREATE FUNCTION func1() RETURNS BIGINT
+BEGIN
+RETURN ( SELECT COUNT(*) FROM INFORMATION_SCHEMA.VIEWS);
+END//
+CREATE VIEW v1 AS SELECT 1 FROM t1
+WHERE f3 = (SELECT func2 ());
+SELECT func1();
+func1()
+1
+DROP TABLE t1;
+DROP VIEW v1;
+DROP FUNCTION func1;
+DROP FUNCTION func2;
+select column_type, group_concat(table_schema, '.', table_name), count(*) as num
+from information_schema.columns where
+table_schema='information_schema' and
+(column_type = 'varchar(7)' or column_type = 'varchar(20)'
+ or column_type = 'varchar(27)')
+group by column_type order by num;
+column_type group_concat(table_schema, '.', table_name) num
+varchar(7) information_schema.ROUTINES,information_schema.VIEWS 2
+varchar(20) information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.ALL_PLUGINS,information_schema.FILES,information_schema.FILES,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PLUGINS,information_schema.PROFILING 9
+create table t1(f1 char(1) not null, f2 char(9) not null)
+default character set utf8;
+select CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH from
+information_schema.columns where table_schema='test' and table_name = 't1';
+CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH
+1 3
+9 27
+drop table t1;
+use mysql;
+INSERT INTO `proc` VALUES ('test','','PROCEDURE','','SQL','CONTAINS_SQL',
+'NO','DEFINER','','','BEGIN\r\n \r\nEND','root@%','2006-03-02 18:40:03',
+'2006-03-02 18:40:03','','','utf8','utf8_general_ci','utf8_general_ci','n/a', 'NONE');
+select routine_name from information_schema.routines where ROUTINE_SCHEMA='test';
+routine_name
+
+delete from proc where name='';
+use test;
+grant select on test.* to mysqltest_1@localhost;
+create table t1 (id int);
+create view v1 as select * from t1;
+create definer = mysqltest_1@localhost
+sql security definer view v2 as select 1;
+connect con16681,localhost,mysqltest_1,,test;
+connection con16681;
+select * from information_schema.views
+where table_name='v1' or table_name='v2' order by table_name;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME VIEW_DEFINITION CHECK_OPTION IS_UPDATABLE DEFINER SECURITY_TYPE CHARACTER_SET_CLIENT COLLATION_CONNECTION ALGORITHM
+def test v1 NONE YES root@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+def test v2 select 1 AS `1` NONE NO mysqltest_1@localhost DEFINER latin1 latin1_swedish_ci UNDEFINED
+connection default;
+disconnect con16681;
+drop view v1, v2;
+drop table t1;
+drop user mysqltest_1@localhost;
+set @a:= '.';
+create table t1(f1 char(5));
+create table t2(f1 char(5));
+select concat(@a, table_name), @a, table_name
+from information_schema.tables where table_schema = 'test' order by table_name;
+concat(@a, table_name) @a table_name
+.t1 . t1
+.t2 . t2
+drop table t1,t2;
+DROP PROCEDURE IF EXISTS p1;
+DROP FUNCTION IF EXISTS f1;
+CREATE PROCEDURE p1() SET @a= 1;
+CREATE FUNCTION f1() RETURNS INT RETURN @a + 1;
+CREATE USER mysql_bug20230@localhost;
+GRANT EXECUTE ON PROCEDURE p1 TO mysql_bug20230@localhost;
+GRANT EXECUTE ON FUNCTION f1 TO mysql_bug20230@localhost;
+SELECT ROUTINE_NAME, ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_SCHEMA='test';
+ROUTINE_NAME ROUTINE_DEFINITION
+f1 RETURN @a + 1
+p1 SET @a= 1
+SHOW CREATE PROCEDURE p1;
+Procedure sql_mode Create Procedure character_set_client collation_connection Database Collation
+p1 CREATE DEFINER=`root`@`localhost` PROCEDURE `p1`()
+SET @a= 1 latin1 latin1_swedish_ci latin1_swedish_ci
+SHOW CREATE FUNCTION f1;
+Function sql_mode Create Function character_set_client collation_connection Database Collation
+f1 CREATE DEFINER=`root`@`localhost` FUNCTION `f1`() RETURNS int(11)
+RETURN @a + 1 latin1 latin1_swedish_ci latin1_swedish_ci
+connect conn1, localhost, mysql_bug20230,,;
+SELECT ROUTINE_NAME, ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_SCHEMA='test';
+ROUTINE_NAME ROUTINE_DEFINITION
+f1 NULL
+p1 NULL
+SHOW CREATE PROCEDURE p1;
+Procedure sql_mode Create Procedure character_set_client collation_connection Database Collation
+p1 NULL latin1 latin1_swedish_ci latin1_swedish_ci
+SHOW CREATE FUNCTION f1;
+Function sql_mode Create Function character_set_client collation_connection Database Collation
+f1 NULL latin1 latin1_swedish_ci latin1_swedish_ci
+CALL p1();
+SELECT f1();
+f1()
+2
+disconnect conn1;
+connection default;
+DROP FUNCTION f1;
+DROP PROCEDURE p1;
+DROP USER mysql_bug20230@localhost;
+SELECT MAX(table_name) FROM information_schema.tables WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test') and table_name not like 'xtradb%';
+MAX(table_name)
+VIEWS
+SELECT table_name from information_schema.tables
+WHERE table_name=(SELECT MAX(table_name)
+FROM information_schema.tables WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test') and table_name not like 'xtradb%');
+table_name
+VIEWS
+DROP TABLE IF EXISTS bug23037;
+DROP FUNCTION IF EXISTS get_value;
+SELECT COLUMN_NAME, MD5(COLUMN_DEFAULT), LENGTH(COLUMN_DEFAULT) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='bug23037';
+COLUMN_NAME MD5(COLUMN_DEFAULT) LENGTH(COLUMN_DEFAULT)
+fld1 85ea6a55b8f0058e640b3de141a3a9d9 65534
+SELECT MD5(get_value());
+MD5(get_value())
+76176d2daa20c582375b8dcfc18033cd
+SELECT COLUMN_NAME, MD5(COLUMN_DEFAULT), LENGTH(COLUMN_DEFAULT), COLUMN_DEFAULT=get_value() FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='bug23037';
+COLUMN_NAME MD5(COLUMN_DEFAULT) LENGTH(COLUMN_DEFAULT) COLUMN_DEFAULT=get_value()
+fld1 85ea6a55b8f0058e640b3de141a3a9d9 65534 0
+DROP TABLE bug23037;
+DROP FUNCTION get_value;
+set @tmp_optimizer_switch=@@optimizer_switch;
+set optimizer_switch='derived_merge=off,derived_with_keys=off';
+create view v1 as
+select table_schema as object_schema,
+table_name as object_name,
+table_type as object_type
+from information_schema.tables
+order by object_schema;
+explain select * from v1;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE tables ALL NULL NULL NULL NULL NULL Open_frm_only; Scanned all databases; Using filesort
+explain select * from (select table_name from information_schema.tables) as a;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
+2 DERIVED tables ALL NULL NULL NULL NULL NULL Skip_open_table; Scanned all databases
+set optimizer_switch=@tmp_optimizer_switch;
+drop view v1;
+create table t1 (f1 int(11));
+create table t2 (f1 int(11), f2 int(11));
+select table_name from information_schema.tables
+where table_schema = 'test' and table_name not in
+(select table_name from information_schema.columns
+where table_schema = 'test' and column_name = 'f3')
+order by table_name;
+table_name
+t1
+t2
+drop table t1,t2;
+create table t1(f1 int);
+create view v1 as select f1+1 as a from t1;
+create table t2 (f1 int, f2 int);
+create view v2 as select f1+1 as a, f2 as b from t2;
+select table_name, is_updatable from information_schema.views order by table_name;
+table_name is_updatable
+v1 NO
+v2 YES
+delete from v1;
+drop view v1,v2;
+drop table t1,t2;
+alter database;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
+alter database test;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
+create database mysqltest;
+create table mysqltest.t1(a int, b int, c int);
+create trigger mysqltest.t1_ai after insert on mysqltest.t1
+for each row set @a = new.a + new.b + new.c;
+grant select(b) on mysqltest.t1 to mysqltest_1@localhost;
+select trigger_name from information_schema.triggers
+where event_object_table='t1';
+trigger_name
+t1_ai
+show triggers from mysqltest;
+Trigger Event Table Statement Timing Created sql_mode Definer character_set_client collation_connection Database Collation
+t1_ai INSERT t1 set @a = new.a + new.b + new.c AFTER # root@localhost latin1 latin1_swedish_ci latin1_swedish_ci
+connect con27629,localhost,mysqltest_1,,mysqltest;
+show columns from t1;
+Field Type Null Key Default Extra
+b int(11) YES NULL
+select column_name from information_schema.columns where table_name='t1';
+column_name
+b
+show triggers;
+Trigger Event Table Statement Timing Created sql_mode Definer character_set_client collation_connection Database Collation
+select trigger_name from information_schema.triggers
+where event_object_table='t1';
+trigger_name
+connection default;
+disconnect con27629;
+drop user mysqltest_1@localhost;
+drop database mysqltest;
+create table t1 (
+f1 varchar(50),
+f2 varchar(50) not null,
+f3 varchar(50) default '',
+f4 varchar(50) default NULL,
+f5 bigint not null,
+f6 bigint not null default 10,
+f7 datetime not null,
+f8 datetime default '2006-01-01'
+);
+select column_default from information_schema.columns where table_name= 't1';
+column_default
+NULL
+NULL
+''
+NULL
+NULL
+10
+NULL
+'2006-01-01 00:00:00'
+show columns from t1;
+Field Type Null Key Default Extra
+f1 varchar(50) YES NULL
+f2 varchar(50) NO NULL
+f3 varchar(50) YES
+f4 varchar(50) YES NULL
+f5 bigint(20) NO NULL
+f6 bigint(20) NO 10
+f7 datetime NO NULL
+f8 datetime YES 2006-01-01 00:00:00
+drop table t1;
+show fields from information_schema.table_names;
+ERROR 42S02: Unknown table 'table_names' in information_schema
+show keys from information_schema.table_names;
+ERROR 42S02: Unknown table 'table_names' in information_schema
+USE information_schema;
+SET max_heap_table_size = 16384;
+CREATE TABLE test.t1( a INT );
+SELECT *
+FROM tables ta
+JOIN collations co ON ( co.collation_name = ta.table_catalog )
+JOIN character_sets cs ON ( cs.character_set_name = ta.table_catalog );
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME TABLE_TYPE ENGINE VERSION ROW_FORMAT TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE AUTO_INCREMENT CREATE_TIME UPDATE_TIME CHECK_TIME TABLE_COLLATION CHECKSUM CREATE_OPTIONS TABLE_COMMENT MAX_INDEX_LENGTH TEMPORARY COLLATION_NAME CHARACTER_SET_NAME ID IS_DEFAULT IS_COMPILED SORTLEN CHARACTER_SET_NAME DEFAULT_COLLATE_NAME DESCRIPTION MAXLEN
+DROP TABLE test.t1;
+SET max_heap_table_size = DEFAULT;
+USE test;
+End of 5.0 tests.
+select * from information_schema.engines WHERE ENGINE="MyISAM";
+ENGINE SUPPORT COMMENT TRANSACTIONS XA SAVEPOINTS
+MyISAM DEFAULT Non-transactional engine with good performance and small data footprint NO NO NO
+grant select on *.* to user3148@localhost;
+connect con3148,localhost,user3148,,test;
+connection con3148;
+select user,db from information_schema.processlist;
+user db
+user3148 test
+connection default;
+disconnect con3148;
+drop user user3148@localhost;
+connect pslistcon,localhost,root,,test;
+SELECT 'other connection here' AS who;
+who
+other connection here
+connection default;
+SELECT IF(`time` > 0, 'OK', `time`) AS time_low,
+IF(`time` < 1000, 'OK', `time`) AS time_high,
+IF(time_ms >= 1000, 'OK', time_ms) AS time_ms_low,
+IF(time_ms < 1000000, 'OK', time_ms) AS time_ms_high
+FROM INFORMATION_SCHEMA.PROCESSLIST
+WHERE ID=@tid;
+time_low time_high time_ms_low time_ms_high
+OK OK OK OK
+disconnect pslistcon;
+DROP TABLE IF EXISTS server_status;
+DROP EVENT IF EXISTS event_status;
+SET GLOBAL event_scheduler=1;
+CREATE EVENT event_status
+ON SCHEDULE AT NOW()
+ON COMPLETION NOT PRESERVE
+DO
+BEGIN
+CREATE TABLE server_status
+SELECT variable_name
+FROM information_schema.global_status
+WHERE variable_name LIKE 'ABORTED_CONNECTS' OR
+variable_name LIKE 'BINLOG_CACHE_DISK_USE';
+END$$
+SELECT variable_name FROM server_status;
+variable_name
+ABORTED_CONNECTS
+BINLOG_CACHE_DISK_USE
+DROP TABLE server_status;
+SET GLOBAL event_scheduler=0;
+explain select table_name from information_schema.views where
+table_schema='test' and table_name='v1';
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE views ALL NULL TABLE_SCHEMA,TABLE_NAME NULL NULL NULL Using where; Open_frm_only; Scanned 0 databases
+explain select * from information_schema.tables;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE tables ALL NULL NULL NULL NULL NULL Open_full_table; Scanned all databases
+explain select * from information_schema.collations;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE collations ALL NULL NULL NULL NULL NULL
+explain select * from information_schema.tables where
+table_schema='test' and table_name= 't1';
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE tables ALL NULL TABLE_SCHEMA,TABLE_NAME NULL NULL NULL Using where; Open_full_table; Scanned 0 databases
+explain select table_name, table_type from information_schema.tables
+where table_schema='test';
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE tables ALL NULL TABLE_SCHEMA NULL NULL NULL Using where; Open_frm_only; Scanned 1 database
+explain select b.table_name
+from information_schema.tables a, information_schema.columns b
+where a.table_name='t1' and a.table_schema='test' and b.table_name=a.table_name;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE a ALL NULL TABLE_SCHEMA,TABLE_NAME NULL NULL NULL Using where; Skip_open_table; Scanned 0 databases
+1 SIMPLE b ALL NULL NULL NULL NULL NULL Using where; Open_frm_only; Scanned all databases; Using join buffer (flat, BNL join)
+SELECT * FROM INFORMATION_SCHEMA.SCHEMATA
+WHERE SCHEMA_NAME = 'mysqltest';
+CATALOG_NAME SCHEMA_NAME DEFAULT_CHARACTER_SET_NAME DEFAULT_COLLATION_NAME SQL_PATH
+SELECT * FROM INFORMATION_SCHEMA.SCHEMATA
+WHERE SCHEMA_NAME = '';
+CATALOG_NAME SCHEMA_NAME DEFAULT_CHARACTER_SET_NAME DEFAULT_COLLATION_NAME SQL_PATH
+SELECT * FROM INFORMATION_SCHEMA.SCHEMATA
+WHERE SCHEMA_NAME = 'test';
+CATALOG_NAME SCHEMA_NAME DEFAULT_CHARACTER_SET_NAME DEFAULT_COLLATION_NAME SQL_PATH
+def test latin1 latin1_swedish_ci NULL
+select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='mysql' AND TABLE_NAME='nonexisting';
+count(*)
+0
+select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='mysql' AND TABLE_NAME='';
+count(*)
+0
+select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='' AND TABLE_NAME='';
+count(*)
+0
+select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='' AND TABLE_NAME='nonexisting';
+count(*)
+0
+CREATE VIEW v1
+AS SELECT *
+FROM information_schema.tables;
+SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS where TABLE_NAME = 'v1';
+VIEW_DEFINITION
+select `information_schema`.`tables`.`TABLE_CATALOG` AS `TABLE_CATALOG`,`information_schema`.`tables`.`TABLE_SCHEMA` AS `TABLE_SCHEMA`,`information_schema`.`tables`.`TABLE_NAME` AS `TABLE_NAME`,`information_schema`.`tables`.`TABLE_TYPE` AS `TABLE_TYPE`,`information_schema`.`tables`.`ENGINE` AS `ENGINE`,`information_schema`.`tables`.`VERSION` AS `VERSION`,`information_schema`.`tables`.`ROW_FORMAT` AS `ROW_FORMAT`,`information_schema`.`tables`.`TABLE_ROWS` AS `TABLE_ROWS`,`information_schema`.`tables`.`AVG_ROW_LENGTH` AS `AVG_ROW_LENGTH`,`information_schema`.`tables`.`DATA_LENGTH` AS `DATA_LENGTH`,`information_schema`.`tables`.`MAX_DATA_LENGTH` AS `MAX_DATA_LENGTH`,`information_schema`.`tables`.`INDEX_LENGTH` AS `INDEX_LENGTH`,`information_schema`.`tables`.`DATA_FREE` AS `DATA_FREE`,`information_schema`.`tables`.`AUTO_INCREMENT` AS `AUTO_INCREMENT`,`information_schema`.`tables`.`CREATE_TIME` AS `CREATE_TIME`,`information_schema`.`tables`.`UPDATE_TIME` AS `UPDATE_TIME`,`information_sc
hema`.`tables`.`CHECK_TIME` AS `CHECK_TIME`,`information_schema`.`tables`.`TABLE_COLLATION` AS `TABLE_COLLATION`,`information_schema`.`tables`.`CHECKSUM` AS `CHECKSUM`,`information_schema`.`tables`.`CREATE_OPTIONS` AS `CREATE_OPTIONS`,`information_schema`.`tables`.`TABLE_COMMENT` AS `TABLE_COMMENT`,`information_schema`.`tables`.`MAX_INDEX_LENGTH` AS `MAX_INDEX_LENGTH`,`information_schema`.`tables`.`TEMPORARY` AS `TEMPORARY` from `information_schema`.`tables`
+DROP VIEW v1;
+SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA
+WHERE SCHEMA_NAME ='information_schema';
+SCHEMA_NAME
+information_schema
+SELECT TABLE_COLLATION FROM INFORMATION_SCHEMA.TABLES
+WHERE TABLE_SCHEMA='mysql' and TABLE_NAME= 'db';
+TABLE_COLLATION
+utf8_bin
+select * from information_schema.columns where table_schema = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION COLUMN_DEFAULT IS_NULLABLE DATA_TYPE CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH NUMERIC_PRECISION NUMERIC_SCALE DATETIME_PRECISION CHARACTER_SET_NAME COLLATION_NAME COLUMN_TYPE COLUMN_KEY EXTRA PRIVILEGES COLUMN_COMMENT IS_GENERATED GENERATION_EXPRESSION
+select * from `information_schema`.`COLUMNS` where `TABLE_NAME` = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION COLUMN_DEFAULT IS_NULLABLE DATA_TYPE CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH NUMERIC_PRECISION NUMERIC_SCALE DATETIME_PRECISION CHARACTER_SET_NAME COLLATION_NAME COLUMN_TYPE COLUMN_KEY EXTRA PRIVILEGES COLUMN_COMMENT IS_GENERATED GENERATION_EXPRESSION
+select * from `information_schema`.`KEY_COLUMN_USAGE` where `TABLE_SCHEMA` = NULL;
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT REFERENCED_TABLE_SCHEMA REFERENCED_TABLE_NAME REFERENCED_COLUMN_NAME
+select * from `information_schema`.`KEY_COLUMN_USAGE` where `TABLE_NAME` = NULL;
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT REFERENCED_TABLE_SCHEMA REFERENCED_TABLE_NAME REFERENCED_COLUMN_NAME
+select * from `information_schema`.`PARTITIONS` where `TABLE_SCHEMA` = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
+select * from `information_schema`.`PARTITIONS` where `TABLE_NAME` = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME PARTITION_NAME SUBPARTITION_NAME PARTITION_ORDINAL_POSITION SUBPARTITION_ORDINAL_POSITION PARTITION_METHOD SUBPARTITION_METHOD PARTITION_EXPRESSION SUBPARTITION_EXPRESSION PARTITION_DESCRIPTION TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE CREATE_TIME UPDATE_TIME CHECK_TIME CHECKSUM PARTITION_COMMENT NODEGROUP TABLESPACE_NAME
+select * from `information_schema`.`REFERENTIAL_CONSTRAINTS` where `CONSTRAINT_SCHEMA` = NULL;
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME UNIQUE_CONSTRAINT_CATALOG UNIQUE_CONSTRAINT_SCHEMA UNIQUE_CONSTRAINT_NAME MATCH_OPTION UPDATE_RULE DELETE_RULE TABLE_NAME REFERENCED_TABLE_NAME
+select * from `information_schema`.`REFERENTIAL_CONSTRAINTS` where `TABLE_NAME` = NULL;
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME UNIQUE_CONSTRAINT_CATALOG UNIQUE_CONSTRAINT_SCHEMA UNIQUE_CONSTRAINT_NAME MATCH_OPTION UPDATE_RULE DELETE_RULE TABLE_NAME REFERENCED_TABLE_NAME
+select * from information_schema.schemata where schema_name = NULL;
+CATALOG_NAME SCHEMA_NAME DEFAULT_CHARACTER_SET_NAME DEFAULT_COLLATION_NAME SQL_PATH
+select * from `information_schema`.`STATISTICS` where `TABLE_SCHEMA` = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME NON_UNIQUE INDEX_SCHEMA INDEX_NAME SEQ_IN_INDEX COLUMN_NAME COLLATION CARDINALITY SUB_PART PACKED NULLABLE INDEX_TYPE COMMENT INDEX_COMMENT
+select * from `information_schema`.`STATISTICS` where `TABLE_NAME` = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME NON_UNIQUE INDEX_SCHEMA INDEX_NAME SEQ_IN_INDEX COLUMN_NAME COLLATION CARDINALITY SUB_PART PACKED NULLABLE INDEX_TYPE COMMENT INDEX_COMMENT
+select * from information_schema.tables where table_schema = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME TABLE_TYPE ENGINE VERSION ROW_FORMAT TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE AUTO_INCREMENT CREATE_TIME UPDATE_TIME CHECK_TIME TABLE_COLLATION CHECKSUM CREATE_OPTIONS TABLE_COMMENT MAX_INDEX_LENGTH TEMPORARY
+select * from information_schema.tables where table_catalog = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME TABLE_TYPE ENGINE VERSION ROW_FORMAT TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE AUTO_INCREMENT CREATE_TIME UPDATE_TIME CHECK_TIME TABLE_COLLATION CHECKSUM CREATE_OPTIONS TABLE_COMMENT MAX_INDEX_LENGTH TEMPORARY
+select * from information_schema.tables where table_name = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME TABLE_TYPE ENGINE VERSION ROW_FORMAT TABLE_ROWS AVG_ROW_LENGTH DATA_LENGTH MAX_DATA_LENGTH INDEX_LENGTH DATA_FREE AUTO_INCREMENT CREATE_TIME UPDATE_TIME CHECK_TIME TABLE_COLLATION CHECKSUM CREATE_OPTIONS TABLE_COMMENT MAX_INDEX_LENGTH TEMPORARY
+select * from `information_schema`.`TABLE_CONSTRAINTS` where `TABLE_SCHEMA` = NULL;
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_SCHEMA TABLE_NAME CONSTRAINT_TYPE
+select * from `information_schema`.`TABLE_CONSTRAINTS` where `TABLE_NAME` = NULL;
+CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_SCHEMA TABLE_NAME CONSTRAINT_TYPE
+select * from `information_schema`.`TRIGGERS` where `EVENT_OBJECT_SCHEMA` = NULL;
+TRIGGER_CATALOG TRIGGER_SCHEMA TRIGGER_NAME EVENT_MANIPULATION EVENT_OBJECT_CATALOG EVENT_OBJECT_SCHEMA EVENT_OBJECT_TABLE ACTION_ORDER ACTION_CONDITION ACTION_STATEMENT ACTION_ORIENTATION ACTION_TIMING ACTION_REFERENCE_OLD_TABLE ACTION_REFERENCE_NEW_TABLE ACTION_REFERENCE_OLD_ROW ACTION_REFERENCE_NEW_ROW CREATED SQL_MODE DEFINER CHARACTER_SET_CLIENT COLLATION_CONNECTION DATABASE_COLLATION
+select * from `information_schema`.`TRIGGERS` where `EVENT_OBJECT_TABLE` = NULL;
+TRIGGER_CATALOG TRIGGER_SCHEMA TRIGGER_NAME EVENT_MANIPULATION EVENT_OBJECT_CATALOG EVENT_OBJECT_SCHEMA EVENT_OBJECT_TABLE ACTION_ORDER ACTION_CONDITION ACTION_STATEMENT ACTION_ORIENTATION ACTION_TIMING ACTION_REFERENCE_OLD_TABLE ACTION_REFERENCE_NEW_TABLE ACTION_REFERENCE_OLD_ROW ACTION_REFERENCE_NEW_ROW CREATED SQL_MODE DEFINER CHARACTER_SET_CLIENT COLLATION_CONNECTION DATABASE_COLLATION
+select * from `information_schema`.`VIEWS` where `TABLE_SCHEMA` = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME VIEW_DEFINITION CHECK_OPTION IS_UPDATABLE DEFINER SECURITY_TYPE CHARACTER_SET_CLIENT COLLATION_CONNECTION ALGORITHM
+select * from `information_schema`.`VIEWS` where `TABLE_NAME` = NULL;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME VIEW_DEFINITION CHECK_OPTION IS_UPDATABLE DEFINER SECURITY_TYPE CHARACTER_SET_CLIENT COLLATION_CONNECTION ALGORITHM
+explain extended select 1 from information_schema.tables;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 SIMPLE tables ALL NULL NULL NULL NULL NULL NULL Skip_open_table; Scanned all databases
+Warnings:
+Note 1003 select 1 AS `1` from `information_schema`.`tables`
+use information_schema;
+show events;
+Db Name Definer Time zone Type Execute at Interval value Interval field Starts Ends Status Originator character_set_client collation_connection Database Collation
+show events from information_schema;
+Db Name Definer Time zone Type Execute at Interval value Interval field Starts Ends Status Originator character_set_client collation_connection Database Collation
+show events where Db= 'information_schema';
+Db Name Definer Time zone Type Execute at Interval value Interval field Starts Ends Status Originator character_set_client collation_connection Database Collation
+use test;
+#
+# Bug#34166 Server crash in SHOW OPEN TABLES and prelocking
+#
+drop table if exists t1;
+drop function if exists f1;
+create table t1 (a int);
+create function f1() returns int
+begin
+insert into t1 (a) values (1);
+return 0;
+end|
+show open tables where f1()=0;
+show open tables where f1()=0;
+drop table t1;
+drop function f1;
+connect conn1, localhost, root,,;
+connection conn1;
+select * from information_schema.tables where 1=sleep(100000);
+connection default;
+connection conn1;
+Got one of the listed errors
+connection default;
+disconnect conn1;
+connect conn1, localhost, root,,;
+connection conn1;
+select * from information_schema.columns where 1=sleep(100000);
+connection default;
+connection conn1;
+Got one of the listed errors
+connection default;
+disconnect conn1;
+explain select count(*) from information_schema.tables;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE tables ALL NULL NULL NULL NULL NULL Skip_open_table; Scanned all databases
+explain select count(*) from information_schema.columns;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE columns ALL NULL NULL NULL NULL NULL Open_frm_only; Scanned all databases
+explain select count(*) from information_schema.views;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE views ALL NULL NULL NULL NULL NULL Open_frm_only; Scanned all databases
+set global init_connect="drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;\
+drop table if exists t1;drop table if exists t1;";
+select * from information_schema.global_variables where variable_name='init_connect';
+VARIABLE_NAME VARIABLE_VALUE
+INIT_CONNECT drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+select * from information_schema.global_variables where variable_name like 'init%' order by variable_name;
+VARIABLE_NAME VARIABLE_VALUE
+INIT_CONNECT drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+drop table if exists t1;drop table if exists t1;
+INIT_FILE
+INIT_SLAVE
+set global init_connect="";
+create table t0 select * from information_schema.global_status where VARIABLE_NAME='COM_SELECT';
+SELECT 1;
+1
+1
+select a.VARIABLE_VALUE - b.VARIABLE_VALUE from t0 b, information_schema.global_status a
+where a.VARIABLE_NAME = b.VARIABLE_NAME;
+a.VARIABLE_VALUE - b.VARIABLE_VALUE
+2
+drop table t0;
+CREATE TABLE t1(a INT) KEY_BLOCK_SIZE=1;
+SELECT CREATE_OPTIONS FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1';
+CREATE_OPTIONS
+key_block_size=1
+DROP TABLE t1;
+SET TIMESTAMP=@@TIMESTAMP + 10000000;
+SELECT 'NOT_OK' AS TEST_RESULT FROM INFORMATION_SCHEMA.PROCESSLIST WHERE time < 0;
+TEST_RESULT
+SET TIMESTAMP=DEFAULT;
+#
+# Bug #50276: Security flaw in INFORMATION_SCHEMA.TABLES
+#
+CREATE DATABASE db1;
+USE db1;
+CREATE TABLE t1 (id INT);
+CREATE USER nonpriv;
+USE test;
+connect nonpriv_con, localhost, nonpriv,,;
+connection nonpriv_con;
+# connected as nonpriv
+# Should return 0
+SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1';
+COUNT(*)
+0
+USE INFORMATION_SCHEMA;
+# Should return 0
+SELECT COUNT(*) FROM TABLES WHERE TABLE_NAME='t1';
+COUNT(*)
+0
+connection default;
+# connected as root
+disconnect nonpriv_con;
+DROP USER nonpriv;
+DROP TABLE db1.t1;
+DROP DATABASE db1;
+
+Bug#54422 query with = 'variables'
+
+CREATE TABLE variables(f1 INT);
+SELECT COLUMN_DEFAULT, TABLE_NAME
+FROM INFORMATION_SCHEMA.COLUMNS
+WHERE INFORMATION_SCHEMA.COLUMNS.TABLE_NAME = 'variables';
+COLUMN_DEFAULT TABLE_NAME
+NULL variables
+DROP TABLE variables;
+#
+# Bug #53814: NUMERIC_PRECISION for unsigned bigint field is 19,
+# should be 20
+#
+CREATE TABLE ubig (a BIGINT, b BIGINT UNSIGNED);
+SELECT TABLE_NAME, COLUMN_NAME, NUMERIC_PRECISION
+FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='ubig';
+TABLE_NAME COLUMN_NAME NUMERIC_PRECISION
+ubig a 19
+ubig b 20
+INSERT INTO ubig VALUES (0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFF);
+Warnings:
+Warning 1264 Out of range value for column 'a' at row 1
+SELECT length(CAST(b AS CHAR)) FROM ubig;
+length(CAST(b AS CHAR))
+20
+DROP TABLE ubig;
+select 1 from information_schema.tables where table_schema=repeat('a', 2000);
+1
+grant usage on *.* to mysqltest_1@localhost;
+connect con1, localhost, mysqltest_1,,;
+connection con1;
+select 1 from information_schema.tables where table_schema=repeat('a', 2000);
+1
+connection default;
+disconnect con1;
+drop user mysqltest_1@localhost;
+End of 5.1 tests.
+#
+# Additional test for WL#3726 "DDL locking for all metadata objects"
+# To avoid possible deadlocks process of filling of I_S tables should
+# use high-priority metadata lock requests when opening tables.
+# Below we just test that we really use high-priority lock request
+# since reproducing a deadlock will require much more complex test.
+#
+drop tables if exists t1, t2, t3;
+create table t1 (i int);
+create table t2 (j int primary key auto_increment);
+connect con3726_1,localhost,root,,test;
+connection con3726_1;
+lock table t2 read;
+connect con3726_2,localhost,root,,test;
+connection con3726_2;
+# RENAME below will be blocked by 'lock table t2 read' above but
+# will add two pending requests for exclusive metadata locks.
+rename table t2 to t3;
+connection default;
+# These statements should not be blocked by pending lock requests
+select table_name, column_name, data_type from information_schema.columns
+where table_schema = 'test' and table_name in ('t1', 't2') order by table_name, column_name;
+table_name column_name data_type
+t1 i int
+t2 j int
+select table_name, auto_increment from information_schema.tables
+where table_schema = 'test' and table_name in ('t1', 't2') order by table_name;
+table_name auto_increment
+t1 NULL
+t2 1
+connection con3726_1;
+unlock tables;
+connection con3726_2;
+connection default;
+disconnect con3726_1;
+disconnect con3726_2;
+drop tables t1, t3;
+EXPLAIN SELECT * FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE KEY_COLUMN_USAGE ALL NULL NULL NULL NULL NULL Open_full_table; Scanned all databases
+EXPLAIN SELECT * FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_NAME='t1';
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE PARTITIONS ALL NULL TABLE_NAME NULL NULL NULL Using where; Open_full_table; Scanned 1 database
+EXPLAIN SELECT * FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS
+WHERE CONSTRAINT_SCHEMA='test';
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE REFERENTIAL_CONSTRAINTS ALL NULL CONSTRAINT_SCHEMA NULL NULL NULL Using where; Open_full_table; Scanned 1 database
+EXPLAIN SELECT * FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
+WHERE TABLE_NAME='t1' and TABLE_SCHEMA='test';
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE TABLE_CONSTRAINTS ALL NULL TABLE_SCHEMA,TABLE_NAME NULL NULL NULL Using where; Open_full_table; Scanned 0 databases
+EXPLAIN SELECT * FROM INFORMATION_SCHEMA.TRIGGERS
+WHERE EVENT_OBJECT_SCHEMA='test';
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE TRIGGERS ALL NULL EVENT_OBJECT_SCHEMA NULL NULL NULL Using where; Open_frm_only; Scanned 1 database
+create table information_schema.t1 (f1 INT);
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+drop table information_schema.t1;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+drop temporary table if exists information_schema.t1;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+create temporary table information_schema.t1 (f1 INT);
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+drop view information_schema.v1;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+create view information_schema.v1;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+create trigger mysql.trg1 after insert on information_schema.t1 for each row set @a=1;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+create table t1 select * from information_schema.t1;
+ERROR 42S02: Unknown table 't1' in information_schema
+CREATE TABLE t1(f1 char(100));
+REPAIR TABLE t1, information_schema.tables;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+CHECKSUM TABLE t1, information_schema.tables;
+Table Checksum
+test.t1 0
+information_schema.tables 0
+ANALYZE TABLE t1, information_schema.tables;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+CHECK TABLE t1, information_schema.tables;
+Table Op Msg_type Msg_text
+test.t1 check status OK
+information_schema.tables check note The storage engine for the table doesn't support check
+OPTIMIZE TABLE t1, information_schema.tables;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+RENAME TABLE v1 to v2, information_schema.tables to t2;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+DROP TABLE t1, information_schema.tables;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+LOCK TABLES t1 READ, information_schema.tables READ;
+ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+DROP TABLE t1;
+SELECT *
+FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
+LEFT JOIN INFORMATION_SCHEMA.COLUMNS
+USING (TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME)
+WHERE COLUMNS.TABLE_SCHEMA = 'test'
+AND COLUMNS.TABLE_NAME = 't1';
+TABLE_SCHEMA TABLE_NAME COLUMN_NAME CONSTRAINT_CATALOG CONSTRAINT_SCHEMA CONSTRAINT_NAME TABLE_CATALOG ORDINAL_POSITION POSITION_IN_UNIQUE_CONSTRAINT REFERENCED_TABLE_SCHEMA REFERENCED_TABLE_NAME REFERENCED_COLUMN_NAME TABLE_CATALOG ORDINAL_POSITION COLUMN_DEFAULT IS_NULLABLE DATA_TYPE CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH NUMERIC_PRECISION NUMERIC_SCALE DATETIME_PRECISION CHARACTER_SET_NAME COLLATION_NAME COLUMN_TYPE COLUMN_KEY EXTRA PRIVILEGES COLUMN_COMMENT IS_GENERATED GENERATION_EXPRESSION
+#
+# A test case for Bug#56540 "Exception (crash) in sql_show.cc
+# during rqg_info_schema test on Windows"
+# Ensure that we never access memory of a closed table,
+# in particular, never access table->field[] array.
+# Before the fix, the below test case, produced
+# valgrind errors.
+#
+drop table if exists t1;
+drop view if exists v1;
+create table t1 (a int, b int);
+create view v1 as select t1.a, t1.b from t1;
+alter table t1 change b c int;
+lock table t1 read;
+connect con1, localhost, root,,;
+connection con1;
+flush tables;
+connection default;
+select * from information_schema.views;
+TABLE_CATALOG def
+TABLE_SCHEMA test
+TABLE_NAME v1
+VIEW_DEFINITION select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`
+CHECK_OPTION NONE
+IS_UPDATABLE
+DEFINER root@localhost
+SECURITY_TYPE DEFINER
+CHARACTER_SET_CLIENT latin1
+COLLATION_CONNECTION latin1_swedish_ci
+ALGORITHM UNDEFINED
+Warnings:
+Level Warning
+Code 1356
+Message View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+unlock tables;
+#
+# Cleanup.
+#
+connection con1;
+# Reaping 'flush tables'
+disconnect con1;
+connection default;
+drop table t1;
+drop view v1;
+#
+# Test for bug #12828477 - "MDL SUBSYSTEM CREATES BIG OVERHEAD FOR
+# CERTAIN QUERIES TO INFORMATION_SCHEMA".
+#
+# Check that metadata locks which are acquired during the process
+# of opening tables/.FRMs/.TRG files while filling I_S table are
+# not kept to the end of statement. Keeping the locks has caused
+# performance problems in cases when big number of tables (.FRMs
+# or .TRG files) were scanned as cost of new lock acquisition has
+# increased linearly.
+drop database if exists mysqltest;
+create database mysqltest;
+use mysqltest;
+create table t0 (i int);
+create table t1 (j int);
+create table t2 (k int);
+#
+# Test that we don't keep locks in case when we to fill
+# I_S table we perform full-blown table open.
+#
+# Acquire lock on 't2' so upcoming RENAME is
+# blocked.
+lock tables t2 read;
+connect con12828477_1, localhost, root,,mysqltest;
+# The below RENAME should wait on 't2' while
+# keeping X lock on 't1'.
+rename table t1 to t3, t2 to t1, t3 to t2;
+connect con12828477_2, localhost, root,,mysqltest;
+# Wait while the above RENAME is blocked.
+# Issue query to I_S which will open 't0' and get
+# blocked on 't1' because of RENAME.
+select table_name, auto_increment from information_schema.tables where table_schema='mysqltest' and table_name='t0' union select table_name, auto_increment from information_schema.tables where table_schema='mysqltest' and table_name<>'t0' order by table_name;
+connect con12828477_3, localhost, root,,mysqltest;
+# Wait while the above SELECT is blocked.
+#
+# Check that it holds no lock on 't0' so it can be renamed.
+rename table t0 to t4;
+connection default;
+#
+# Unblock the first RENAME.
+unlock tables;
+connection con12828477_1;
+# Reap the first RENAME
+connection con12828477_2;
+# Reap SELECT to I_S.
+table_name auto_increment
+t0 NULL
+t1 NULL
+t2 NULL
+connection default;
+#
+# Now test that we don't keep locks in case when we to fill
+# I_S table we read .FRM or .TRG file only (this was the case
+# for which problem existed).
+#
+rename table t4 to t0;
+# Acquire lock on 't2' so upcoming RENAME is
+# blocked.
+lock tables t2 read;
+connection con12828477_1;
+# The below RENAME should wait on 't2' while
+# keeping X lock on 't1'.
+rename table t1 to t3, t2 to t1, t3 to t2;
+connection con12828477_2;
+# Wait while the above RENAME is blocked.
+# Issue query to I_S which will open 't0' and get
+# blocked on 't1' because of RENAME.
+select event_object_table, trigger_name from information_schema.triggers where event_object_schema='mysqltest';
+connection con12828477_3;
+# Wait while the above SELECT is blocked.
+#
+# Check that it holds no lock on 't0' so it can be renamed.
+rename table t0 to t4;
+connection default;
+#
+# Unblock the first RENAME.
+unlock tables;
+connection con12828477_1;
+# Reap the first RENAME
+connection con12828477_2;
+# Reap SELECT to I_S.
+event_object_table trigger_name
+connection default;
+disconnect con12828477_1;
+disconnect con12828477_2;
+disconnect con12828477_3;
+#
+# MDEV-3818: Query against view over IS tables worse than equivalent query without view
+#
+create view v1 as select table_schema, table_name, column_name from information_schema.columns;
+explain extended
+select column_name from v1
+where (table_schema = "osm") and (table_name = "test");
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 SIMPLE columns ALL NULL TABLE_SCHEMA,TABLE_NAME NULL NULL NULL NULL Using where; Open_frm_only; Scanned 0 databases
+Warnings:
+Note 1003 select `information_schema`.`columns`.`COLUMN_NAME` AS `column_name` from `information_schema`.`columns` where `information_schema`.`columns`.`TABLE_SCHEMA` = 'osm' and `information_schema`.`columns`.`TABLE_NAME` = 'test'
+explain extended
+select information_schema.columns.column_name as column_name
+from information_schema.columns
+where (information_schema.columns.table_schema = 'osm') and (information_schema.columns.table_name = 'test');
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 SIMPLE columns ALL NULL TABLE_SCHEMA,TABLE_NAME NULL NULL NULL NULL Using where; Open_frm_only; Scanned 0 databases
+Warnings:
+Note 1003 select `information_schema`.`columns`.`COLUMN_NAME` AS `column_name` from `information_schema`.`columns` where `information_schema`.`columns`.`TABLE_SCHEMA` = 'osm' and `information_schema`.`columns`.`TABLE_NAME` = 'test'
+drop view v1;
+#
+# Clean-up.
+drop database mysqltest;
+#
+# Test for bug #16869534 - "QUERYING SUBSET OF COLUMNS DOESN'T USE TABLE
+# CACHE; OPENED_TABLES INCREASES"
+#
+SELECT * FROM INFORMATION_SCHEMA.TABLES;
+SELECT VARIABLE_VALUE INTO @val1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE
+VARIABLE_NAME LIKE 'Opened_tables';
+SELECT ENGINE FROM INFORMATION_SCHEMA.TABLES;
+# The below SELECT query should give same output as above SELECT query.
+SELECT VARIABLE_VALUE INTO @val2 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE
+VARIABLE_NAME LIKE 'Opened_tables';
+# The below select should return '1'
+SELECT @val1 = @val2;
+@val1 = @val2
+1
+#
+# End of 5.5 tests
+#
+#
+# MDEV-5723: mysqldump -uroot unusable for multi-database operations, checks all databases
+#
+drop database if exists db1;
+connect con1,localhost,root,,;
+connection con1;
+create database db1;
+use db1;
+create table t1 (a int);
+create table t2 (a int);
+create table t3 (a int);
+create database mysqltest;
+use mysqltest;
+create table t1 (a int);
+create table t2 (a int);
+create table t3 (a int);
+flush tables;
+flush status;
+SELECT
+LOGFILE_GROUP_NAME, FILE_NAME, TOTAL_EXTENTS, INITIAL_SIZE, ENGINE, EXTRA
+FROM
+INFORMATION_SCHEMA.FILES
+WHERE
+FILE_TYPE = 'UNDO LOG' AND FILE_NAME IS NOT NULL AND
+LOGFILE_GROUP_NAME IN (SELECT DISTINCT LOGFILE_GROUP_NAME
+FROM INFORMATION_SCHEMA.FILES
+WHERE
+FILE_TYPE = 'DATAFILE' AND
+TABLESPACE_NAME IN (SELECT DISTINCT TABLESPACE_NAME
+FROM INFORMATION_SCHEMA.PARTITIONS
+WHERE TABLE_SCHEMA IN ('db1')
+)
+)
+GROUP BY
+LOGFILE_GROUP_NAME, FILE_NAME, ENGINE
+ORDER BY
+LOGFILE_GROUP_NAME;
+LOGFILE_GROUP_NAME FILE_NAME TOTAL_EXTENTS INITIAL_SIZE ENGINE EXTRA
+# This must have Opened_tables=3, not 6.
+show status like 'Opened_tables';
+Variable_name Value
+Opened_tables 3
+drop database mysqltest;
+drop database db1;
+connection default;
+disconnect con1;
+set global sql_mode=default;
+USE test;
+#
+# End of 10.0 tests
+#
+#
+# Start of 10.1 tests
+#
+#
+# MDEV-13242 Wrong results for queries with row constructors and information_schema
+#
+CREATE TABLE tt1(c1 INT);
+CREATE TABLE tt2(c2 INT);
+SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name, column_name) IN (('tt1', 'c1'));
+count(*)
+1
+SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name, column_name) IN (('tt2', 'c2'));
+count(*)
+1
+SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name, column_name) IN (('tt1','c1'),('tt2', 'c2'));
+count(*)
+2
+SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name, column_name) IN (SELECT 'tt1','c1' FROM dual UNION SELECT 'tt2', 'c2' FROM dual);
+count(*)
+2
+SELECT count(*) FROM information_schema.columns WHERE table_schema='test' AND (table_name='tt1' AND column_name='c1') OR (table_name='tt2' AND column_name='c2');
+count(*)
+2
+SELECT column_name FROM information_schema.columns WHERE (table_name, column_name) IN (('tt1','c1'),('tt2', 'c2')) ORDER BY column_name;
+column_name
+c1
+c2
+DROP TABLE tt1, tt2;
+#
+# MDEV-13242 Wrong results for queries with row constructors and information_schema
+#
+SELECT SCHEMA_NAME from information_schema.schemata where schema_name='aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
+SCHEMA_NAME
+SELECT SCHEMA_NAME from information_schema.schemata where schema_name=REPEAT('a',193);
+SCHEMA_NAME
+#
+# End of 10.1 tests
+#
+#
+# MDEV-14836: Assertion `m_status == DA_ERROR' failed in
+# Diagnostics_area::sql_errno upon query from I_S with LIMIT ROWS EXAMINED
+#
+SELECT * FROM INFORMATION_SCHEMA.`COLUMNS` LIMIT ROWS EXAMINED 10;
+TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME ORDINAL_POSITION COLUMN_DEFAULT IS_NULLABLE DATA_TYPE CHARACTER_MAXIMUM_LENGTH CHARACTER_OCTET_LENGTH NUMERIC_PRECISION NUMERIC_SCALE DATETIME_PRECISION CHARACTER_SET_NAME COLLATION_NAME COLUMN_TYPE COLUMN_KEY EXTRA PRIVILEGES COLUMN_COMMENT IS_GENERATED GENERATION_EXPRESSION
+Warnings:
+Warning 1931 Query execution was interrupted. The query examined at least ### rows, which exceeds LIMIT ROWS EXAMINED (10). The query result may be incomplete
+#
+# MDEV-24179: AAssertion `m_status == DA_ERROR || m_status == DA_OK ||
+# m_status == DA_OK_BULK' failed in Diagnostics_area::message()
+#
+call mtr.add_suppression("Sort aborted.*");
+DROP DATABASE test;
+CREATE DATABASE test;
+USE test;
+CREATE VIEW v AS SELECT table_schema AS object_schema, table_name AS object_name, table_type AS object_type FROM information_schema.tables ORDER BY object_schema;
+SELECT * FROM v LIMIT ROWS EXAMINED 9;
+ERROR HY000: Sort aborted:
+DROP VIEW v;
+#
+# End of 10.2 Test
+#
+#
+# MDEV-21201:No records produced in information_schema query,
+# depending on projection
+#
+create table t (i int, constraint a check (i > 0));
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE
+from information_schema.TABLE_CONSTRAINTS tc
+join information_schema.CHECK_CONSTRAINTS cc
+using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+TABLE_SCHEMA TABLE_NAME CONSTRAINT_NAME CHECK_CLAUSE
+test t a `i` > 0
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE
+from information_schema.CHECK_CONSTRAINTS cc
+join information_schema.TABLE_CONSTRAINTS tc
+using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+TABLE_SCHEMA TABLE_NAME CONSTRAINT_NAME CHECK_CLAUSE
+test t a `i` > 0
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE
+from information_schema.TABLE_CONSTRAINTS tc
+NATURAL join information_schema.CHECK_CONSTRAINTS cc
+;
+TABLE_SCHEMA TABLE_NAME CONSTRAINT_NAME CHECK_CLAUSE
+test t a `i` > 0
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE
+from information_schema.CHECK_CONSTRAINTS cc
+NATURAL join information_schema.TABLE_CONSTRAINTS tc
+;
+TABLE_SCHEMA TABLE_NAME CONSTRAINT_NAME CHECK_CLAUSE
+test t a `i` > 0
+select
+tc.TABLE_SCHEMA,
+tc.TABLE_NAME,
+cc.CONSTRAINT_NAME,
+cc.CHECK_CLAUSE,
+tc.CONSTRAINT_CATALOG,
+tc.CONSTRAINT_SCHEMA
+from information_schema.TABLE_CONSTRAINTS tc
+join information_schema.CHECK_CONSTRAINTS cc
+using (CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, TABLE_NAME, CONSTRAINT_NAME)
+;
+TABLE_SCHEMA TABLE_NAME CONSTRAINT_NAME CHECK_CLAUSE CONSTRAINT_CATALOG CONSTRAINT_SCHEMA
+test t a `i` > 0 def test
+drop table t;
+#
+# MDEV-24230 subquery on information_schema fails with error message
+#
+create table t1 (n int);
+create table t2 (n int);
+insert into t1 set n = (select table_rows from information_schema.tables where table_name='t2');
+drop table t1, t2;
+#
+# MDEV-24593 Signal 11 when group by primary key of table joined to information_schema.columns
+#
+create table t1 (f varchar(64) primary key);
+select f from information_schema.columns i
+inner join t1 on f=i.column_name
+group by f;
+f
+drop table t1;
+#
+# MDEV-24929 Server crash in thr_multi_unlock or in
+# get_schema_tables_result upon select from I_S with joins
+#
+CREATE TABLE t1 (a TIMESTAMP, KEY (a));
+INSERT INTO t1 VALUES ('2012-12-12'),('2021-11-11');
+SELECT count(*) FROM t1 AS t1a LEFT JOIN (t1 AS t1b JOIN INFORMATION_SCHEMA.ROUTINES) ON (t1b.a IS NULL);
+count(*)
+2
+SELECT count(*) FROM t1 AS t1a LEFT JOIN (t1 AS t1b JOIN INFORMATION_SCHEMA.PROFILING) ON (t1b.a IS NULL);
+count(*)
+2
+DROP TABLE t1;
+#
+# MDEV-24868 Server crashes in optimize_schema_tables_memory_usage after select from information_schema.innodb_sys_columns
+#
+create table t1 ( name varchar(64) character set utf8, len int);
+select * from t1 where (name, len) in (select name, len from information_schema.innodb_sys_columns having len = 8);
+name len
+drop table t1;
+#
+# End of 10.3 tests
+#
diff --cc mysql-test/main/information_schema_all_engines.result
index 2916858b5a6,00000000000..41d6ab3b2f4
mode 100644,000000..100644
--- a/mysql-test/main/information_schema_all_engines.result
+++ b/mysql-test/main/information_schema_all_engines.result
@@@ -1,463 -1,0 +1,473 @@@
+use INFORMATION_SCHEMA;
+show tables;
+Tables_in_information_schema
+ALL_PLUGINS
+APPLICABLE_ROLES
+CHARACTER_SETS
+CHECK_CONSTRAINTS
+CLIENT_STATISTICS
+COLLATIONS
+COLLATION_CHARACTER_SET_APPLICABILITY
+COLUMNS
+COLUMN_PRIVILEGES
+ENABLED_ROLES
+ENGINES
+EVENTS
+FILES
+GEOMETRY_COLUMNS
+GLOBAL_STATUS
+GLOBAL_VARIABLES
+INDEX_STATISTICS
+INNODB_BUFFER_PAGE
+INNODB_BUFFER_PAGE_LRU
+INNODB_BUFFER_POOL_STATS
+INNODB_CMP
+INNODB_CMPMEM
+INNODB_CMPMEM_RESET
+INNODB_CMP_PER_INDEX
+INNODB_CMP_RESET
+INNODB_LOCKS
+INNODB_LOCK_WAITS
+INNODB_METRICS
+INNODB_MUTEXES
+INNODB_SYS_COLUMNS
+INNODB_SYS_FIELDS
+INNODB_SYS_FOREIGN
+INNODB_SYS_FOREIGN_COLS
+INNODB_SYS_INDEXES
+INNODB_SYS_TABLES
+INNODB_SYS_TABLESTATS
+INNODB_SYS_VIRTUAL
+INNODB_TABLESPACES_ENCRYPTION
+INNODB_TABLESPACES_SCRUBBING
+INNODB_TRX
++KEYWORDS
+KEY_CACHES
+KEY_COLUMN_USAGE
+PARAMETERS
+PARTITIONS
+PLUGINS
+PROCESSLIST
+PROFILING
+REFERENTIAL_CONSTRAINTS
+ROUTINES
+SCHEMATA
+SCHEMA_PRIVILEGES
+SESSION_STATUS
+SESSION_VARIABLES
+SPATIAL_REF_SYS
++SQL_FUNCTIONS
+STATISTICS
+SYSTEM_VARIABLES
+TABLES
+TABLESPACES
+TABLE_CONSTRAINTS
+TABLE_PRIVILEGES
+TABLE_STATISTICS
+TRIGGERS
+USER_PRIVILEGES
+USER_STATISTICS
+VIEWS
+SELECT t.table_name, c1.column_name
+FROM information_schema.tables t
+INNER JOIN
+information_schema.columns c1
+ON t.table_schema = c1.table_schema AND
+t.table_name = c1.table_name
+WHERE t.table_schema = 'information_schema' AND
+c1.ordinal_position =
+( SELECT COALESCE(MIN(c2.ordinal_position),1)
+FROM information_schema.columns c2
+WHERE c2.table_schema = t.table_schema AND
+c2.table_name = t.table_name AND
+c2.column_name LIKE '%SCHEMA%'
+ ) order by t.table_name;
+table_name column_name
+ALL_PLUGINS PLUGIN_NAME
+APPLICABLE_ROLES GRANTEE
+CHARACTER_SETS CHARACTER_SET_NAME
+CHECK_CONSTRAINTS CONSTRAINT_SCHEMA
+CLIENT_STATISTICS CLIENT
+COLLATIONS COLLATION_NAME
+COLLATION_CHARACTER_SET_APPLICABILITY COLLATION_NAME
+COLUMNS TABLE_SCHEMA
+COLUMN_PRIVILEGES TABLE_SCHEMA
+ENABLED_ROLES ROLE_NAME
+ENGINES ENGINE
+EVENTS EVENT_SCHEMA
+FILES TABLE_SCHEMA
+GEOMETRY_COLUMNS F_TABLE_SCHEMA
+GLOBAL_STATUS VARIABLE_NAME
+GLOBAL_VARIABLES VARIABLE_NAME
+INDEX_STATISTICS TABLE_SCHEMA
+INNODB_BUFFER_PAGE POOL_ID
+INNODB_BUFFER_PAGE_LRU POOL_ID
+INNODB_BUFFER_POOL_STATS POOL_ID
+INNODB_CMP page_size
+INNODB_CMPMEM page_size
+INNODB_CMPMEM_RESET page_size
+INNODB_CMP_PER_INDEX database_name
+INNODB_CMP_RESET page_size
+INNODB_LOCKS lock_id
+INNODB_LOCK_WAITS requesting_trx_id
+INNODB_METRICS NAME
+INNODB_MUTEXES NAME
+INNODB_SYS_COLUMNS TABLE_ID
+INNODB_SYS_FIELDS INDEX_ID
+INNODB_SYS_FOREIGN ID
+INNODB_SYS_FOREIGN_COLS ID
+INNODB_SYS_INDEXES INDEX_ID
+INNODB_SYS_TABLES TABLE_ID
+INNODB_SYS_TABLESTATS TABLE_ID
+INNODB_SYS_VIRTUAL TABLE_ID
+INNODB_TABLESPACES_ENCRYPTION SPACE
+INNODB_TABLESPACES_SCRUBBING SPACE
+INNODB_TRX trx_id
++KEYWORDS WORD
+KEY_CACHES KEY_CACHE_NAME
+KEY_COLUMN_USAGE CONSTRAINT_SCHEMA
+PARAMETERS SPECIFIC_SCHEMA
+PARTITIONS TABLE_SCHEMA
+PLUGINS PLUGIN_NAME
+PROCESSLIST ID
+PROFILING QUERY_ID
+REFERENTIAL_CONSTRAINTS CONSTRAINT_SCHEMA
+ROUTINES ROUTINE_SCHEMA
+SCHEMATA SCHEMA_NAME
+SCHEMA_PRIVILEGES TABLE_SCHEMA
+SESSION_STATUS VARIABLE_NAME
+SESSION_VARIABLES VARIABLE_NAME
+SPATIAL_REF_SYS SRID
++SQL_FUNCTIONS FUNCTION
+STATISTICS TABLE_SCHEMA
+SYSTEM_VARIABLES VARIABLE_NAME
+TABLES TABLE_SCHEMA
+TABLESPACES TABLESPACE_NAME
+TABLE_CONSTRAINTS CONSTRAINT_SCHEMA
+TABLE_PRIVILEGES TABLE_SCHEMA
+TABLE_STATISTICS TABLE_SCHEMA
+TRIGGERS TRIGGER_SCHEMA
+USER_PRIVILEGES GRANTEE
+USER_STATISTICS USER
+VIEWS TABLE_SCHEMA
+SELECT t.table_name, c1.column_name
+FROM information_schema.tables t
+INNER JOIN
+information_schema.columns c1
+ON t.table_schema = c1.table_schema AND
+t.table_name = c1.table_name
+WHERE t.table_schema = 'information_schema' AND
+c1.ordinal_position =
+( SELECT COALESCE(MIN(c2.ordinal_position),1)
+FROM information_schema.columns c2
+WHERE c2.table_schema = 'information_schema' AND
+c2.table_name = t.table_name AND
+c2.column_name LIKE '%SCHEMA%'
+ ) order by t.table_name;
+table_name column_name
+ALL_PLUGINS PLUGIN_NAME
+APPLICABLE_ROLES GRANTEE
+CHARACTER_SETS CHARACTER_SET_NAME
+CHECK_CONSTRAINTS CONSTRAINT_SCHEMA
+CLIENT_STATISTICS CLIENT
+COLLATIONS COLLATION_NAME
+COLLATION_CHARACTER_SET_APPLICABILITY COLLATION_NAME
+COLUMNS TABLE_SCHEMA
+COLUMN_PRIVILEGES TABLE_SCHEMA
+ENABLED_ROLES ROLE_NAME
+ENGINES ENGINE
+EVENTS EVENT_SCHEMA
+FILES TABLE_SCHEMA
+GEOMETRY_COLUMNS F_TABLE_SCHEMA
+GLOBAL_STATUS VARIABLE_NAME
+GLOBAL_VARIABLES VARIABLE_NAME
+INDEX_STATISTICS TABLE_SCHEMA
+INNODB_BUFFER_PAGE POOL_ID
+INNODB_BUFFER_PAGE_LRU POOL_ID
+INNODB_BUFFER_POOL_STATS POOL_ID
+INNODB_CMP page_size
+INNODB_CMPMEM page_size
+INNODB_CMPMEM_RESET page_size
+INNODB_CMP_PER_INDEX database_name
+INNODB_CMP_RESET page_size
+INNODB_LOCKS lock_id
+INNODB_LOCK_WAITS requesting_trx_id
+INNODB_METRICS NAME
+INNODB_MUTEXES NAME
+INNODB_SYS_COLUMNS TABLE_ID
+INNODB_SYS_FIELDS INDEX_ID
+INNODB_SYS_FOREIGN ID
+INNODB_SYS_FOREIGN_COLS ID
+INNODB_SYS_INDEXES INDEX_ID
+INNODB_SYS_TABLES TABLE_ID
+INNODB_SYS_TABLESTATS TABLE_ID
+INNODB_SYS_VIRTUAL TABLE_ID
+INNODB_TABLESPACES_ENCRYPTION SPACE
+INNODB_TABLESPACES_SCRUBBING SPACE
+INNODB_TRX trx_id
++KEYWORDS WORD
+KEY_CACHES KEY_CACHE_NAME
+KEY_COLUMN_USAGE CONSTRAINT_SCHEMA
+PARAMETERS SPECIFIC_SCHEMA
+PARTITIONS TABLE_SCHEMA
+PLUGINS PLUGIN_NAME
+PROCESSLIST ID
+PROFILING QUERY_ID
+REFERENTIAL_CONSTRAINTS CONSTRAINT_SCHEMA
+ROUTINES ROUTINE_SCHEMA
+SCHEMATA SCHEMA_NAME
+SCHEMA_PRIVILEGES TABLE_SCHEMA
+SESSION_STATUS VARIABLE_NAME
+SESSION_VARIABLES VARIABLE_NAME
+SPATIAL_REF_SYS SRID
++SQL_FUNCTIONS FUNCTION
+STATISTICS TABLE_SCHEMA
+SYSTEM_VARIABLES VARIABLE_NAME
+TABLES TABLE_SCHEMA
+TABLESPACES TABLESPACE_NAME
+TABLE_CONSTRAINTS CONSTRAINT_SCHEMA
+TABLE_PRIVILEGES TABLE_SCHEMA
+TABLE_STATISTICS TABLE_SCHEMA
+TRIGGERS TRIGGER_SCHEMA
+USER_PRIVILEGES GRANTEE
+USER_STATISTICS USER
+VIEWS TABLE_SCHEMA
+select 1 as "must be 1" from information_schema.tables where "ACCOUNTS"=
+(select cast(table_name as char) from information_schema.tables
+order by table_name limit 1) limit 1;
+must be 1
+1
+select t.table_name, group_concat(t.table_schema, '.', t.table_name),
+count(*) as num1
+from information_schema.tables t
+inner join information_schema.columns c1
+on t.table_schema = c1.table_schema AND t.table_name = c1.table_name
+where t.table_schema = 'information_schema' and
+c1.ordinal_position =
+(select isnull(c2.column_type) -
+isnull(group_concat(c2.table_schema, '.', c2.table_name)) +
+count(*) as num
+from information_schema.columns c2 where
+c2.table_schema='information_schema' and
+(c2.column_type = 'varchar(7)' or c2.column_type = 'varchar(20)')
+group by c2.column_type order by num limit 1)
+group by t.table_name order by num1, t.table_name;
+table_name group_concat(t.table_schema, '.', t.table_name) num1
+ALL_PLUGINS information_schema.ALL_PLUGINS 1
+APPLICABLE_ROLES information_schema.APPLICABLE_ROLES 1
+CHARACTER_SETS information_schema.CHARACTER_SETS 1
+CHECK_CONSTRAINTS information_schema.CHECK_CONSTRAINTS 1
+CLIENT_STATISTICS information_schema.CLIENT_STATISTICS 1
+COLLATIONS information_schema.COLLATIONS 1
+COLLATION_CHARACTER_SET_APPLICABILITY information_schema.COLLATION_CHARACTER_SET_APPLICABILITY 1
+COLUMNS information_schema.COLUMNS 1
+COLUMN_PRIVILEGES information_schema.COLUMN_PRIVILEGES 1
+ENGINES information_schema.ENGINES 1
+EVENTS information_schema.EVENTS 1
+FILES information_schema.FILES 1
+GEOMETRY_COLUMNS information_schema.GEOMETRY_COLUMNS 1
+GLOBAL_STATUS information_schema.GLOBAL_STATUS 1
+GLOBAL_VARIABLES information_schema.GLOBAL_VARIABLES 1
+INDEX_STATISTICS information_schema.INDEX_STATISTICS 1
+INNODB_BUFFER_PAGE information_schema.INNODB_BUFFER_PAGE 1
+INNODB_BUFFER_PAGE_LRU information_schema.INNODB_BUFFER_PAGE_LRU 1
+INNODB_BUFFER_POOL_STATS information_schema.INNODB_BUFFER_POOL_STATS 1
+INNODB_CMP information_schema.INNODB_CMP 1
+INNODB_CMPMEM information_schema.INNODB_CMPMEM 1
+INNODB_CMPMEM_RESET information_schema.INNODB_CMPMEM_RESET 1
+INNODB_CMP_PER_INDEX information_schema.INNODB_CMP_PER_INDEX 1
+INNODB_CMP_RESET information_schema.INNODB_CMP_RESET 1
+INNODB_LOCKS information_schema.INNODB_LOCKS 1
+INNODB_LOCK_WAITS information_schema.INNODB_LOCK_WAITS 1
+INNODB_METRICS information_schema.INNODB_METRICS 1
+INNODB_MUTEXES information_schema.INNODB_MUTEXES 1
+INNODB_SYS_COLUMNS information_schema.INNODB_SYS_COLUMNS 1
+INNODB_SYS_FIELDS information_schema.INNODB_SYS_FIELDS 1
+INNODB_SYS_FOREIGN information_schema.INNODB_SYS_FOREIGN 1
+INNODB_SYS_FOREIGN_COLS information_schema.INNODB_SYS_FOREIGN_COLS 1
+INNODB_SYS_INDEXES information_schema.INNODB_SYS_INDEXES 1
+INNODB_SYS_TABLES information_schema.INNODB_SYS_TABLES 1
+INNODB_SYS_TABLESTATS information_schema.INNODB_SYS_TABLESTATS 1
+INNODB_SYS_VIRTUAL information_schema.INNODB_SYS_VIRTUAL 1
+INNODB_TABLESPACES_ENCRYPTION information_schema.INNODB_TABLESPACES_ENCRYPTION 1
+INNODB_TABLESPACES_SCRUBBING information_schema.INNODB_TABLESPACES_SCRUBBING 1
+INNODB_TRX information_schema.INNODB_TRX 1
+KEY_CACHES information_schema.KEY_CACHES 1
+KEY_COLUMN_USAGE information_schema.KEY_COLUMN_USAGE 1
+PARAMETERS information_schema.PARAMETERS 1
+PARTITIONS information_schema.PARTITIONS 1
+PLUGINS information_schema.PLUGINS 1
+PROCESSLIST information_schema.PROCESSLIST 1
+PROFILING information_schema.PROFILING 1
+REFERENTIAL_CONSTRAINTS information_schema.REFERENTIAL_CONSTRAINTS 1
+ROUTINES information_schema.ROUTINES 1
+SCHEMATA information_schema.SCHEMATA 1
+SCHEMA_PRIVILEGES information_schema.SCHEMA_PRIVILEGES 1
+SESSION_STATUS information_schema.SESSION_STATUS 1
+SESSION_VARIABLES information_schema.SESSION_VARIABLES 1
+SPATIAL_REF_SYS information_schema.SPATIAL_REF_SYS 1
+STATISTICS information_schema.STATISTICS 1
+SYSTEM_VARIABLES information_schema.SYSTEM_VARIABLES 1
+TABLES information_schema.TABLES 1
+TABLESPACES information_schema.TABLESPACES 1
+TABLE_CONSTRAINTS information_schema.TABLE_CONSTRAINTS 1
+TABLE_PRIVILEGES information_schema.TABLE_PRIVILEGES 1
+TABLE_STATISTICS information_schema.TABLE_STATISTICS 1
+TRIGGERS information_schema.TRIGGERS 1
+USER_PRIVILEGES information_schema.USER_PRIVILEGES 1
+USER_STATISTICS information_schema.USER_STATISTICS 1
+VIEWS information_schema.VIEWS 1
++---------------------------------------+
++---------------------------------------+
++---------------------------------------+
+Database: information_schema
+| Tables |
+| ALL_PLUGINS |
+| APPLICABLE_ROLES |
+| CHARACTER_SETS |
+| CHECK_CONSTRAINTS |
+| CLIENT_STATISTICS |
+| COLLATIONS |
+| COLLATION_CHARACTER_SET_APPLICABILITY |
+| COLUMNS |
+| COLUMN_PRIVILEGES |
+| ENABLED_ROLES |
+| ENGINES |
+| EVENTS |
+| FILES |
+| GEOMETRY_COLUMNS |
+| GLOBAL_STATUS |
+| GLOBAL_VARIABLES |
+| INDEX_STATISTICS |
+| INNODB_BUFFER_PAGE |
+| INNODB_BUFFER_PAGE_LRU |
+| INNODB_BUFFER_POOL_STATS |
+| INNODB_CMP |
+| INNODB_CMPMEM |
+| INNODB_CMPMEM_RESET |
+| INNODB_CMP_PER_INDEX |
+| INNODB_CMP_RESET |
+| INNODB_LOCKS |
+| INNODB_LOCK_WAITS |
+| INNODB_METRICS |
+| INNODB_MUTEXES |
+| INNODB_SYS_COLUMNS |
+| INNODB_SYS_FIELDS |
+| INNODB_SYS_FOREIGN |
+| INNODB_SYS_FOREIGN_COLS |
+| INNODB_SYS_INDEXES |
+| INNODB_SYS_TABLES |
+| INNODB_SYS_TABLESTATS |
+| INNODB_SYS_VIRTUAL |
+| INNODB_TABLESPACES_ENCRYPTION |
+| INNODB_TABLESPACES_SCRUBBING |
+| INNODB_TRX |
++| KEYWORDS |
+| KEY_CACHES |
+| KEY_COLUMN_USAGE |
+| PARAMETERS |
+| PARTITIONS |
+| PLUGINS |
+| PROCESSLIST |
+| PROFILING |
+| REFERENTIAL_CONSTRAINTS |
+| ROUTINES |
+| SCHEMATA |
+| SCHEMA_PRIVILEGES |
+| SESSION_STATUS |
+| SESSION_VARIABLES |
+| SPATIAL_REF_SYS |
++| SQL_FUNCTIONS |
+| STATISTICS |
+| SYSTEM_VARIABLES |
+| TABLES |
+| TABLESPACES |
+| TABLE_CONSTRAINTS |
+| TABLE_PRIVILEGES |
+| TABLE_STATISTICS |
+| TRIGGERS |
+| USER_PRIVILEGES |
+| USER_STATISTICS |
+| VIEWS |
++---------------------------------------+
++---------------------------------------+
++---------------------------------------+
+Database: INFORMATION_SCHEMA
+| Tables |
+| ALL_PLUGINS |
+| APPLICABLE_ROLES |
+| CHARACTER_SETS |
+| CHECK_CONSTRAINTS |
+| CLIENT_STATISTICS |
+| COLLATIONS |
+| COLLATION_CHARACTER_SET_APPLICABILITY |
+| COLUMNS |
+| COLUMN_PRIVILEGES |
+| ENABLED_ROLES |
+| ENGINES |
+| EVENTS |
+| FILES |
+| GEOMETRY_COLUMNS |
+| GLOBAL_STATUS |
+| GLOBAL_VARIABLES |
+| INDEX_STATISTICS |
+| INNODB_BUFFER_PAGE |
+| INNODB_BUFFER_PAGE_LRU |
+| INNODB_BUFFER_POOL_STATS |
+| INNODB_CMP |
+| INNODB_CMPMEM |
+| INNODB_CMPMEM_RESET |
+| INNODB_CMP_PER_INDEX |
+| INNODB_CMP_RESET |
+| INNODB_LOCKS |
+| INNODB_LOCK_WAITS |
+| INNODB_METRICS |
+| INNODB_MUTEXES |
+| INNODB_SYS_COLUMNS |
+| INNODB_SYS_FIELDS |
+| INNODB_SYS_FOREIGN |
+| INNODB_SYS_FOREIGN_COLS |
+| INNODB_SYS_INDEXES |
+| INNODB_SYS_TABLES |
+| INNODB_SYS_TABLESTATS |
+| INNODB_SYS_VIRTUAL |
+| INNODB_TABLESPACES_ENCRYPTION |
+| INNODB_TABLESPACES_SCRUBBING |
+| INNODB_TRX |
++| KEYWORDS |
+| KEY_CACHES |
+| KEY_COLUMN_USAGE |
+| PARAMETERS |
+| PARTITIONS |
+| PLUGINS |
+| PROCESSLIST |
+| PROFILING |
+| REFERENTIAL_CONSTRAINTS |
+| ROUTINES |
+| SCHEMATA |
+| SCHEMA_PRIVILEGES |
+| SESSION_STATUS |
+| SESSION_VARIABLES |
+| SPATIAL_REF_SYS |
++| SQL_FUNCTIONS |
+| STATISTICS |
+| SYSTEM_VARIABLES |
+| TABLES |
+| TABLESPACES |
+| TABLE_CONSTRAINTS |
+| TABLE_PRIVILEGES |
+| TABLE_STATISTICS |
+| TRIGGERS |
+| USER_PRIVILEGES |
+| USER_STATISTICS |
+| VIEWS |
++--------------------+
++--------------------+
++--------------------+
+Wildcard: inf_rmation_schema
+| Databases |
+| information_schema |
+SELECT table_schema, count(*) FROM information_schema.TABLES WHERE table_schema IN ('mysql', 'INFORMATION_SCHEMA', 'test', 'mysqltest') GROUP BY TABLE_SCHEMA;
+table_schema count(*)
- information_schema 65
++information_schema 67
+mysql 31
diff --cc sql/item_create.cc
index 70ac2abe959,a3c51d1949e..657397c41dd
--- a/sql/item_create.cc
+++ b/sql/item_create.cc
@@@ -7053,356 -6764,344 +7052,356 @@@ Create_func_year_week::create_native(TH
- keep 1 line per entry, it makes grep | sort easier
*/
- static Native_func_registry func_array[] =
+ Native_func_registry func_array[] =
{
- { { C_STRING_WITH_LEN("ABS") }, BUILDER(Create_func_abs)},
- { { C_STRING_WITH_LEN("ACOS") }, BUILDER(Create_func_acos)},
- { { C_STRING_WITH_LEN("ADDTIME") }, BUILDER(Create_func_addtime)},
- { { C_STRING_WITH_LEN("AES_DECRYPT") }, BUILDER(Create_func_aes_decrypt)},
- { { C_STRING_WITH_LEN("AES_ENCRYPT") }, BUILDER(Create_func_aes_encrypt)},
- { { C_STRING_WITH_LEN("AREA") }, GEOM_BUILDER(Create_func_area)},
- { { C_STRING_WITH_LEN("ASBINARY") }, GEOM_BUILDER(Create_func_as_wkb)},
- { { C_STRING_WITH_LEN("ASIN") }, BUILDER(Create_func_asin)},
- { { C_STRING_WITH_LEN("ASTEXT") }, GEOM_BUILDER(Create_func_as_wkt)},
- { { C_STRING_WITH_LEN("ASWKB") }, GEOM_BUILDER(Create_func_as_wkb)},
- { { C_STRING_WITH_LEN("ASWKT") }, GEOM_BUILDER(Create_func_as_wkt)},
- { { C_STRING_WITH_LEN("ATAN") }, BUILDER(Create_func_atan)},
- { { C_STRING_WITH_LEN("ATAN2") }, BUILDER(Create_func_atan)},
- { { C_STRING_WITH_LEN("BENCHMARK") }, BUILDER(Create_func_benchmark)},
- { { C_STRING_WITH_LEN("BIN") }, BUILDER(Create_func_bin)},
- { { C_STRING_WITH_LEN("BINLOG_GTID_POS") }, BUILDER(Create_func_binlog_gtid_pos)},
- { { C_STRING_WITH_LEN("BIT_COUNT") }, BUILDER(Create_func_bit_count)},
- { { C_STRING_WITH_LEN("BIT_LENGTH") }, BUILDER(Create_func_bit_length)},
- { { C_STRING_WITH_LEN("BOUNDARY") }, GEOM_BUILDER(Create_func_boundary)},
- { { C_STRING_WITH_LEN("BUFFER") }, GEOM_BUILDER(Create_func_buffer)},
- { { C_STRING_WITH_LEN("CEIL") }, BUILDER(Create_func_ceiling)},
- { { C_STRING_WITH_LEN("CEILING") }, BUILDER(Create_func_ceiling)},
- { { C_STRING_WITH_LEN("CENTROID") }, GEOM_BUILDER(Create_func_centroid)},
- { { C_STRING_WITH_LEN("CHARACTER_LENGTH") }, BUILDER(Create_func_char_length)},
- { { C_STRING_WITH_LEN("CHAR_LENGTH") }, BUILDER(Create_func_char_length)},
- { { C_STRING_WITH_LEN("COERCIBILITY") }, BUILDER(Create_func_coercibility)},
- { { C_STRING_WITH_LEN("COLUMN_CHECK") }, BUILDER(Create_func_dyncol_check)},
- { { C_STRING_WITH_LEN("COLUMN_EXISTS") }, BUILDER(Create_func_dyncol_exists)},
- { { C_STRING_WITH_LEN("COLUMN_LIST") }, BUILDER(Create_func_dyncol_list)},
- { { C_STRING_WITH_LEN("COLUMN_JSON") }, BUILDER(Create_func_dyncol_json)},
- { { C_STRING_WITH_LEN("COMPRESS") }, BUILDER(Create_func_compress)},
- { { C_STRING_WITH_LEN("CONCAT") }, BUILDER(Create_func_concat)},
- { { C_STRING_WITH_LEN("CONCAT_WS") }, BUILDER(Create_func_concat_ws)},
- { { C_STRING_WITH_LEN("CONNECTION_ID") }, BUILDER(Create_func_connection_id)},
- { { C_STRING_WITH_LEN("CONV") }, BUILDER(Create_func_conv)},
- { { C_STRING_WITH_LEN("CONVERT_TZ") }, BUILDER(Create_func_convert_tz)},
- { { C_STRING_WITH_LEN("CONVEXHULL") }, GEOM_BUILDER(Create_func_convexhull)},
- { { C_STRING_WITH_LEN("COS") }, BUILDER(Create_func_cos)},
- { { C_STRING_WITH_LEN("COT") }, BUILDER(Create_func_cot)},
- { { C_STRING_WITH_LEN("CRC32") }, BUILDER(Create_func_crc32)},
- { { C_STRING_WITH_LEN("CROSSES") }, GEOM_BUILDER(Create_func_crosses)},
- { { C_STRING_WITH_LEN("DATEDIFF") }, BUILDER(Create_func_datediff)},
- { { C_STRING_WITH_LEN("DATE_FORMAT") }, BUILDER(Create_func_date_format)},
- { { C_STRING_WITH_LEN("DAYNAME") }, BUILDER(Create_func_dayname)},
- { { C_STRING_WITH_LEN("DAYOFMONTH") }, BUILDER(Create_func_dayofmonth)},
- { { C_STRING_WITH_LEN("DAYOFWEEK") }, BUILDER(Create_func_dayofweek)},
- { { C_STRING_WITH_LEN("DAYOFYEAR") }, BUILDER(Create_func_dayofyear)},
- { { C_STRING_WITH_LEN("DECODE") }, BUILDER(Create_func_decode)},
- { { C_STRING_WITH_LEN("DEGREES") }, BUILDER(Create_func_degrees)},
- { { C_STRING_WITH_LEN("DECODE_HISTOGRAM") }, BUILDER(Create_func_decode_histogram)},
- { { C_STRING_WITH_LEN("DES_DECRYPT") }, BUILDER(Create_func_des_decrypt)},
- { { C_STRING_WITH_LEN("DES_ENCRYPT") }, BUILDER(Create_func_des_encrypt)},
- { { C_STRING_WITH_LEN("DIMENSION") }, GEOM_BUILDER(Create_func_dimension)},
- { { C_STRING_WITH_LEN("DISJOINT") }, GEOM_BUILDER(Create_func_mbr_disjoint)},
- { { C_STRING_WITH_LEN("ELT") }, BUILDER(Create_func_elt)},
- { { C_STRING_WITH_LEN("ENCODE") }, BUILDER(Create_func_encode)},
- { { C_STRING_WITH_LEN("ENCRYPT") }, BUILDER(Create_func_encrypt)},
- { { C_STRING_WITH_LEN("ENDPOINT") }, GEOM_BUILDER(Create_func_endpoint)},
- { { C_STRING_WITH_LEN("ENVELOPE") }, GEOM_BUILDER(Create_func_envelope)},
- { { C_STRING_WITH_LEN("EQUALS") }, GEOM_BUILDER(Create_func_equals)},
- { { C_STRING_WITH_LEN("EXP") }, BUILDER(Create_func_exp)},
- { { C_STRING_WITH_LEN("EXPORT_SET") }, BUILDER(Create_func_export_set)},
- { { C_STRING_WITH_LEN("EXTERIORRING") }, GEOM_BUILDER(Create_func_exteriorring)},
- { { C_STRING_WITH_LEN("EXTRACTVALUE") }, BUILDER(Create_func_xml_extractvalue)},
- { { C_STRING_WITH_LEN("FIELD") }, BUILDER(Create_func_field)},
- { { C_STRING_WITH_LEN("FIND_IN_SET") }, BUILDER(Create_func_find_in_set)},
- { { C_STRING_WITH_LEN("FLOOR") }, BUILDER(Create_func_floor)},
- { { C_STRING_WITH_LEN("FORMAT") }, BUILDER(Create_func_format)},
- { { C_STRING_WITH_LEN("FOUND_ROWS") }, BUILDER(Create_func_found_rows)},
- { { C_STRING_WITH_LEN("FROM_BASE64") }, BUILDER(Create_func_from_base64)},
- { { C_STRING_WITH_LEN("FROM_DAYS") }, BUILDER(Create_func_from_days)},
- { { C_STRING_WITH_LEN("FROM_UNIXTIME") }, BUILDER(Create_func_from_unixtime)},
- { { C_STRING_WITH_LEN("GEOMCOLLFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("GEOMCOLLFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("GEOMETRYCOLLECTIONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("GEOMETRYCOLLECTIONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("GEOMETRYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("GEOMETRYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("GEOMETRYN") }, GEOM_BUILDER(Create_func_geometryn)},
- { { C_STRING_WITH_LEN("GEOMETRYTYPE") }, GEOM_BUILDER(Create_func_geometry_type)},
- { { C_STRING_WITH_LEN("GEOMFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("GEOMFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("GET_LOCK") }, BUILDER(Create_func_get_lock)},
- { { C_STRING_WITH_LEN("GLENGTH") }, GEOM_BUILDER(Create_func_glength)},
- { { C_STRING_WITH_LEN("GREATEST") }, BUILDER(Create_func_greatest)},
- { { C_STRING_WITH_LEN("HEX") }, BUILDER(Create_func_hex)},
- { { C_STRING_WITH_LEN("IFNULL") }, BUILDER(Create_func_ifnull)},
- { { C_STRING_WITH_LEN("INET_ATON") }, BUILDER(Create_func_inet_aton)},
- { { C_STRING_WITH_LEN("INET_NTOA") }, BUILDER(Create_func_inet_ntoa)},
- { { C_STRING_WITH_LEN("INET6_ATON") }, BUILDER(Create_func_inet6_aton)},
- { { C_STRING_WITH_LEN("INET6_NTOA") }, BUILDER(Create_func_inet6_ntoa)},
- { { C_STRING_WITH_LEN("IS_IPV4") }, BUILDER(Create_func_is_ipv4)},
- { { C_STRING_WITH_LEN("IS_IPV6") }, BUILDER(Create_func_is_ipv6)},
- { { C_STRING_WITH_LEN("IS_IPV4_COMPAT") }, BUILDER(Create_func_is_ipv4_compat)},
- { { C_STRING_WITH_LEN("IS_IPV4_MAPPED") }, BUILDER(Create_func_is_ipv4_mapped)},
- { { C_STRING_WITH_LEN("INSTR") }, BUILDER(Create_func_instr)},
- { { C_STRING_WITH_LEN("INTERIORRINGN") }, GEOM_BUILDER(Create_func_interiorringn)},
- { { C_STRING_WITH_LEN("INTERSECTS") }, GEOM_BUILDER(Create_func_mbr_intersects)},
- { { C_STRING_WITH_LEN("ISCLOSED") }, GEOM_BUILDER(Create_func_isclosed)},
- { { C_STRING_WITH_LEN("ISEMPTY") }, GEOM_BUILDER(Create_func_isempty)},
- { { C_STRING_WITH_LEN("ISNULL") }, BUILDER(Create_func_isnull)},
- { { C_STRING_WITH_LEN("ISRING") }, GEOM_BUILDER(Create_func_isring)},
- { { C_STRING_WITH_LEN("ISSIMPLE") }, GEOM_BUILDER(Create_func_issimple)},
- { { C_STRING_WITH_LEN("IS_FREE_LOCK") }, BUILDER(Create_func_is_free_lock)},
- { { C_STRING_WITH_LEN("IS_USED_LOCK") }, BUILDER(Create_func_is_used_lock)},
- { { C_STRING_WITH_LEN("JSON_ARRAY") }, BUILDER(Create_func_json_array)},
- { { C_STRING_WITH_LEN("JSON_ARRAY_APPEND") }, BUILDER(Create_func_json_array_append)},
- { { C_STRING_WITH_LEN("JSON_ARRAY_INSERT") }, BUILDER(Create_func_json_array_insert)},
- { { C_STRING_WITH_LEN("JSON_COMPACT") }, BUILDER(Create_func_json_compact)},
- { { C_STRING_WITH_LEN("JSON_CONTAINS") }, BUILDER(Create_func_json_contains)},
- { { C_STRING_WITH_LEN("JSON_CONTAINS_PATH") }, BUILDER(Create_func_json_contains_path)},
- { { C_STRING_WITH_LEN("JSON_DEPTH") }, BUILDER(Create_func_json_depth)},
- { { C_STRING_WITH_LEN("JSON_DETAILED") }, BUILDER(Create_func_json_detailed)},
- { { C_STRING_WITH_LEN("JSON_EXISTS") }, BUILDER(Create_func_json_exists)},
- { { C_STRING_WITH_LEN("JSON_EXTRACT") }, BUILDER(Create_func_json_extract)},
- { { C_STRING_WITH_LEN("JSON_INSERT") }, BUILDER(Create_func_json_insert)},
- { { C_STRING_WITH_LEN("JSON_KEYS") }, BUILDER(Create_func_json_keys)},
- { { C_STRING_WITH_LEN("JSON_LENGTH") }, BUILDER(Create_func_json_length)},
- { { C_STRING_WITH_LEN("JSON_LOOSE") }, BUILDER(Create_func_json_loose)},
- { { C_STRING_WITH_LEN("JSON_MERGE") }, BUILDER(Create_func_json_merge)},
- { { C_STRING_WITH_LEN("JSON_MERGE_PATCH") }, BUILDER(Create_func_json_merge_patch)},
- { { C_STRING_WITH_LEN("JSON_MERGE_PRESERVE") }, BUILDER(Create_func_json_merge)},
- { { C_STRING_WITH_LEN("JSON_QUERY") }, BUILDER(Create_func_json_query)},
- { { C_STRING_WITH_LEN("JSON_QUOTE") }, BUILDER(Create_func_json_quote)},
- { { C_STRING_WITH_LEN("JSON_OBJECT") }, BUILDER(Create_func_json_object)},
- { { C_STRING_WITH_LEN("JSON_REMOVE") }, BUILDER(Create_func_json_remove)},
- { { C_STRING_WITH_LEN("JSON_REPLACE") }, BUILDER(Create_func_json_replace)},
- { { C_STRING_WITH_LEN("JSON_SET") }, BUILDER(Create_func_json_set)},
- { { C_STRING_WITH_LEN("JSON_SEARCH") }, BUILDER(Create_func_json_search)},
- { { C_STRING_WITH_LEN("JSON_TYPE") }, BUILDER(Create_func_json_type)},
- { { C_STRING_WITH_LEN("JSON_UNQUOTE") }, BUILDER(Create_func_json_unquote)},
- { { C_STRING_WITH_LEN("JSON_VALID") }, BUILDER(Create_func_json_valid)},
- { { C_STRING_WITH_LEN("JSON_VALUE") }, BUILDER(Create_func_json_value)},
- { { C_STRING_WITH_LEN("LAST_DAY") }, BUILDER(Create_func_last_day)},
- { { C_STRING_WITH_LEN("LAST_INSERT_ID") }, BUILDER(Create_func_last_insert_id)},
- { { C_STRING_WITH_LEN("LCASE") }, BUILDER(Create_func_lcase)},
- { { C_STRING_WITH_LEN("LEAST") }, BUILDER(Create_func_least)},
- { { C_STRING_WITH_LEN("LENGTH") }, BUILDER(Create_func_length)},
+ { { STRING_WITH_LEN("ABS") }, BUILDER(Create_func_abs)},
+ { { STRING_WITH_LEN("ACOS") }, BUILDER(Create_func_acos)},
+ { { STRING_WITH_LEN("ADDTIME") }, BUILDER(Create_func_addtime)},
+ { { STRING_WITH_LEN("AES_DECRYPT") }, BUILDER(Create_func_aes_decrypt)},
+ { { STRING_WITH_LEN("AES_ENCRYPT") }, BUILDER(Create_func_aes_encrypt)},
+ { { STRING_WITH_LEN("AREA") }, GEOM_BUILDER(Create_func_area)},
+ { { STRING_WITH_LEN("ASBINARY") }, GEOM_BUILDER(Create_func_as_wkb)},
+ { { STRING_WITH_LEN("ASIN") }, BUILDER(Create_func_asin)},
+ { { STRING_WITH_LEN("ASTEXT") }, GEOM_BUILDER(Create_func_as_wkt)},
+ { { STRING_WITH_LEN("ASWKB") }, GEOM_BUILDER(Create_func_as_wkb)},
+ { { STRING_WITH_LEN("ASWKT") }, GEOM_BUILDER(Create_func_as_wkt)},
+ { { STRING_WITH_LEN("ATAN") }, BUILDER(Create_func_atan)},
+ { { STRING_WITH_LEN("ATAN2") }, BUILDER(Create_func_atan)},
+ { { STRING_WITH_LEN("BENCHMARK") }, BUILDER(Create_func_benchmark)},
+ { { STRING_WITH_LEN("BIN") }, BUILDER(Create_func_bin)},
+ { { STRING_WITH_LEN("BINLOG_GTID_POS") }, BUILDER(Create_func_binlog_gtid_pos)},
+ { { STRING_WITH_LEN("BIT_COUNT") }, BUILDER(Create_func_bit_count)},
+ { { STRING_WITH_LEN("BIT_LENGTH") }, BUILDER(Create_func_bit_length)},
+ { { STRING_WITH_LEN("BOUNDARY") }, GEOM_BUILDER(Create_func_boundary)},
+ { { STRING_WITH_LEN("BUFFER") }, GEOM_BUILDER(Create_func_buffer)},
+ { { STRING_WITH_LEN("CEIL") }, BUILDER(Create_func_ceiling)},
+ { { STRING_WITH_LEN("CEILING") }, BUILDER(Create_func_ceiling)},
+ { { STRING_WITH_LEN("CENTROID") }, GEOM_BUILDER(Create_func_centroid)},
+ { { STRING_WITH_LEN("CHARACTER_LENGTH") }, BUILDER(Create_func_char_length)},
+ { { STRING_WITH_LEN("CHAR_LENGTH") }, BUILDER(Create_func_char_length)},
+ { { STRING_WITH_LEN("CHR") }, BUILDER(Create_func_chr)},
+ { { STRING_WITH_LEN("COERCIBILITY") }, BUILDER(Create_func_coercibility)},
+ { { STRING_WITH_LEN("COLUMN_CHECK") }, BUILDER(Create_func_dyncol_check)},
+ { { STRING_WITH_LEN("COLUMN_EXISTS") }, BUILDER(Create_func_dyncol_exists)},
+ { { STRING_WITH_LEN("COLUMN_LIST") }, BUILDER(Create_func_dyncol_list)},
+ { { STRING_WITH_LEN("COLUMN_JSON") }, BUILDER(Create_func_dyncol_json)},
+ { { STRING_WITH_LEN("COMPRESS") }, BUILDER(Create_func_compress)},
+ { { STRING_WITH_LEN("CONCAT") }, BUILDER(Create_func_concat)},
+ { { STRING_WITH_LEN("CONCAT_OPERATOR_ORACLE") }, BUILDER(Create_func_concat_operator_oracle)},
+ { { STRING_WITH_LEN("CONCAT_WS") }, BUILDER(Create_func_concat_ws)},
+ { { STRING_WITH_LEN("CONNECTION_ID") }, BUILDER(Create_func_connection_id)},
+ { { STRING_WITH_LEN("CONV") }, BUILDER(Create_func_conv)},
+ { { STRING_WITH_LEN("CONVERT_TZ") }, BUILDER(Create_func_convert_tz)},
+ { { STRING_WITH_LEN("CONVEXHULL") }, GEOM_BUILDER(Create_func_convexhull)},
+ { { STRING_WITH_LEN("COS") }, BUILDER(Create_func_cos)},
+ { { STRING_WITH_LEN("COT") }, BUILDER(Create_func_cot)},
+ { { STRING_WITH_LEN("CRC32") }, BUILDER(Create_func_crc32)},
+ { { STRING_WITH_LEN("CROSSES") }, GEOM_BUILDER(Create_func_crosses)},
+ { { STRING_WITH_LEN("DATEDIFF") }, BUILDER(Create_func_datediff)},
+ { { STRING_WITH_LEN("DAYNAME") }, BUILDER(Create_func_dayname)},
+ { { STRING_WITH_LEN("DAYOFMONTH") }, BUILDER(Create_func_dayofmonth)},
+ { { STRING_WITH_LEN("DAYOFWEEK") }, BUILDER(Create_func_dayofweek)},
+ { { STRING_WITH_LEN("DAYOFYEAR") }, BUILDER(Create_func_dayofyear)},
+ { { STRING_WITH_LEN("DEGREES") }, BUILDER(Create_func_degrees)},
+ { { STRING_WITH_LEN("DECODE_HISTOGRAM") }, BUILDER(Create_func_decode_histogram)},
+ { { STRING_WITH_LEN("DECODE_ORACLE") }, BUILDER(Create_func_decode_oracle)},
+ { { STRING_WITH_LEN("DES_DECRYPT") }, BUILDER(Create_func_des_decrypt)},
+ { { STRING_WITH_LEN("DES_ENCRYPT") }, BUILDER(Create_func_des_encrypt)},
+ { { STRING_WITH_LEN("DIMENSION") }, GEOM_BUILDER(Create_func_dimension)},
+ { { STRING_WITH_LEN("DISJOINT") }, GEOM_BUILDER(Create_func_mbr_disjoint)},
+ { { STRING_WITH_LEN("ELT") }, BUILDER(Create_func_elt)},
+ { { STRING_WITH_LEN("ENCODE") }, BUILDER(Create_func_encode)},
+ { { STRING_WITH_LEN("ENCRYPT") }, BUILDER(Create_func_encrypt)},
+ { { STRING_WITH_LEN("ENDPOINT") }, GEOM_BUILDER(Create_func_endpoint)},
+ { { STRING_WITH_LEN("ENVELOPE") }, GEOM_BUILDER(Create_func_envelope)},
+ { { STRING_WITH_LEN("EQUALS") }, GEOM_BUILDER(Create_func_equals)},
+ { { STRING_WITH_LEN("EXP") }, BUILDER(Create_func_exp)},
+ { { STRING_WITH_LEN("EXPORT_SET") }, BUILDER(Create_func_export_set)},
+ { { STRING_WITH_LEN("EXTERIORRING") }, GEOM_BUILDER(Create_func_exteriorring)},
+ { { STRING_WITH_LEN("EXTRACTVALUE") }, BUILDER(Create_func_xml_extractvalue)},
+ { { STRING_WITH_LEN("FIELD") }, BUILDER(Create_func_field)},
+ { { STRING_WITH_LEN("FIND_IN_SET") }, BUILDER(Create_func_find_in_set)},
+ { { STRING_WITH_LEN("FLOOR") }, BUILDER(Create_func_floor)},
+ { { STRING_WITH_LEN("FORMAT") }, BUILDER(Create_func_format)},
+ { { STRING_WITH_LEN("FOUND_ROWS") }, BUILDER(Create_func_found_rows)},
+ { { STRING_WITH_LEN("FROM_BASE64") }, BUILDER(Create_func_from_base64)},
+ { { STRING_WITH_LEN("FROM_DAYS") }, BUILDER(Create_func_from_days)},
+ { { STRING_WITH_LEN("FROM_UNIXTIME") }, BUILDER(Create_func_from_unixtime)},
+ { { STRING_WITH_LEN("GEOMCOLLFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("GEOMCOLLFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("GEOMETRYCOLLECTIONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("GEOMETRYCOLLECTIONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("GEOMETRYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("GEOMETRYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("GEOMETRYN") }, GEOM_BUILDER(Create_func_geometryn)},
+ { { STRING_WITH_LEN("GEOMETRYTYPE") }, GEOM_BUILDER(Create_func_geometry_type)},
+ { { STRING_WITH_LEN("GEOMFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("GEOMFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("GET_LOCK") }, BUILDER(Create_func_get_lock)},
+ { { STRING_WITH_LEN("GLENGTH") }, GEOM_BUILDER(Create_func_glength)},
+ { { STRING_WITH_LEN("GREATEST") }, BUILDER(Create_func_greatest)},
+ { { STRING_WITH_LEN("HEX") }, BUILDER(Create_func_hex)},
+ { { STRING_WITH_LEN("IFNULL") }, BUILDER(Create_func_ifnull)},
+ { { STRING_WITH_LEN("INET_ATON") }, BUILDER(Create_func_inet_aton)},
+ { { STRING_WITH_LEN("INET_NTOA") }, BUILDER(Create_func_inet_ntoa)},
+ { { STRING_WITH_LEN("INET6_ATON") }, BUILDER(Create_func_inet6_aton)},
+ { { STRING_WITH_LEN("INET6_NTOA") }, BUILDER(Create_func_inet6_ntoa)},
+ { { STRING_WITH_LEN("IS_IPV4") }, BUILDER(Create_func_is_ipv4)},
+ { { STRING_WITH_LEN("IS_IPV6") }, BUILDER(Create_func_is_ipv6)},
+ { { STRING_WITH_LEN("IS_IPV4_COMPAT") }, BUILDER(Create_func_is_ipv4_compat)},
+ { { STRING_WITH_LEN("IS_IPV4_MAPPED") }, BUILDER(Create_func_is_ipv4_mapped)},
+ { { STRING_WITH_LEN("INSTR") }, BUILDER(Create_func_instr)},
+ { { STRING_WITH_LEN("INTERIORRINGN") }, GEOM_BUILDER(Create_func_interiorringn)},
+ { { STRING_WITH_LEN("INTERSECTS") }, GEOM_BUILDER(Create_func_mbr_intersects)},
+ { { STRING_WITH_LEN("ISCLOSED") }, GEOM_BUILDER(Create_func_isclosed)},
+ { { STRING_WITH_LEN("ISEMPTY") }, GEOM_BUILDER(Create_func_isempty)},
+ { { STRING_WITH_LEN("ISNULL") }, BUILDER(Create_func_isnull)},
+ { { STRING_WITH_LEN("ISRING") }, GEOM_BUILDER(Create_func_isring)},
+ { { STRING_WITH_LEN("ISSIMPLE") }, GEOM_BUILDER(Create_func_issimple)},
+ { { STRING_WITH_LEN("IS_FREE_LOCK") }, BUILDER(Create_func_is_free_lock)},
+ { { STRING_WITH_LEN("IS_USED_LOCK") }, BUILDER(Create_func_is_used_lock)},
+ { { STRING_WITH_LEN("JSON_ARRAY") }, BUILDER(Create_func_json_array)},
+ { { STRING_WITH_LEN("JSON_ARRAY_APPEND") }, BUILDER(Create_func_json_array_append)},
+ { { STRING_WITH_LEN("JSON_ARRAY_INSERT") }, BUILDER(Create_func_json_array_insert)},
+ { { STRING_WITH_LEN("JSON_COMPACT") }, BUILDER(Create_func_json_compact)},
+ { { STRING_WITH_LEN("JSON_CONTAINS") }, BUILDER(Create_func_json_contains)},
+ { { STRING_WITH_LEN("JSON_CONTAINS_PATH") }, BUILDER(Create_func_json_contains_path)},
+ { { STRING_WITH_LEN("JSON_DEPTH") }, BUILDER(Create_func_json_depth)},
+ { { STRING_WITH_LEN("JSON_DETAILED") }, BUILDER(Create_func_json_detailed)},
+ { { STRING_WITH_LEN("JSON_EXISTS") }, BUILDER(Create_func_json_exists)},
+ { { STRING_WITH_LEN("JSON_EXTRACT") }, BUILDER(Create_func_json_extract)},
+ { { STRING_WITH_LEN("JSON_INSERT") }, BUILDER(Create_func_json_insert)},
+ { { STRING_WITH_LEN("JSON_KEYS") }, BUILDER(Create_func_json_keys)},
+ { { STRING_WITH_LEN("JSON_LENGTH") }, BUILDER(Create_func_json_length)},
+ { { STRING_WITH_LEN("JSON_LOOSE") }, BUILDER(Create_func_json_loose)},
+ { { STRING_WITH_LEN("JSON_MERGE") }, BUILDER(Create_func_json_merge)},
+ { { STRING_WITH_LEN("JSON_MERGE_PATCH") }, BUILDER(Create_func_json_merge_patch)},
+ { { STRING_WITH_LEN("JSON_MERGE_PRESERVE") }, BUILDER(Create_func_json_merge)},
+ { { STRING_WITH_LEN("JSON_QUERY") }, BUILDER(Create_func_json_query)},
+ { { STRING_WITH_LEN("JSON_QUOTE") }, BUILDER(Create_func_json_quote)},
+ { { STRING_WITH_LEN("JSON_OBJECT") }, BUILDER(Create_func_json_object)},
+ { { STRING_WITH_LEN("JSON_REMOVE") }, BUILDER(Create_func_json_remove)},
+ { { STRING_WITH_LEN("JSON_REPLACE") }, BUILDER(Create_func_json_replace)},
+ { { STRING_WITH_LEN("JSON_SET") }, BUILDER(Create_func_json_set)},
+ { { STRING_WITH_LEN("JSON_SEARCH") }, BUILDER(Create_func_json_search)},
+ { { STRING_WITH_LEN("JSON_TYPE") }, BUILDER(Create_func_json_type)},
+ { { STRING_WITH_LEN("JSON_UNQUOTE") }, BUILDER(Create_func_json_unquote)},
+ { { STRING_WITH_LEN("JSON_VALID") }, BUILDER(Create_func_json_valid)},
+ { { STRING_WITH_LEN("JSON_VALUE") }, BUILDER(Create_func_json_value)},
+ { { STRING_WITH_LEN("LAST_DAY") }, BUILDER(Create_func_last_day)},
+ { { STRING_WITH_LEN("LAST_INSERT_ID") }, BUILDER(Create_func_last_insert_id)},
+ { { STRING_WITH_LEN("LCASE") }, BUILDER(Create_func_lcase)},
+ { { STRING_WITH_LEN("LEAST") }, BUILDER(Create_func_least)},
+ { { STRING_WITH_LEN("LENGTH") }, BUILDER(Create_func_length)},
+ { { STRING_WITH_LEN("LENGTHB") }, BUILDER(Create_func_octet_length)},
#ifndef DBUG_OFF
- { { C_STRING_WITH_LEN("LIKE_RANGE_MIN") }, BUILDER(Create_func_like_range_min)},
- { { C_STRING_WITH_LEN("LIKE_RANGE_MAX") }, BUILDER(Create_func_like_range_max)},
+ { { STRING_WITH_LEN("LIKE_RANGE_MIN") }, BUILDER(Create_func_like_range_min)},
+ { { STRING_WITH_LEN("LIKE_RANGE_MAX") }, BUILDER(Create_func_like_range_max)},
#endif
- { { C_STRING_WITH_LEN("LINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("LINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("LINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("LINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("LN") }, BUILDER(Create_func_ln)},
- { { C_STRING_WITH_LEN("LOAD_FILE") }, BUILDER(Create_func_load_file)},
- { { C_STRING_WITH_LEN("LOCATE") }, BUILDER(Create_func_locate)},
- { { C_STRING_WITH_LEN("LOG") }, BUILDER(Create_func_log)},
- { { C_STRING_WITH_LEN("LOG10") }, BUILDER(Create_func_log10)},
- { { C_STRING_WITH_LEN("LOG2") }, BUILDER(Create_func_log2)},
- { { C_STRING_WITH_LEN("LOWER") }, BUILDER(Create_func_lcase)},
- { { C_STRING_WITH_LEN("LPAD") }, BUILDER(Create_func_lpad)},
- { { C_STRING_WITH_LEN("LTRIM") }, BUILDER(Create_func_ltrim)},
- { { C_STRING_WITH_LEN("MAKEDATE") }, BUILDER(Create_func_makedate)},
- { { C_STRING_WITH_LEN("MAKETIME") }, BUILDER(Create_func_maketime)},
- { { C_STRING_WITH_LEN("MAKE_SET") }, BUILDER(Create_func_make_set)},
- { { C_STRING_WITH_LEN("MASTER_GTID_WAIT") }, BUILDER(Create_func_master_gtid_wait)},
- { { C_STRING_WITH_LEN("MASTER_POS_WAIT") }, BUILDER(Create_func_master_pos_wait)},
- { { C_STRING_WITH_LEN("MBRCONTAINS") }, GEOM_BUILDER(Create_func_mbr_contains)},
- { { C_STRING_WITH_LEN("MBRDISJOINT") }, GEOM_BUILDER(Create_func_mbr_disjoint)},
- { { C_STRING_WITH_LEN("MBREQUAL") }, GEOM_BUILDER(Create_func_mbr_equals)},
- { { C_STRING_WITH_LEN("MBREQUALS") }, GEOM_BUILDER(Create_func_mbr_equals)},
- { { C_STRING_WITH_LEN("MBRINTERSECTS") }, GEOM_BUILDER(Create_func_mbr_intersects)},
- { { C_STRING_WITH_LEN("MBROVERLAPS") }, GEOM_BUILDER(Create_func_mbr_overlaps)},
- { { C_STRING_WITH_LEN("MBRTOUCHES") }, GEOM_BUILDER(Create_func_touches)},
- { { C_STRING_WITH_LEN("MBRWITHIN") }, GEOM_BUILDER(Create_func_mbr_within)},
- { { C_STRING_WITH_LEN("MD5") }, BUILDER(Create_func_md5)},
- { { C_STRING_WITH_LEN("MLINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("MLINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("MONTHNAME") }, BUILDER(Create_func_monthname)},
- { { C_STRING_WITH_LEN("MPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("MPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("MPOLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("MPOLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("MULTILINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("MULTILINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("MULTIPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("MULTIPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("MULTIPOLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("MULTIPOLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("NAME_CONST") }, BUILDER(Create_func_name_const)},
- { { C_STRING_WITH_LEN("NULLIF") }, BUILDER(Create_func_nullif)},
- { { C_STRING_WITH_LEN("NUMGEOMETRIES") }, GEOM_BUILDER(Create_func_numgeometries)},
- { { C_STRING_WITH_LEN("NUMINTERIORRINGS") }, GEOM_BUILDER(Create_func_numinteriorring)},
- { { C_STRING_WITH_LEN("NUMPOINTS") }, GEOM_BUILDER(Create_func_numpoints)},
- { { C_STRING_WITH_LEN("OCT") }, BUILDER(Create_func_oct)},
- { { C_STRING_WITH_LEN("OCTET_LENGTH") }, BUILDER(Create_func_length)},
- { { C_STRING_WITH_LEN("ORD") }, BUILDER(Create_func_ord)},
- { { C_STRING_WITH_LEN("OVERLAPS") }, GEOM_BUILDER(Create_func_mbr_overlaps)},
- { { C_STRING_WITH_LEN("PERIOD_ADD") }, BUILDER(Create_func_period_add)},
- { { C_STRING_WITH_LEN("PERIOD_DIFF") }, BUILDER(Create_func_period_diff)},
- { { C_STRING_WITH_LEN("PI") }, BUILDER(Create_func_pi)},
- { { C_STRING_WITH_LEN("POINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("POINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("POINTN") }, GEOM_BUILDER(Create_func_pointn)},
- { { C_STRING_WITH_LEN("POINTONSURFACE") }, GEOM_BUILDER(Create_func_pointonsurface)},
- { { C_STRING_WITH_LEN("POLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("POLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("POLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("POLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("POW") }, BUILDER(Create_func_pow)},
- { { C_STRING_WITH_LEN("POWER") }, BUILDER(Create_func_pow)},
- { { C_STRING_WITH_LEN("QUOTE") }, BUILDER(Create_func_quote)},
- { { C_STRING_WITH_LEN("REGEXP_INSTR") }, BUILDER(Create_func_regexp_instr)},
- { { C_STRING_WITH_LEN("REGEXP_REPLACE") }, BUILDER(Create_func_regexp_replace)},
- { { C_STRING_WITH_LEN("REGEXP_SUBSTR") }, BUILDER(Create_func_regexp_substr)},
- { { C_STRING_WITH_LEN("RADIANS") }, BUILDER(Create_func_radians)},
- { { C_STRING_WITH_LEN("RAND") }, BUILDER(Create_func_rand)},
- { { C_STRING_WITH_LEN("RELEASE_LOCK") }, BUILDER(Create_func_release_lock)},
- { { C_STRING_WITH_LEN("REVERSE") }, BUILDER(Create_func_reverse)},
- { { C_STRING_WITH_LEN("ROUND") }, BUILDER(Create_func_round)},
- { { C_STRING_WITH_LEN("RPAD") }, BUILDER(Create_func_rpad)},
- { { C_STRING_WITH_LEN("RTRIM") }, BUILDER(Create_func_rtrim)},
- { { C_STRING_WITH_LEN("SEC_TO_TIME") }, BUILDER(Create_func_sec_to_time)},
- { { C_STRING_WITH_LEN("SHA") }, BUILDER(Create_func_sha)},
- { { C_STRING_WITH_LEN("SHA1") }, BUILDER(Create_func_sha)},
- { { C_STRING_WITH_LEN("SHA2") }, BUILDER(Create_func_sha2)},
- { { C_STRING_WITH_LEN("SIGN") }, BUILDER(Create_func_sign)},
- { { C_STRING_WITH_LEN("SIN") }, BUILDER(Create_func_sin)},
- { { C_STRING_WITH_LEN("SLEEP") }, BUILDER(Create_func_sleep)},
- { { C_STRING_WITH_LEN("SOUNDEX") }, BUILDER(Create_func_soundex)},
- { { C_STRING_WITH_LEN("SPACE") }, BUILDER(Create_func_space)},
- { { C_STRING_WITH_LEN("SQRT") }, BUILDER(Create_func_sqrt)},
- { { C_STRING_WITH_LEN("SRID") }, GEOM_BUILDER(Create_func_srid)},
- { { C_STRING_WITH_LEN("STARTPOINT") }, GEOM_BUILDER(Create_func_startpoint)},
- { { C_STRING_WITH_LEN("STRCMP") }, BUILDER(Create_func_strcmp)},
- { { C_STRING_WITH_LEN("STR_TO_DATE") }, BUILDER(Create_func_str_to_date)},
- { { C_STRING_WITH_LEN("ST_AREA") }, GEOM_BUILDER(Create_func_area)},
- { { C_STRING_WITH_LEN("ST_ASBINARY") }, GEOM_BUILDER(Create_func_as_wkb)},
- { { C_STRING_WITH_LEN("ST_ASGEOJSON") }, GEOM_BUILDER(Create_func_as_geojson)},
- { { C_STRING_WITH_LEN("ST_ASTEXT") }, GEOM_BUILDER(Create_func_as_wkt)},
- { { C_STRING_WITH_LEN("ST_ASWKB") }, GEOM_BUILDER(Create_func_as_wkb)},
- { { C_STRING_WITH_LEN("ST_ASWKT") }, GEOM_BUILDER(Create_func_as_wkt)},
- { { C_STRING_WITH_LEN("ST_BOUNDARY") }, GEOM_BUILDER(Create_func_boundary)},
- { { C_STRING_WITH_LEN("ST_BUFFER") }, GEOM_BUILDER(Create_func_buffer)},
- { { C_STRING_WITH_LEN("ST_CENTROID") }, GEOM_BUILDER(Create_func_centroid)},
- { { C_STRING_WITH_LEN("ST_CONTAINS") }, GEOM_BUILDER(Create_func_contains)},
- { { C_STRING_WITH_LEN("ST_CONVEXHULL") }, GEOM_BUILDER(Create_func_convexhull)},
- { { C_STRING_WITH_LEN("ST_CROSSES") }, GEOM_BUILDER(Create_func_crosses)},
- { { C_STRING_WITH_LEN("ST_DIFFERENCE") }, GEOM_BUILDER(Create_func_difference)},
- { { C_STRING_WITH_LEN("ST_DIMENSION") }, GEOM_BUILDER(Create_func_dimension)},
- { { C_STRING_WITH_LEN("ST_DISJOINT") }, GEOM_BUILDER(Create_func_disjoint)},
- { { C_STRING_WITH_LEN("ST_DISTANCE") }, GEOM_BUILDER(Create_func_distance)},
- { { C_STRING_WITH_LEN("ST_ENDPOINT") }, GEOM_BUILDER(Create_func_endpoint)},
- { { C_STRING_WITH_LEN("ST_ENVELOPE") }, GEOM_BUILDER(Create_func_envelope)},
- { { C_STRING_WITH_LEN("ST_EQUALS") }, GEOM_BUILDER(Create_func_equals)},
- { { C_STRING_WITH_LEN("ST_EXTERIORRING") }, GEOM_BUILDER(Create_func_exteriorring)},
- { { C_STRING_WITH_LEN("ST_GEOMCOLLFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_GEOMCOLLFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_GEOMETRYCOLLECTIONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_GEOMETRYCOLLECTIONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_GEOMETRYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_GEOMETRYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_GEOMETRYN") }, GEOM_BUILDER(Create_func_geometryn)},
- { { C_STRING_WITH_LEN("ST_GEOMETRYTYPE") }, GEOM_BUILDER(Create_func_geometry_type)},
- { { C_STRING_WITH_LEN("ST_GEOMFROMGEOJSON") }, GEOM_BUILDER(Create_func_geometry_from_json)},
- { { C_STRING_WITH_LEN("ST_GEOMFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_GEOMFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("LINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("LINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("LINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("LINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("LN") }, BUILDER(Create_func_ln)},
+ { { STRING_WITH_LEN("LOAD_FILE") }, BUILDER(Create_func_load_file)},
+ { { STRING_WITH_LEN("LOCATE") }, BUILDER(Create_func_locate)},
+ { { STRING_WITH_LEN("LOG") }, BUILDER(Create_func_log)},
+ { { STRING_WITH_LEN("LOG10") }, BUILDER(Create_func_log10)},
+ { { STRING_WITH_LEN("LOG2") }, BUILDER(Create_func_log2)},
+ { { STRING_WITH_LEN("LOWER") }, BUILDER(Create_func_lcase)},
+ { { STRING_WITH_LEN("LPAD") }, BUILDER(Create_func_lpad)},
+ { { STRING_WITH_LEN("LPAD_ORACLE") }, BUILDER(Create_func_lpad_oracle)},
+ { { STRING_WITH_LEN("LTRIM") }, BUILDER(Create_func_ltrim)},
+ { { STRING_WITH_LEN("LTRIM_ORACLE") }, BUILDER(Create_func_ltrim_oracle)},
+ { { STRING_WITH_LEN("MAKEDATE") }, BUILDER(Create_func_makedate)},
+ { { STRING_WITH_LEN("MAKETIME") }, BUILDER(Create_func_maketime)},
+ { { STRING_WITH_LEN("MAKE_SET") }, BUILDER(Create_func_make_set)},
+ { { STRING_WITH_LEN("MASTER_GTID_WAIT") }, BUILDER(Create_func_master_gtid_wait)},
+ { { STRING_WITH_LEN("MASTER_POS_WAIT") }, BUILDER(Create_func_master_pos_wait)},
+ { { STRING_WITH_LEN("MBRCONTAINS") }, GEOM_BUILDER(Create_func_mbr_contains)},
+ { { STRING_WITH_LEN("MBRDISJOINT") }, GEOM_BUILDER(Create_func_mbr_disjoint)},
+ { { STRING_WITH_LEN("MBREQUAL") }, GEOM_BUILDER(Create_func_mbr_equals)},
+ { { STRING_WITH_LEN("MBREQUALS") }, GEOM_BUILDER(Create_func_mbr_equals)},
+ { { STRING_WITH_LEN("MBRINTERSECTS") }, GEOM_BUILDER(Create_func_mbr_intersects)},
+ { { STRING_WITH_LEN("MBROVERLAPS") }, GEOM_BUILDER(Create_func_mbr_overlaps)},
+ { { STRING_WITH_LEN("MBRTOUCHES") }, GEOM_BUILDER(Create_func_touches)},
+ { { STRING_WITH_LEN("MBRWITHIN") }, GEOM_BUILDER(Create_func_mbr_within)},
+ { { STRING_WITH_LEN("MD5") }, BUILDER(Create_func_md5)},
+ { { STRING_WITH_LEN("MLINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("MLINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("MONTHNAME") }, BUILDER(Create_func_monthname)},
+ { { STRING_WITH_LEN("MPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("MPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("MPOLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("MPOLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("MULTILINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("MULTILINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("MULTIPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("MULTIPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("MULTIPOLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("MULTIPOLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("NAME_CONST") }, BUILDER(Create_func_name_const)},
+ { { STRING_WITH_LEN("NVL") }, BUILDER(Create_func_ifnull)},
+ { { STRING_WITH_LEN("NVL2") }, BUILDER(Create_func_nvl2)},
+ { { STRING_WITH_LEN("NULLIF") }, BUILDER(Create_func_nullif)},
+ { { STRING_WITH_LEN("NUMGEOMETRIES") }, GEOM_BUILDER(Create_func_numgeometries)},
+ { { STRING_WITH_LEN("NUMINTERIORRINGS") }, GEOM_BUILDER(Create_func_numinteriorring)},
+ { { STRING_WITH_LEN("NUMPOINTS") }, GEOM_BUILDER(Create_func_numpoints)},
+ { { STRING_WITH_LEN("OCT") }, BUILDER(Create_func_oct)},
+ { { STRING_WITH_LEN("OCTET_LENGTH") }, BUILDER(Create_func_octet_length)},
+ { { STRING_WITH_LEN("ORD") }, BUILDER(Create_func_ord)},
+ { { STRING_WITH_LEN("OVERLAPS") }, GEOM_BUILDER(Create_func_mbr_overlaps)},
+ { { STRING_WITH_LEN("PERIOD_ADD") }, BUILDER(Create_func_period_add)},
+ { { STRING_WITH_LEN("PERIOD_DIFF") }, BUILDER(Create_func_period_diff)},
+ { { STRING_WITH_LEN("PI") }, BUILDER(Create_func_pi)},
+ { { STRING_WITH_LEN("POINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("POINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("POINTN") }, GEOM_BUILDER(Create_func_pointn)},
+ { { STRING_WITH_LEN("POINTONSURFACE") }, GEOM_BUILDER(Create_func_pointonsurface)},
+ { { STRING_WITH_LEN("POLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("POLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("POLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("POLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("POW") }, BUILDER(Create_func_pow)},
+ { { STRING_WITH_LEN("POWER") }, BUILDER(Create_func_pow)},
+ { { STRING_WITH_LEN("QUOTE") }, BUILDER(Create_func_quote)},
+ { { STRING_WITH_LEN("REGEXP_INSTR") }, BUILDER(Create_func_regexp_instr)},
+ { { STRING_WITH_LEN("REGEXP_REPLACE") }, BUILDER(Create_func_regexp_replace)},
+ { { STRING_WITH_LEN("REGEXP_SUBSTR") }, BUILDER(Create_func_regexp_substr)},
+ { { STRING_WITH_LEN("RADIANS") }, BUILDER(Create_func_radians)},
+ { { STRING_WITH_LEN("RAND") }, BUILDER(Create_func_rand)},
+ { { STRING_WITH_LEN("RELEASE_LOCK") }, BUILDER(Create_func_release_lock)},
+ { { STRING_WITH_LEN("REPLACE_ORACLE") },
+ BUILDER(Create_func_replace_oracle)},
+ { { STRING_WITH_LEN("REVERSE") }, BUILDER(Create_func_reverse)},
+ { { STRING_WITH_LEN("ROUND") }, BUILDER(Create_func_round)},
+ { { STRING_WITH_LEN("RPAD") }, BUILDER(Create_func_rpad)},
+ { { STRING_WITH_LEN("RPAD_ORACLE") }, BUILDER(Create_func_rpad_oracle)},
+ { { STRING_WITH_LEN("RTRIM") }, BUILDER(Create_func_rtrim)},
+ { { STRING_WITH_LEN("RTRIM_ORACLE") }, BUILDER(Create_func_rtrim_oracle)},
+ { { STRING_WITH_LEN("SEC_TO_TIME") }, BUILDER(Create_func_sec_to_time)},
+ { { STRING_WITH_LEN("SHA") }, BUILDER(Create_func_sha)},
+ { { STRING_WITH_LEN("SHA1") }, BUILDER(Create_func_sha)},
+ { { STRING_WITH_LEN("SHA2") }, BUILDER(Create_func_sha2)},
+ { { STRING_WITH_LEN("SIGN") }, BUILDER(Create_func_sign)},
+ { { STRING_WITH_LEN("SIN") }, BUILDER(Create_func_sin)},
+ { { STRING_WITH_LEN("SLEEP") }, BUILDER(Create_func_sleep)},
+ { { STRING_WITH_LEN("SOUNDEX") }, BUILDER(Create_func_soundex)},
+ { { STRING_WITH_LEN("SPACE") }, BUILDER(Create_func_space)},
+ { { STRING_WITH_LEN("SQRT") }, BUILDER(Create_func_sqrt)},
+ { { STRING_WITH_LEN("SRID") }, GEOM_BUILDER(Create_func_srid)},
+ { { STRING_WITH_LEN("STARTPOINT") }, GEOM_BUILDER(Create_func_startpoint)},
+ { { STRING_WITH_LEN("STRCMP") }, BUILDER(Create_func_strcmp)},
+ { { STRING_WITH_LEN("STR_TO_DATE") }, BUILDER(Create_func_str_to_date)},
+ { { STRING_WITH_LEN("ST_AREA") }, GEOM_BUILDER(Create_func_area)},
+ { { STRING_WITH_LEN("ST_ASBINARY") }, GEOM_BUILDER(Create_func_as_wkb)},
+ { { STRING_WITH_LEN("ST_ASGEOJSON") }, GEOM_BUILDER(Create_func_as_geojson)},
+ { { STRING_WITH_LEN("ST_ASTEXT") }, GEOM_BUILDER(Create_func_as_wkt)},
+ { { STRING_WITH_LEN("ST_ASWKB") }, GEOM_BUILDER(Create_func_as_wkb)},
+ { { STRING_WITH_LEN("ST_ASWKT") }, GEOM_BUILDER(Create_func_as_wkt)},
+ { { STRING_WITH_LEN("ST_BOUNDARY") }, GEOM_BUILDER(Create_func_boundary)},
+ { { STRING_WITH_LEN("ST_BUFFER") }, GEOM_BUILDER(Create_func_buffer)},
+ { { STRING_WITH_LEN("ST_CENTROID") }, GEOM_BUILDER(Create_func_centroid)},
+ { { STRING_WITH_LEN("ST_CONTAINS") }, GEOM_BUILDER(Create_func_contains)},
+ { { STRING_WITH_LEN("ST_CONVEXHULL") }, GEOM_BUILDER(Create_func_convexhull)},
+ { { STRING_WITH_LEN("ST_CROSSES") }, GEOM_BUILDER(Create_func_crosses)},
+ { { STRING_WITH_LEN("ST_DIFFERENCE") }, GEOM_BUILDER(Create_func_difference)},
+ { { STRING_WITH_LEN("ST_DIMENSION") }, GEOM_BUILDER(Create_func_dimension)},
+ { { STRING_WITH_LEN("ST_DISJOINT") }, GEOM_BUILDER(Create_func_disjoint)},
+ { { STRING_WITH_LEN("ST_DISTANCE") }, GEOM_BUILDER(Create_func_distance)},
+ { { STRING_WITH_LEN("ST_ENDPOINT") }, GEOM_BUILDER(Create_func_endpoint)},
+ { { STRING_WITH_LEN("ST_ENVELOPE") }, GEOM_BUILDER(Create_func_envelope)},
+ { { STRING_WITH_LEN("ST_EQUALS") }, GEOM_BUILDER(Create_func_equals)},
+ { { STRING_WITH_LEN("ST_EXTERIORRING") }, GEOM_BUILDER(Create_func_exteriorring)},
+ { { STRING_WITH_LEN("ST_GEOMCOLLFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_GEOMCOLLFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_GEOMETRYCOLLECTIONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_GEOMETRYCOLLECTIONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_GEOMETRYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_GEOMETRYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_GEOMETRYN") }, GEOM_BUILDER(Create_func_geometryn)},
+ { { STRING_WITH_LEN("ST_GEOMETRYTYPE") }, GEOM_BUILDER(Create_func_geometry_type)},
+ { { STRING_WITH_LEN("ST_GEOMFROMGEOJSON") }, GEOM_BUILDER(Create_func_geometry_from_json)},
+ { { STRING_WITH_LEN("ST_GEOMFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_GEOMFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
#ifndef DBUG_OFF
- { { C_STRING_WITH_LEN("ST_GIS_DEBUG") }, GEOM_BUILDER(Create_func_gis_debug)},
+ { { STRING_WITH_LEN("ST_GIS_DEBUG") }, GEOM_BUILDER(Create_func_gis_debug)},
#endif
- { { C_STRING_WITH_LEN("ST_EQUALS") }, GEOM_BUILDER(Create_func_equals)},
- { { C_STRING_WITH_LEN("ST_INTERIORRINGN") }, GEOM_BUILDER(Create_func_interiorringn)},
- { { C_STRING_WITH_LEN("ST_INTERSECTS") }, GEOM_BUILDER(Create_func_intersects)},
- { { C_STRING_WITH_LEN("ST_INTERSECTION") }, GEOM_BUILDER(Create_func_intersection)},
- { { C_STRING_WITH_LEN("ST_ISCLOSED") }, GEOM_BUILDER(Create_func_isclosed)},
- { { C_STRING_WITH_LEN("ST_ISEMPTY") }, GEOM_BUILDER(Create_func_isempty)},
- { { C_STRING_WITH_LEN("ST_ISRING") }, GEOM_BUILDER(Create_func_isring)},
- { { C_STRING_WITH_LEN("ST_ISSIMPLE") }, GEOM_BUILDER(Create_func_issimple)},
- { { C_STRING_WITH_LEN("ST_LENGTH") }, GEOM_BUILDER(Create_func_glength)},
- { { C_STRING_WITH_LEN("ST_LINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_LINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_LINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_LINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_MLINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_MLINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_MPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_MPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_MPOLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_MPOLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_MULTILINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_MULTILINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_MULTIPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_MULTIPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_MULTIPOLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_MULTIPOLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_NUMGEOMETRIES") }, GEOM_BUILDER(Create_func_numgeometries)},
- { { C_STRING_WITH_LEN("ST_NUMINTERIORRINGS") }, GEOM_BUILDER(Create_func_numinteriorring)},
- { { C_STRING_WITH_LEN("ST_NUMPOINTS") }, GEOM_BUILDER(Create_func_numpoints)},
- { { C_STRING_WITH_LEN("ST_OVERLAPS") }, GEOM_BUILDER(Create_func_overlaps)},
- { { C_STRING_WITH_LEN("ST_POINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_POINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_POINTN") }, GEOM_BUILDER(Create_func_pointn)},
- { { C_STRING_WITH_LEN("ST_POINTONSURFACE") }, GEOM_BUILDER(Create_func_pointonsurface)},
- { { C_STRING_WITH_LEN("ST_POLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_POLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_POLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
- { { C_STRING_WITH_LEN("ST_POLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
- { { C_STRING_WITH_LEN("ST_RELATE") }, GEOM_BUILDER(Create_func_relate)},
- { { C_STRING_WITH_LEN("ST_SRID") }, GEOM_BUILDER(Create_func_srid)},
- { { C_STRING_WITH_LEN("ST_STARTPOINT") }, GEOM_BUILDER(Create_func_startpoint)},
- { { C_STRING_WITH_LEN("ST_SYMDIFFERENCE") }, GEOM_BUILDER(Create_func_symdifference)},
- { { C_STRING_WITH_LEN("ST_TOUCHES") }, GEOM_BUILDER(Create_func_touches)},
- { { C_STRING_WITH_LEN("ST_UNION") }, GEOM_BUILDER(Create_func_union)},
- { { C_STRING_WITH_LEN("ST_WITHIN") }, GEOM_BUILDER(Create_func_within)},
- { { C_STRING_WITH_LEN("ST_X") }, GEOM_BUILDER(Create_func_x)},
- { { C_STRING_WITH_LEN("ST_Y") }, GEOM_BUILDER(Create_func_y)},
+ { { STRING_WITH_LEN("ST_EQUALS") }, GEOM_BUILDER(Create_func_equals)},
+ { { STRING_WITH_LEN("ST_INTERIORRINGN") }, GEOM_BUILDER(Create_func_interiorringn)},
+ { { STRING_WITH_LEN("ST_INTERSECTS") }, GEOM_BUILDER(Create_func_intersects)},
+ { { STRING_WITH_LEN("ST_INTERSECTION") }, GEOM_BUILDER(Create_func_intersection)},
+ { { STRING_WITH_LEN("ST_ISCLOSED") }, GEOM_BUILDER(Create_func_isclosed)},
+ { { STRING_WITH_LEN("ST_ISEMPTY") }, GEOM_BUILDER(Create_func_isempty)},
+ { { STRING_WITH_LEN("ST_ISRING") }, GEOM_BUILDER(Create_func_isring)},
+ { { STRING_WITH_LEN("ST_ISSIMPLE") }, GEOM_BUILDER(Create_func_issimple)},
+ { { STRING_WITH_LEN("ST_LENGTH") }, GEOM_BUILDER(Create_func_glength)},
+ { { STRING_WITH_LEN("ST_LINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_LINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_LINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_LINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_MLINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_MLINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_MPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_MPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_MPOLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_MPOLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_MULTILINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_MULTILINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_MULTIPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_MULTIPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_MULTIPOLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_MULTIPOLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_NUMGEOMETRIES") }, GEOM_BUILDER(Create_func_numgeometries)},
+ { { STRING_WITH_LEN("ST_NUMINTERIORRINGS") }, GEOM_BUILDER(Create_func_numinteriorring)},
+ { { STRING_WITH_LEN("ST_NUMPOINTS") }, GEOM_BUILDER(Create_func_numpoints)},
+ { { STRING_WITH_LEN("ST_OVERLAPS") }, GEOM_BUILDER(Create_func_overlaps)},
+ { { STRING_WITH_LEN("ST_POINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_POINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_POINTN") }, GEOM_BUILDER(Create_func_pointn)},
+ { { STRING_WITH_LEN("ST_POINTONSURFACE") }, GEOM_BUILDER(Create_func_pointonsurface)},
+ { { STRING_WITH_LEN("ST_POLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_POLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_POLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+ { { STRING_WITH_LEN("ST_POLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+ { { STRING_WITH_LEN("ST_RELATE") }, GEOM_BUILDER(Create_func_relate)},
+ { { STRING_WITH_LEN("ST_SRID") }, GEOM_BUILDER(Create_func_srid)},
+ { { STRING_WITH_LEN("ST_STARTPOINT") }, GEOM_BUILDER(Create_func_startpoint)},
+ { { STRING_WITH_LEN("ST_SYMDIFFERENCE") }, GEOM_BUILDER(Create_func_symdifference)},
+ { { STRING_WITH_LEN("ST_TOUCHES") }, GEOM_BUILDER(Create_func_touches)},
+ { { STRING_WITH_LEN("ST_UNION") }, GEOM_BUILDER(Create_func_union)},
+ { { STRING_WITH_LEN("ST_WITHIN") }, GEOM_BUILDER(Create_func_within)},
+ { { STRING_WITH_LEN("ST_X") }, GEOM_BUILDER(Create_func_x)},
+ { { STRING_WITH_LEN("ST_Y") }, GEOM_BUILDER(Create_func_y)},
{ { C_STRING_WITH_LEN("ST_DISTANCE_SPHERE") }, GEOM_BUILDER(Create_func_distance_sphere)},
- { { C_STRING_WITH_LEN("SUBSTRING_INDEX") }, BUILDER(Create_func_substr_index)},
- { { C_STRING_WITH_LEN("SUBTIME") }, BUILDER(Create_func_subtime)},
- { { C_STRING_WITH_LEN("TAN") }, BUILDER(Create_func_tan)},
- { { C_STRING_WITH_LEN("TIMEDIFF") }, BUILDER(Create_func_timediff)},
- { { C_STRING_WITH_LEN("TIME_FORMAT") }, BUILDER(Create_func_time_format)},
- { { C_STRING_WITH_LEN("TIME_TO_SEC") }, BUILDER(Create_func_time_to_sec)},
- { { C_STRING_WITH_LEN("TOUCHES") }, GEOM_BUILDER(Create_func_touches)},
- { { C_STRING_WITH_LEN("TO_BASE64") }, BUILDER(Create_func_to_base64)},
- { { C_STRING_WITH_LEN("TO_DAYS") }, BUILDER(Create_func_to_days)},
- { { C_STRING_WITH_LEN("TO_SECONDS") }, BUILDER(Create_func_to_seconds)},
- { { C_STRING_WITH_LEN("UCASE") }, BUILDER(Create_func_ucase)},
- { { C_STRING_WITH_LEN("UNCOMPRESS") }, BUILDER(Create_func_uncompress)},
- { { C_STRING_WITH_LEN("UNCOMPRESSED_LENGTH") }, BUILDER(Create_func_uncompressed_length)},
- { { C_STRING_WITH_LEN("UNHEX") }, BUILDER(Create_func_unhex)},
- { { C_STRING_WITH_LEN("UNIX_TIMESTAMP") }, BUILDER(Create_func_unix_timestamp)},
- { { C_STRING_WITH_LEN("UPDATEXML") }, BUILDER(Create_func_xml_update)},
- { { C_STRING_WITH_LEN("UPPER") }, BUILDER(Create_func_ucase)},
- { { C_STRING_WITH_LEN("UUID") }, BUILDER(Create_func_uuid)},
- { { C_STRING_WITH_LEN("UUID_SHORT") }, BUILDER(Create_func_uuid_short)},
- { { C_STRING_WITH_LEN("VERSION") }, BUILDER(Create_func_version)},
- { { C_STRING_WITH_LEN("WEEKDAY") }, BUILDER(Create_func_weekday)},
- { { C_STRING_WITH_LEN("WEEKOFYEAR") }, BUILDER(Create_func_weekofyear)},
- { { C_STRING_WITH_LEN("WITHIN") }, GEOM_BUILDER(Create_func_within)},
- { { C_STRING_WITH_LEN("X") }, GEOM_BUILDER(Create_func_x)},
- { { C_STRING_WITH_LEN("Y") }, GEOM_BUILDER(Create_func_y)},
- { { C_STRING_WITH_LEN("YEARWEEK") }, BUILDER(Create_func_year_week)},
+ { { STRING_WITH_LEN("SUBSTR_ORACLE") },
+ BUILDER(Create_func_substr_oracle)},
+ { { STRING_WITH_LEN("SUBSTRING_INDEX") }, BUILDER(Create_func_substr_index)},
+ { { STRING_WITH_LEN("SUBTIME") }, BUILDER(Create_func_subtime)},
+ { { STRING_WITH_LEN("TAN") }, BUILDER(Create_func_tan)},
+ { { STRING_WITH_LEN("TIMEDIFF") }, BUILDER(Create_func_timediff)},
+ { { STRING_WITH_LEN("TIME_FORMAT") }, BUILDER(Create_func_time_format)},
+ { { STRING_WITH_LEN("TIME_TO_SEC") }, BUILDER(Create_func_time_to_sec)},
+ { { STRING_WITH_LEN("TOUCHES") }, GEOM_BUILDER(Create_func_touches)},
+ { { STRING_WITH_LEN("TO_BASE64") }, BUILDER(Create_func_to_base64)},
+ { { STRING_WITH_LEN("TO_DAYS") }, BUILDER(Create_func_to_days)},
+ { { STRING_WITH_LEN("TO_SECONDS") }, BUILDER(Create_func_to_seconds)},
+ { { STRING_WITH_LEN("UCASE") }, BUILDER(Create_func_ucase)},
+ { { STRING_WITH_LEN("UNCOMPRESS") }, BUILDER(Create_func_uncompress)},
+ { { STRING_WITH_LEN("UNCOMPRESSED_LENGTH") }, BUILDER(Create_func_uncompressed_length)},
+ { { STRING_WITH_LEN("UNHEX") }, BUILDER(Create_func_unhex)},
+ { { STRING_WITH_LEN("UNIX_TIMESTAMP") }, BUILDER(Create_func_unix_timestamp)},
+ { { STRING_WITH_LEN("UPDATEXML") }, BUILDER(Create_func_xml_update)},
+ { { STRING_WITH_LEN("UPPER") }, BUILDER(Create_func_ucase)},
+ { { STRING_WITH_LEN("UUID") }, BUILDER(Create_func_uuid)},
+ { { STRING_WITH_LEN("UUID_SHORT") }, BUILDER(Create_func_uuid_short)},
+ { { STRING_WITH_LEN("VERSION") }, BUILDER(Create_func_version)},
+ { { STRING_WITH_LEN("WEEKDAY") }, BUILDER(Create_func_weekday)},
+ { { STRING_WITH_LEN("WEEKOFYEAR") }, BUILDER(Create_func_weekofyear)},
+ { { STRING_WITH_LEN("WITHIN") }, GEOM_BUILDER(Create_func_within)},
+ { { STRING_WITH_LEN("X") }, GEOM_BUILDER(Create_func_x)},
+ { { STRING_WITH_LEN("Y") }, GEOM_BUILDER(Create_func_y)},
+ { { STRING_WITH_LEN("YEARWEEK") }, BUILDER(Create_func_year_week)},
{ {0, 0}, NULL}
};
diff --cc sql/sql_show.cc
index 2e02d418210,f8f784bbbad..e7c42cbc8e4
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@@ -62,8 -62,19 +62,21 @@@
#ifdef WITH_PARTITION_STORAGE_ENGINE
#include "ha_partition.h"
#endif
+#include "transaction.h"
+
+
+ #include "lex_symbol.h"
+ #define KEYWORD_SIZE 64
+
+ extern SYMBOL symbols[];
+ extern size_t symbols_length;
+
+ extern SYMBOL sql_functions[];
+ extern size_t sql_functions_length;
+
+ extern Native_func_registry func_array[];
+ extern size_t func_array_length;
+
enum enum_i_s_events_fields
{
ISE_EVENT_CATALOG= 0,
diff --cc storage/innobase/os/os0file.cc
index bba682689a6,884cadaf9f6..811a8c7485a
--- a/storage/innobase/os/os0file.cc
+++ b/storage/innobase/os/os0file.cc
@@@ -5405,10 -5468,33 +5414,31 @@@ fallback
# endif /* HAVE_POSIX_ALLOCATE */
#endif /* _WIN32*/
+ #ifdef _WIN32
+ os_offset_t current_size = os_file_get_size(file);
+ FILE_STORAGE_INFO info;
+ if (GetFileInformationByHandleEx(file, FileStorageInfo, &info,
+ sizeof info)) {
+ if (info.LogicalBytesPerSector) {
+ current_size &= ~os_offset_t(info.LogicalBytesPerSector
+ - 1);
+ }
+ }
+ #else
+ if (fstat(file, &statbuf)) {
+ return false;
+ }
+ os_offset_t current_size = statbuf.st_size
+ & ~os_offset_t(statbuf.st_blksize - 1);
+ #endif
+ if (current_size >= size) {
+ return true;
+ }
+
/* Write up to 1 megabyte at a time. */
- ulint buf_size = ut_min(
- static_cast<ulint>(64),
- static_cast<ulint>(size / UNIV_PAGE_SIZE));
-
- buf_size *= UNIV_PAGE_SIZE;
+ ulint buf_size = ut_min(ulint(64),
+ ulint(size >> srv_page_size_shift))
+ << srv_page_size_shift;
/* Align the buffer for possible raw i/o */
byte* buf2;
1
0
[Commits] 453a1c16628: MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
by psergey 30 Jun '21
by psergey 30 Jun '21
30 Jun '21
revision-id: 453a1c166287a6a680d6aca235ccb497b0224bfa (mariadb-10.2.39-33-g453a1c16628)
parent(s): 8147d2e6183a1a4a4f3db2884966f5da2d17678c
author: Sergei Petrunia
committer: Sergei Petrunia
timestamp: 2021-06-30 13:47:21 +0300
message:
MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
Consider a query of the form:
select ... from (select item2 as COL1) as T where COL1=123
Condition pushdown into derived table will try to push "COL1=123" condition
down into table T.
The process of pushdown involves "substituting" the item, that is,
replacing Item_field("T.COL1") with its "producing item" item2.
In order to use item2, one needs to clone it (call Item::build_clone).
If the item is not cloneable (e.g. Item_func_sp is not), the pushdown
process will fail and nothing at all will be pushed.
Fixed by introducing transform_condition_or_part() which will try to apply
the transformation for as many parts of condition as possible. The parts of
condition that couldn't be transformed are dropped.
---
mysql-test/r/derived_cond_pushdown.result | 146 ++++++++++++++++++++++++++++++
mysql-test/t/derived_cond_pushdown.test | 70 ++++++++++++++
sql/sql_derived.cc | 79 ++++++++++++++--
3 files changed, 289 insertions(+), 6 deletions(-)
diff --git a/mysql-test/r/derived_cond_pushdown.result b/mysql-test/r/derived_cond_pushdown.result
index 28532ae88a4..f5ef3c3a84d 100644
--- a/mysql-test/r/derived_cond_pushdown.result
+++ b/mysql-test/r/derived_cond_pushdown.result
@@ -10673,4 +10673,150 @@ Warnings:
Note 1003 select `v2`.`a` AS `a`,`v2`.`f` AS `f`,`v2`.`g` AS `g` from `test`.`v2` where `v2`.`f` = `v2`.`a` and `v2`.`g` = `v2`.`a`
drop view v1,v2;
drop table t1;
+#
+# MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+#
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+create table t1 (
+pk int primary key,
+a int,
+b int,
+key(a)
+);
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+insert into t1 select a,a,a from t3;
+create view v1 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v2 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+explain select * from v3 where col1=123;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using where
+2 DERIVED t1 ref a a 5 const 1
+3 UNION t1 ref a a 5 const 1
+# This must use ref accesses for reading table t1, not full scans:
+explain format=json
+select * from v3 where col1=123 and col2=321;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v3.col1 = 123 and v3.col2 = 321",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
+#
+# Another testcase, with pushdown through GROUP BY
+#
+create table t1 (a int, b int);
+insert into t1 values (1,1),(2,2),(3,3);
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+create view v2(a, a2, s) as
+select a, f1(a), sum(b) from t1 group by a, f1(a);
+# Here,
+# "(s+1) > 10" will be pushed into HAVING
+# "a > 1" will be pushed all the way to the table scan on t1
+# "a2>123" will be pushed into HAVING (as it refers to an SP call which
+# prevents pushing it to the WHERE)
+explain format=json
+select * from v2 where (s+1) > 10 AND a > 1 and a2>123;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v2.s + 1 > 10 and v2.a > 1 and v2.a2 > 123",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "s + 1 > 10 and a2 > 123",
+ "filesort": {
+ "sort_key": "t1.a, f1(t1.a)",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.a > 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop view v2;
+drop function f1;
+drop table t1;
# End of 10.2 tests
diff --git a/mysql-test/t/derived_cond_pushdown.test b/mysql-test/t/derived_cond_pushdown.test
index 58f38ac1e5a..9b7658a725e 100644
--- a/mysql-test/t/derived_cond_pushdown.test
+++ b/mysql-test/t/derived_cond_pushdown.test
@@ -2237,4 +2237,74 @@ eval explain extended $q2;
drop view v1,v2;
drop table t1;
+--echo #
+--echo # MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+--echo #
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+
+create table t1 (
+ pk int primary key,
+ a int,
+ b int,
+ key(a)
+);
+
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+
+insert into t1 select a,a,a from t3;
+
+create view v1 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+
+create view v2 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+
+explain select * from v3 where col1=123;
+
+--echo # This must use ref accesses for reading table t1, not full scans:
+explain format=json
+select * from v3 where col1=123 and col2=321;
+
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
+
+--echo #
+--echo # Another testcase, with pushdown through GROUP BY
+--echo #
+create table t1 (a int, b int);
+insert into t1 values (1,1),(2,2),(3,3);
+
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+
+create view v2(a, a2, s) as
+select a, f1(a), sum(b) from t1 group by a, f1(a);
+
+--echo # Here,
+--echo # "(s+1) > 10" will be pushed into HAVING
+--echo # "a > 1" will be pushed all the way to the table scan on t1
+--echo # "a2>123" will be pushed into HAVING (as it refers to an SP call which
+--echo # prevents pushing it to the WHERE)
+explain format=json
+select * from v2 where (s+1) > 10 AND a > 1 and a2>123;
+
+drop view v2;
+drop function f1;
+drop table t1;
--echo # End of 10.2 tests
diff --git a/sql/sql_derived.cc b/sql/sql_derived.cc
index 632baf4bc5b..30bffeb7581 100644
--- a/sql/sql_derived.cc
+++ b/sql/sql_derived.cc
@@ -1192,6 +1192,68 @@ bool mysql_derived_reinit(THD *thd, LEX *lex, TABLE_LIST *derived)
}
+/*
+ @brief
+ Given condition cond and transformer+argument, try transforming as many
+ conjuncts as possible.
+
+ @detail
+ The motivation of this function is to convert the condition that's being
+ pushed into a WHERE clause with derived_field_transformer_for_where or
+ with derived_grouping_field_transformer_for_where.
+ The transformer may fail for some sub-condition, in this case we want to
+ convert the most restrictive part of the condition that can be pushed.
+
+ This function only does it for top-level AND: conjuncts that could not be
+ converted are dropped.
+
+ @return
+ Converted condition, or NULL if nothing could be converted
+*/
+
+static
+Item *transform_condition_or_part(THD *thd,
+ Item *cond,
+ Item_transformer transformer,
+ uchar *arg)
+{
+ if (cond->type() != Item::COND_ITEM ||
+ ((Item_cond*) cond)->functype() != Item_func::COND_AND_FUNC)
+ {
+ Item *new_item= cond->transform(thd, transformer, arg);
+ // Indicate that the condition is not pushable
+ if (!new_item)
+ cond->clear_extraction_flag();
+ return new_item;
+ }
+
+ List_iterator<Item> li(*((Item_cond*) cond)->argument_list());
+ Item *item;
+ while ((item=li++))
+ {
+ Item *new_item= item->transform(thd, transformer, arg);
+ if (!new_item)
+ {
+ // Indicate that the condition is not pushable
+ item->clear_extraction_flag();
+ li.remove();
+ }
+ else
+ li.replace(new_item);
+ }
+
+ switch (((Item_cond*) cond)->argument_list()->elements)
+ {
+ case 0:
+ return NULL;
+ case 1:
+ return ((Item_cond*) cond)->argument_list()->head();
+ default:
+ return cond;
+ }
+}
+
+
/**
@brief
Extract the condition depended on derived table/view and pushed it there
@@ -1287,9 +1349,11 @@ bool pushdown_cond_for_derived(THD *thd, Item *cond, TABLE_LIST *derived)
if (!sl->join->group_list && !sl->with_sum_func)
{
/* extracted_cond_copy is pushed into where of sl */
- extracted_cond_copy= extracted_cond_copy->transform(thd,
- &Item::derived_field_transformer_for_where,
- (uchar*) sl);
+ extracted_cond_copy=
+ transform_condition_or_part(thd,
+ extracted_cond_copy,
+ &Item::derived_field_transformer_for_where,
+ (uchar*)sl);
if (extracted_cond_copy)
{
extracted_cond_copy->walk(
@@ -1316,9 +1380,12 @@ bool pushdown_cond_for_derived(THD *thd, Item *cond, TABLE_LIST *derived)
pushed into the where clause of sl to make them usable in the new context
*/
if (cond_over_grouping_fields)
- cond_over_grouping_fields= cond_over_grouping_fields->transform(thd,
- &Item::derived_grouping_field_transformer_for_where,
- (uchar*) sl);
+ {
+ cond_over_grouping_fields=
+ transform_condition_or_part(thd, cond_over_grouping_fields,
+ &Item::derived_grouping_field_transformer_for_where,
+ (uchar*) sl);
+ }
if (cond_over_grouping_fields)
{
1
0
[Commits] ebc5a2b9178: MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
by psergey 30 Jun '21
by psergey 30 Jun '21
30 Jun '21
revision-id: ebc5a2b917829363dcc9499523f249c87f990123 (mariadb-10.2.39-33-gebc5a2b9178)
parent(s): 8147d2e6183a1a4a4f3db2884966f5da2d17678c
author: Sergei Petrunia
committer: Sergei Petrunia
timestamp: 2021-06-30 13:47:01 +0300
message:
MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
Variant 3, the "handle failures at conversion" approach.
Consider a query in form:
select ... from (select item2 as COL1) as T where COL1=123
Condition pushdown into derived table will try to push "COL1=123" condition
down into table T.
The process of pushdown involves "substituting" the item, that is,
replacing Item_field("T.COL1") with its "producing item" item2.
In order to use item2, one needs to clone it (call Item::build_clone).
If the item is not cloneable (e.g. Item_func_sp is not), the pushdown
process will fail and nothing at all will be pushed.
Fixed by introducing transform_condition_or_part() which will try to apply
the transformation for as many parts of condition as possible. The parts of
condition that couldn't be transformed are dropped.
---
mysql-test/r/derived_cond_pushdown.result | 146 ++++++++++++++++++++++++++++++
mysql-test/t/derived_cond_pushdown.test | 70 ++++++++++++++
sql/sql_derived.cc | 78 ++++++++++++++--
3 files changed, 288 insertions(+), 6 deletions(-)
diff --git a/mysql-test/r/derived_cond_pushdown.result b/mysql-test/r/derived_cond_pushdown.result
index 28532ae88a4..f5ef3c3a84d 100644
--- a/mysql-test/r/derived_cond_pushdown.result
+++ b/mysql-test/r/derived_cond_pushdown.result
@@ -10673,4 +10673,150 @@ Warnings:
Note 1003 select `v2`.`a` AS `a`,`v2`.`f` AS `f`,`v2`.`g` AS `g` from `test`.`v2` where `v2`.`f` = `v2`.`a` and `v2`.`g` = `v2`.`a`
drop view v1,v2;
drop table t1;
+#
+# MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+#
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+create table t1 (
+pk int primary key,
+a int,
+b int,
+key(a)
+);
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+insert into t1 select a,a,a from t3;
+create view v1 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v2 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+explain select * from v3 where col1=123;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using where
+2 DERIVED t1 ref a a 5 const 1
+3 UNION t1 ref a a 5 const 1
+# This must use ref accesses for reading table t1, not full scans:
+explain format=json
+select * from v3 where col1=123 and col2=321;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v3.col1 = 123 and v3.col2 = 321",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
+#
+# Another testcase, with pushdown through GROUP BY
+#
+create table t1 (a int, b int);
+insert into t1 values (1,1),(2,2),(3,3);
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+create view v2(a, a2, s) as
+select a, f1(a), sum(b) from t1 group by a, f1(a);
+# Here,
+# "(s+1) > 10" will be pushed into HAVING
+# "a > 1" will be pushed all the way to the table scan on t1
+# "a2>123" will be pushed into HAVING (as it refers to an SP call which
+# prevents pushing it to the WHERE)
+explain format=json
+select * from v2 where (s+1) > 10 AND a > 1 and a2>123;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v2.s + 1 > 10 and v2.a > 1 and v2.a2 > 123",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "s + 1 > 10 and a2 > 123",
+ "filesort": {
+ "sort_key": "t1.a, f1(t1.a)",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.a > 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop view v2;
+drop function f1;
+drop table t1;
# End of 10.2 tests
diff --git a/mysql-test/t/derived_cond_pushdown.test b/mysql-test/t/derived_cond_pushdown.test
index 58f38ac1e5a..9b7658a725e 100644
--- a/mysql-test/t/derived_cond_pushdown.test
+++ b/mysql-test/t/derived_cond_pushdown.test
@@ -2237,4 +2237,74 @@ eval explain extended $q2;
drop view v1,v2;
drop table t1;
+--echo #
+--echo # MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+--echo #
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+
+create table t1 (
+ pk int primary key,
+ a int,
+ b int,
+ key(a)
+);
+
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+
+insert into t1 select a,a,a from t3;
+
+create view v1 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+
+create view v2 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+
+explain select * from v3 where col1=123;
+
+--echo # This must use ref accesses for reading table t1, not full scans:
+explain format=json
+select * from v3 where col1=123 and col2=321;
+
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
+
+--echo #
+--echo # Another testcase, with pushdown through GROUP BY
+--echo #
+create table t1 (a int, b int);
+insert into t1 values (1,1),(2,2),(3,3);
+
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+
+create view v2(a, a2, s) as
+select a, f1(a), sum(b) from t1 group by a, f1(a);
+
+--echo # Here,
+--echo # "(s+1) > 10" will be pushed into HAVING
+--echo # "a > 1" will be pushed all the way to the table scan on t1
+--echo # "a2>123" will be pushed into HAVING (as it refers to an SP call which
+--echo # prevents pushing it to the WHERE)
+explain format=json
+select * from v2 where (s+1) > 10 AND a > 1 and a2>123;
+
+drop view v2;
+drop function f1;
+drop table t1;
--echo # End of 10.2 tests
diff --git a/sql/sql_derived.cc b/sql/sql_derived.cc
index 632baf4bc5b..4ee95eb0516 100644
--- a/sql/sql_derived.cc
+++ b/sql/sql_derived.cc
@@ -1192,6 +1192,67 @@ bool mysql_derived_reinit(THD *thd, LEX *lex, TABLE_LIST *derived)
}
+/*
+ @brief
+ Given condition cond and transformer+argument, try transforming as many
+ disjuncts as possible.
+
+ @detail
+ The motivation of this function is to convert the condition that's being
+ pushed into a WHERE clause with derived_field_transformer_for_where.
+ The transformer may fail for some sub-condition, in this case we want to
+ convert the most restrictive part of the condition that's possible
+
+ This function only does it for top-level AND: disjuncts that could not be
+ converted are dropped.
+
+ @return
+ Converted condition, or NULL if nothing could be converted
+*/
+
+static
+Item *transform_condition_or_part(THD *thd,
+ Item *cond,
+ Item_transformer transformer,
+ uchar *arg)
+{
+ if (cond->type() != Item::COND_ITEM ||
+ ((Item_cond*) cond)->functype() != Item_func::COND_AND_FUNC)
+ {
+ Item *new_item= cond->transform(thd, transformer, arg);
+ // Indicate that the condition is not pushable
+ if (!new_item)
+ cond->clear_extraction_flag();
+ return new_item;
+ }
+
+ List_iterator<Item> li(*((Item_cond*) cond)->argument_list());
+ Item *item;
+ while ((item=li++))
+ {
+ Item *new_item= item->transform(thd, transformer, arg);
+ if (!new_item)
+ {
+ // Indicate that the condition is not pushable
+ item->clear_extraction_flag();
+ li.remove();
+ }
+ else
+ li.replace(new_item);
+ }
+
+ switch (((Item_cond*) cond)->argument_list()->elements)
+ {
+ case 0:
+ return NULL;
+ case 1:
+ return ((Item_cond*) cond)->argument_list()->head();
+ default:
+ return cond;
+ }
+}
+
+
/**
@brief
Extract the condition depended on derived table/view and pushed it there
@@ -1287,9 +1348,11 @@ bool pushdown_cond_for_derived(THD *thd, Item *cond, TABLE_LIST *derived)
if (!sl->join->group_list && !sl->with_sum_func)
{
/* extracted_cond_copy is pushed into where of sl */
- extracted_cond_copy= extracted_cond_copy->transform(thd,
- &Item::derived_field_transformer_for_where,
- (uchar*) sl);
+ extracted_cond_copy=
+ transform_condition_or_part(thd,
+ extracted_cond_copy,
+ &Item::derived_field_transformer_for_where,
+ (uchar*)sl);
if (extracted_cond_copy)
{
extracted_cond_copy->walk(
@@ -1316,9 +1379,12 @@ bool pushdown_cond_for_derived(THD *thd, Item *cond, TABLE_LIST *derived)
pushed into the where clause of sl to make them usable in the new context
*/
if (cond_over_grouping_fields)
- cond_over_grouping_fields= cond_over_grouping_fields->transform(thd,
- &Item::derived_grouping_field_transformer_for_where,
- (uchar*) sl);
+ {
+ cond_over_grouping_fields=
+ transform_condition_or_part(thd, cond_over_grouping_fields,
+ &Item::derived_grouping_field_transformer_for_where,
+ (uchar*) sl);
+ }
if (cond_over_grouping_fields)
{
1
0
[Commits] 658cdcd3f2b: MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
by psergey 29 Jun '21
by psergey 29 Jun '21
29 Jun '21
revision-id: 658cdcd3f2bc0e2eb3e0cfc5efcb96b964da95eb (mariadb-10.2.39-33-g658cdcd3f2b)
parent(s): 8147d2e6183a1a4a4f3db2884966f5da2d17678c
author: Sergei Petrunia
committer: Sergei Petrunia
timestamp: 2021-06-29 16:31:28 +0300
message:
MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
Variant 3, the "handle failures at conversion" approach.
Consider a query in form:
select ... from (select item2 as COL1) as T where COL1=123
Condition pushdown into derived table will try to push "COL1=123" condition
down into table T.
The process of pushdown involves "substituting" the item, that is,
replacing Item_field("T.COL1") with its "producing item" item2.
In order to use item2, one needs to clone it (call Item::build_clone).
If the item is not cloneable (e.g. Item_func_sp is not), the pushdown
process will fail and nothing at all will be pushed.
Fixed by introducing transform_condition_or_part() which will try to apply
the transformation for as many parts of condition as possible. The parts of
condition that couldn't be transformed are dropped.
---
mysql-test/r/derived_cond_pushdown.result | 146 ++++++++++++++++++++++++++++++
mysql-test/t/derived_cond_pushdown.test | 70 ++++++++++++++
sql/sql_derived.cc | 78 ++++++++++++++--
3 files changed, 288 insertions(+), 6 deletions(-)
diff --git a/mysql-test/r/derived_cond_pushdown.result b/mysql-test/r/derived_cond_pushdown.result
index 28532ae88a4..f5ef3c3a84d 100644
--- a/mysql-test/r/derived_cond_pushdown.result
+++ b/mysql-test/r/derived_cond_pushdown.result
@@ -10673,4 +10673,150 @@ Warnings:
Note 1003 select `v2`.`a` AS `a`,`v2`.`f` AS `f`,`v2`.`g` AS `g` from `test`.`v2` where `v2`.`f` = `v2`.`a` and `v2`.`g` = `v2`.`a`
drop view v1,v2;
drop table t1;
+#
+# MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+#
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+create table t1 (
+pk int primary key,
+a int,
+b int,
+key(a)
+);
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+insert into t1 select a,a,a from t3;
+create view v1 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v2 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+explain select * from v3 where col1=123;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using where
+2 DERIVED t1 ref a a 5 const 1
+3 UNION t1 ref a a 5 const 1
+# This must use ref accesses for reading table t1, not full scans:
+explain format=json
+select * from v3 where col1=123 and col2=321;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v3.col1 = 123 and v3.col2 = 321",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
+#
+# Another testcase, with pushdown through GROUP BY
+#
+create table t1 (a int, b int);
+insert into t1 values (1,1),(2,2),(3,3);
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+create view v2(a, a2, s) as
+select a, f1(a), sum(b) from t1 group by a, f1(a);
+# Here,
+# "(s+1) > 10" will be pushed into HAVING
+# "a > 1" will be pushed all the way to the table scan on t1
+# "a2>123" will be pushed into HAVING (as it refers to an SP call which
+# prevents pushing it to the WHERE)
+explain format=json
+select * from v2 where (s+1) > 10 AND a > 1 and a2>123;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "v2.s + 1 > 10 and v2.a > 1 and v2.a2 > 123",
+ "materialized": {
+ "query_block": {
+ "select_id": 2,
+ "having_condition": "s + 1 > 10 and a2 > 123",
+ "filesort": {
+ "sort_key": "t1.a, f1(t1.a)",
+ "temporary_table": {
+ "table": {
+ "table_name": "t1",
+ "access_type": "ALL",
+ "rows": 3,
+ "filtered": 100,
+ "attached_condition": "t1.a > 1"
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+drop view v2;
+drop function f1;
+drop table t1;
# End of 10.2 tests
diff --git a/mysql-test/t/derived_cond_pushdown.test b/mysql-test/t/derived_cond_pushdown.test
index 58f38ac1e5a..9b7658a725e 100644
--- a/mysql-test/t/derived_cond_pushdown.test
+++ b/mysql-test/t/derived_cond_pushdown.test
@@ -2237,4 +2237,74 @@ eval explain extended $q2;
drop view v1,v2;
drop table t1;
+--echo #
+--echo # MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+--echo #
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+
+create table t1 (
+ pk int primary key,
+ a int,
+ b int,
+ key(a)
+);
+
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+
+insert into t1 select a,a,a from t3;
+
+create view v1 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+
+create view v2 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+
+explain select * from v3 where col1=123;
+
+--echo # This must use ref accesses for reading table t1, not full scans:
+explain format=json
+select * from v3 where col1=123 and col2=321;
+
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
+
+--echo #
+--echo # Another testcase, with pushdown through GROUP BY
+--echo #
+create table t1 (a int, b int);
+insert into t1 values (1,1),(2,2),(3,3);
+
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+
+create view v2(a, a2, s) as
+select a, f1(a), sum(b) from t1 group by a, f1(a);
+
+--echo # Here,
+--echo # "(s+1) > 10" will be pushed into HAVING
+--echo # "a > 1" will be pushed all the way to the table scan on t1
+--echo # "a2>123" will be pushed into HAVING (as it refers to an SP call which
+--echo # prevents pushing it to the WHERE)
+explain format=json
+select * from v2 where (s+1) > 10 AND a > 1 and a2>123;
+
+drop view v2;
+drop function f1;
+drop table t1;
--echo # End of 10.2 tests
diff --git a/sql/sql_derived.cc b/sql/sql_derived.cc
index 632baf4bc5b..4ee95eb0516 100644
--- a/sql/sql_derived.cc
+++ b/sql/sql_derived.cc
@@ -1192,6 +1192,67 @@ bool mysql_derived_reinit(THD *thd, LEX *lex, TABLE_LIST *derived)
}
+/*
+ @brief
+ Given condition cond and transformer+argument, try transforming as many
+ disjuncts as possible.
+
+ @detail
+ The motivation of this function is to convert the condition that's being
+ pushed into a WHERE clause with derived_field_transformer_for_where.
+ The transformer may fail for some sub-condition, in this case we want to
+ convert the most restrictive part of the condition that's possible
+
+ This function only does it for top-level AND: disjuncts that could not be
+ converted are dropped.
+
+ @return
+ Converted condition, or NULL if nothing could be converted
+*/
+
+static
+Item *transform_condition_or_part(THD *thd,
+ Item *cond,
+ Item_transformer transformer,
+ uchar *arg)
+{
+ if (cond->type() != Item::COND_ITEM ||
+ ((Item_cond*) cond)->functype() != Item_func::COND_AND_FUNC)
+ {
+ Item *new_item= cond->transform(thd, transformer, arg);
+ // Indicate that the condition is not pushable
+ if (!new_item)
+ cond->clear_extraction_flag();
+ return new_item;
+ }
+
+ List_iterator<Item> li(*((Item_cond*) cond)->argument_list());
+ Item *item;
+ while ((item=li++))
+ {
+ Item *new_item= item->transform(thd, transformer, arg);
+ if (!new_item)
+ {
+ // Indicate that the condition is not pushable
+ item->clear_extraction_flag();
+ li.remove();
+ }
+ else
+ li.replace(new_item);
+ }
+
+ switch (((Item_cond*) cond)->argument_list()->elements)
+ {
+ case 0:
+ return NULL;
+ case 1:
+ return ((Item_cond*) cond)->argument_list()->head();
+ default:
+ return cond;
+ }
+}
+
+
/**
@brief
Extract the condition depended on derived table/view and pushed it there
@@ -1287,9 +1348,11 @@ bool pushdown_cond_for_derived(THD *thd, Item *cond, TABLE_LIST *derived)
if (!sl->join->group_list && !sl->with_sum_func)
{
/* extracted_cond_copy is pushed into where of sl */
- extracted_cond_copy= extracted_cond_copy->transform(thd,
- &Item::derived_field_transformer_for_where,
- (uchar*) sl);
+ extracted_cond_copy=
+ transform_condition_or_part(thd,
+ extracted_cond_copy,
+ &Item::derived_field_transformer_for_where,
+ (uchar*)sl);
if (extracted_cond_copy)
{
extracted_cond_copy->walk(
@@ -1316,9 +1379,12 @@ bool pushdown_cond_for_derived(THD *thd, Item *cond, TABLE_LIST *derived)
pushed into the where clause of sl to make them usable in the new context
*/
if (cond_over_grouping_fields)
- cond_over_grouping_fields= cond_over_grouping_fields->transform(thd,
- &Item::derived_grouping_field_transformer_for_where,
- (uchar*) sl);
+ {
+ cond_over_grouping_fields=
+ transform_condition_or_part(thd, cond_over_grouping_fields,
+ &Item::derived_grouping_field_transformer_for_where,
+ (uchar*) sl);
+ }
if (cond_over_grouping_fields)
{
1
0
27 Jun '21
revision-id: 4e4f742ed7987ee52a34618d2ea3731e5e198ed8 (mariadb-10.2.31-1027-g4e4f742)
parent(s): 8b3f816cab30eadd574b975d11c9e525a0b1691e
author: Igor Babaev
committer: Igor Babaev
timestamp: 2021-06-26 23:11:10 -0700
message:
Adjusted test results after the fix for MDEV-20411 (2)
---
mysql-test/suite/funcs_1/r/myisam_views-big.result | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/mysql-test/suite/funcs_1/r/myisam_views-big.result b/mysql-test/suite/funcs_1/r/myisam_views-big.result
index a1d59e1..d3227d8 100644
--- a/mysql-test/suite/funcs_1/r/myisam_views-big.result
+++ b/mysql-test/suite/funcs_1/r/myisam_views-big.result
@@ -4054,11 +4054,11 @@ CREATE VIEW v1 or REPLACE AS Select * from tb2 my_table;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'or REPLACE AS Select * from tb2 my_table' at line 1
CREATE VIEW v1 WITH CASCADED CHECK OPTION AS Select *
from tb2 my_table limit 50;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION AS Select *
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION AS Select *
from tb2 my_table limit 50' at line 1
CREATE VIEW v1 WITH LOCAL CHECK OPTION AS Select *
from tb2 my_table limit 50;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'LOCAL CHECK OPTION AS Select *
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH LOCAL CHECK OPTION AS Select *
from tb2 my_table limit 50' at line 1
SELECT * FROM tb2 my_table CREATE VIEW As v1;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CREATE VIEW As v1' at line 1
@@ -4088,7 +4088,7 @@ FROM test.tb2 my_table CHECK OPTION WITH CASCADED;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CHECK OPTION WITH CASCADED' at line 2
CREATE OR REPLACE VIEW v1 WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table' at line 1
CREATE OR REPLACE AS SELECT F59, F60
FROM test.tb2 my_table VIEW v1 WITH CASCADED CHECK OPTION;
@@ -4117,7 +4117,7 @@ FROM test.tb2 my_table CHECK OPTION WITH LOCAL;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CHECK OPTION WITH LOCAL' at line 2
CREATE OR REPLACE VIEW v1 WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table' at line 1
CREATE OR REPLACE AS SELECT F59, F60
FROM test.tb2 my_table VIEW v1 WITH LOCAL CHECK OPTION;
1
0
26 Jun '21
revision-id: 8b3f816cab30eadd574b975d11c9e525a0b1691e (mariadb-10.2.31-1026-g8b3f816)
parent(s): 12c80df4825955253a1a442098dbceb2a3e59971
author: Igor Babaev
committer: Igor Babaev
timestamp: 2021-06-26 08:51:17 -0700
message:
Adjusted test results after the fix for MDEV-20411
---
mysql-test/suite/funcs_1/r/innodb_views.result | 8 ++++----
mysql-test/suite/funcs_1/r/memory_views.result | 8 ++++----
mysql-test/suite/funcs_1/r/storedproc.result | 11 +++++------
mysql-test/suite/innodb_fts/r/fulltext.result | 2 +-
4 files changed, 14 insertions(+), 15 deletions(-)
diff --git a/mysql-test/suite/funcs_1/r/innodb_views.result b/mysql-test/suite/funcs_1/r/innodb_views.result
index 1316988..5e4b008 100644
--- a/mysql-test/suite/funcs_1/r/innodb_views.result
+++ b/mysql-test/suite/funcs_1/r/innodb_views.result
@@ -3551,11 +3551,11 @@ CREATE VIEW v1 or REPLACE AS Select * from tb2 my_table;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'or REPLACE AS Select * from tb2 my_table' at line 1
CREATE VIEW v1 WITH CASCADED CHECK OPTION AS Select *
from tb2 my_table limit 50;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION AS Select *
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION AS Select *
from tb2 my_table limit 50' at line 1
CREATE VIEW v1 WITH LOCAL CHECK OPTION AS Select *
from tb2 my_table limit 50;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'LOCAL CHECK OPTION AS Select *
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH LOCAL CHECK OPTION AS Select *
from tb2 my_table limit 50' at line 1
SELECT * FROM tb2 my_table CREATE VIEW As v1;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CREATE VIEW As v1' at line 1
@@ -3585,7 +3585,7 @@ FROM test.tb2 my_table CHECK OPTION WITH CASCADED;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CHECK OPTION WITH CASCADED' at line 2
CREATE OR REPLACE VIEW v1 WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table' at line 1
CREATE OR REPLACE AS SELECT F59, F60
FROM test.tb2 my_table VIEW v1 WITH CASCADED CHECK OPTION;
@@ -3614,7 +3614,7 @@ FROM test.tb2 my_table CHECK OPTION WITH LOCAL;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CHECK OPTION WITH LOCAL' at line 2
CREATE OR REPLACE VIEW v1 WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table' at line 1
CREATE OR REPLACE AS SELECT F59, F60
FROM test.tb2 my_table VIEW v1 WITH LOCAL CHECK OPTION;
diff --git a/mysql-test/suite/funcs_1/r/memory_views.result b/mysql-test/suite/funcs_1/r/memory_views.result
index 9f3fbd7..acd0425 100644
--- a/mysql-test/suite/funcs_1/r/memory_views.result
+++ b/mysql-test/suite/funcs_1/r/memory_views.result
@@ -3552,11 +3552,11 @@ CREATE VIEW v1 or REPLACE AS Select * from tb2 my_table;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'or REPLACE AS Select * from tb2 my_table' at line 1
CREATE VIEW v1 WITH CASCADED CHECK OPTION AS Select *
from tb2 my_table limit 50;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION AS Select *
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION AS Select *
from tb2 my_table limit 50' at line 1
CREATE VIEW v1 WITH LOCAL CHECK OPTION AS Select *
from tb2 my_table limit 50;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'LOCAL CHECK OPTION AS Select *
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH LOCAL CHECK OPTION AS Select *
from tb2 my_table limit 50' at line 1
SELECT * FROM tb2 my_table CREATE VIEW As v1;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CREATE VIEW As v1' at line 1
@@ -3586,7 +3586,7 @@ FROM test.tb2 my_table CHECK OPTION WITH CASCADED;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CHECK OPTION WITH CASCADED' at line 2
CREATE OR REPLACE VIEW v1 WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table' at line 1
CREATE OR REPLACE AS SELECT F59, F60
FROM test.tb2 my_table VIEW v1 WITH CASCADED CHECK OPTION;
@@ -3615,7 +3615,7 @@ FROM test.tb2 my_table CHECK OPTION WITH LOCAL;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CHECK OPTION WITH LOCAL' at line 2
CREATE OR REPLACE VIEW v1 WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CASCADED CHECK OPTION
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH CASCADED CHECK OPTION
AS SELECT F59, F60 FROM test.tb2 my_table' at line 1
CREATE OR REPLACE AS SELECT F59, F60
FROM test.tb2 my_table VIEW v1 WITH LOCAL CHECK OPTION;
diff --git a/mysql-test/suite/funcs_1/r/storedproc.result b/mysql-test/suite/funcs_1/r/storedproc.result
index 516ea98..64573ed 100644
--- a/mysql-test/suite/funcs_1/r/storedproc.result
+++ b/mysql-test/suite/funcs_1/r/storedproc.result
@@ -2807,7 +2807,7 @@ ERROR 42000: You have an error in your SQL syntax; check the manual that corresp
SELECT * from t1 where f2=f1' at line 1
CREATE PROCEDURE with()
SELECT * from t1 where f2=f1;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '()
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'with()
SELECT * from t1 where f2=f1' at line 1
CREATE PROCEDURE write()
SELECT * from t1 where f2=f1;
@@ -9219,7 +9219,7 @@ CREATE PROCEDURE sp1()
BEGIN
declare with char;
END//
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'char;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'with char;
END' at line 3
DROP PROCEDURE IF EXISTS sp1;
Warnings:
@@ -11547,9 +11547,8 @@ BEGIN
declare with condition for sqlstate '02000';
declare exit handler for with set @var2 = 1;
END//
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'condition for sqlstate '02000';
-declare exit handler for with set @var2 = 1;
-END' at line 3
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'with condition for sqlstate '02000';
+declare exit handler for with set @var2 ...' at line 3
DROP PROCEDURE IF EXISTS sp1;
Warnings:
Note 1305 PROCEDURE db_storedproc.sp1 does not exist
@@ -13649,7 +13648,7 @@ CREATE PROCEDURE sp1( )
BEGIN
declare with handler for sqlstate '02000' set @var2 = 1;
END//
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'handler for sqlstate '02000' set @var2 = 1;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'with handler for sqlstate '02000' set @var2 = 1;
END' at line 3
DROP PROCEDURE IF EXISTS sp1;
Warnings:
diff --git a/mysql-test/suite/innodb_fts/r/fulltext.result b/mysql-test/suite/innodb_fts/r/fulltext.result
index 90deb48..1e5a83f 100644
--- a/mysql-test/suite/innodb_fts/r/fulltext.result
+++ b/mysql-test/suite/innodb_fts/r/fulltext.result
@@ -56,7 +56,7 @@ Only MyISAM tables support collections
MySQL has now support for full-text search
Full-text search in MySQL implements vector space model
select * from t1 where MATCH(a,b) AGAINST ("indexes" IN BOOLEAN MODE WITH QUERY EXPANSION);
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'QUERY EXPANSION)' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH QUERY EXPANSION)' at line 1
explain select * from t1 where MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
1
0
[Commits] 2a2b17c: MDEV-20411 Procedure containing CTE incorrectly stored in mysql.proc
by IgorBabaev 26 Jun '21
by IgorBabaev 26 Jun '21
26 Jun '21
revision-id: 2a2b17ce6dd1a61cd6d26af8211dc93c339956f1 (mariadb-10.2.31-1024-g2a2b17c)
parent(s): 9258cfa4b469ab0d841e32ced7e501e04043637f
author: Igor Babaev
committer: Igor Babaev
timestamp: 2021-06-25 18:03:29 -0700
message:
MDEV-20411 Procedure containing CTE incorrectly stored in mysql.proc
If the first token of the body of a stored procedure was 'WITH' then
the beginning of the body was determined incorrectly and that token was
missing in the string representing the body of the SP in mysql.proc. As a
resultnany call of such procedure failed as the string representing the
body could not be parsed.
The patch corrects the code of the functions get_tok_start() and
get_cpp_tok_start() of the class Lex_input_stream to make them take into
account look ahead tokens. The patch is needed only for 10.2 as this
problem has neen resolved in 10.3+.
---
mysql-test/r/cte_nonrecursive.result | 55 ++++++++++++++++++++++++++++++++++++
mysql-test/r/fulltext.result | 2 +-
mysql-test/t/cte_nonrecursive.test | 29 +++++++++++++++++++
sql/sql_lex.h | 4 +--
4 files changed, 87 insertions(+), 3 deletions(-)
diff --git a/mysql-test/r/cte_nonrecursive.result b/mysql-test/r/cte_nonrecursive.result
index 7c6c6e8..c1d7fd0 100644
--- a/mysql-test/r/cte_nonrecursive.result
+++ b/mysql-test/r/cte_nonrecursive.result
@@ -1964,4 +1964,59 @@ call p1();
ERROR 42S22: Unknown column 'a' in 'field list'
drop procedure p1;
drop table t1,t2;
+#
+# MDEV-20411: SP containing only one SELECT with WITH clause
+#
+create procedure sp1 ()
+with cte as (select 1 as a) select * from cte;
+call sp1();
+a
+1
+call sp1();
+a
+1
+create table t1 (a int);
+insert into t1 values (3), (7), (1), (7), (1), (1), (3), (1), (5);
+create procedure sp2 ()
+with cte as (select * from t1) select * from cte;
+call sp2();
+a
+3
+7
+1
+7
+1
+1
+3
+1
+5
+call sp2();
+a
+3
+7
+1
+7
+1
+1
+3
+1
+5
+create procedure sp3 ()
+with cte as (select * from t1 group by a) select * from cte;
+call sp3();
+a
+1
+3
+5
+7
+call sp3();
+a
+1
+3
+5
+7
+drop procedure sp1;
+drop procedure sp2;
+drop procedure sp3;
+drop table t1;
# End of 10.2 tests
diff --git a/mysql-test/r/fulltext.result b/mysql-test/r/fulltext.result
index 5118cc3..709e91c 100644
--- a/mysql-test/r/fulltext.result
+++ b/mysql-test/r/fulltext.result
@@ -49,7 +49,7 @@ a b
Full-text indexes are called collections
Only MyISAM tables support collections
select * from t1 where MATCH(a,b) AGAINST ("indexes" IN BOOLEAN MODE WITH QUERY EXPANSION);
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'QUERY EXPANSION)' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WITH QUERY EXPANSION)' at line 1
explain select * from t1 where MATCH(a,b) AGAINST ("collections");
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 fulltext a a 0 1 Using where
diff --git a/mysql-test/t/cte_nonrecursive.test b/mysql-test/t/cte_nonrecursive.test
index f994781..cbe4f8b 100644
--- a/mysql-test/t/cte_nonrecursive.test
+++ b/mysql-test/t/cte_nonrecursive.test
@@ -1463,4 +1463,33 @@ drop procedure p1;
drop table t1,t2;
+
+--echo #
+--echo # MDEV-20411: SP containing only one SELECT with WITH clause
+--echo #
+
+create procedure sp1 ()
+with cte as (select 1 as a) select * from cte;
+call sp1();
+call sp1();
+
+create table t1 (a int);
+insert into t1 values (3), (7), (1), (7), (1), (1), (3), (1), (5);
+
+create procedure sp2 ()
+with cte as (select * from t1) select * from cte;
+call sp2();
+call sp2();
+
+create procedure sp3 ()
+with cte as (select * from t1 group by a) select * from cte;
+call sp3();
+call sp3();
+
+drop procedure sp1;
+drop procedure sp2;
+drop procedure sp3;
+
+drop table t1;
+
--echo # End of 10.2 tests
diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index 03c06b9..bdf52e8 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -2176,7 +2176,7 @@ class Lex_input_stream
/** Get the token start position, in the raw buffer. */
const char *get_tok_start()
{
- return m_tok_start;
+ return lookahead_token >= 0 ? m_tok_start_prev : m_tok_start;
}
void set_cpp_tok_start(const char *pos)
@@ -2222,7 +2222,7 @@ class Lex_input_stream
/** Get the token start position, in the pre-processed buffer. */
const char *get_cpp_tok_start()
{
- return m_cpp_tok_start;
+ return lookahead_token >= 0 ? m_cpp_tok_start_prev : m_cpp_tok_start;
}
/** Get the token end position, in the pre-processed buffer. */
1
0
[Commits] 4f6ac2d3bf0: MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
by Sergei Petrunia 25 Jun '21
by Sergei Petrunia 25 Jun '21
25 Jun '21
revision-id: 4f6ac2d3bf0dd68e640a6d728fd2b98788bc7959 (mariadb-10.5.10-226-g4f6ac2d3bf0)
parent(s): 7abf8b5c4d856a766dfdf4b2e1212694d66cbffb
author: Sergei Petrunia
committer: Sergei Petrunia
timestamp: 2021-06-25 19:11:19 +0300
message:
MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
Variant 2, the "handle failures at conversion" approach.
The patch is against the 10.5 series.
Consider a query in form:
select ... from (select item2 as COL1) as T where COL1=123
Condition pushdown into derived table will try to push "COL1=123" condition
down into table T.
The process of pushdown involves "substituting" the item, that is,
replacing Item_field("T.COL1") with its "producing item" item2.
In order to use item2, one needs to clone it (call Item::build_clone).
If the item is not cloneable (e.g. Item_func_sp is not), the pushdown
process will fail and nothing at all will be pushed.
Fixed by introducing get_clonable_extracted_cond_for_where() which
will try to apply the transformation for as many parts of condition
as possible. The parts of condition that couldn't be transformed are
dropped.
---
mysql-test/main/derived_cond_pushdown.result | 98 ++++++++++++++++++++++++++++
mysql-test/main/derived_cond_pushdown.test | 48 ++++++++++++++
sql/sql_lex.cc | 54 ++++++++++++++-
3 files changed, 198 insertions(+), 2 deletions(-)
diff --git a/mysql-test/main/derived_cond_pushdown.result b/mysql-test/main/derived_cond_pushdown.result
index 016ca22af1b..6a053b0f551 100644
--- a/mysql-test/main/derived_cond_pushdown.result
+++ b/mysql-test/main/derived_cond_pushdown.result
@@ -17343,3 +17343,101 @@ id select_type table type possible_keys key key_len ref rows Extra
drop view v1;
drop table t1;
# End of 10.4 tests
+#
+# MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+#
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+create table t1 (
+pk int primary key,
+a int,
+b int,
+key(a)
+);
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+insert into t1 select a,a,a from t3;
+create view v1 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v2 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+explain select * from v3 where col1=123;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using where
+2 DERIVED t1 ref a a 5 const 1
+3 UNION t1 ref a a 5 const 1
+# This must use ref accesses for reading table t1, not full scans:
+explain format=json
+select * from v3 where col1=123 and col2=321;
+EXPLAIN
+{
+ "query_block": {
+ "select_id": 1,
+ "table": {
+ "table_name": "<derived2>",
+ "access_type": "ALL",
+ "rows": 2,
+ "filtered": 100,
+ "attached_condition": "v3.col1 = 123 and v3.col2 = 321",
+ "materialized": {
+ "query_block": {
+ "union_result": {
+ "table_name": "<union2,3>",
+ "access_type": "ALL",
+ "query_specifications": [
+ {
+ "query_block": {
+ "select_id": 2,
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ },
+ {
+ "query_block": {
+ "select_id": 3,
+ "operation": "UNION",
+ "table": {
+ "table_name": "t1",
+ "access_type": "ref",
+ "possible_keys": ["a"],
+ "key": "a",
+ "key_length": "5",
+ "used_key_parts": ["a"],
+ "ref": ["const"],
+ "rows": 1,
+ "filtered": 100
+ }
+ }
+ }
+ ]
+ }
+ }
+ }
+ }
+ }
+}
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
diff --git a/mysql-test/main/derived_cond_pushdown.test b/mysql-test/main/derived_cond_pushdown.test
index a880712c8bd..8661bcdf388 100644
--- a/mysql-test/main/derived_cond_pushdown.test
+++ b/mysql-test/main/derived_cond_pushdown.test
@@ -3540,3 +3540,51 @@ drop view v1;
drop table t1;
--echo # End of 10.4 tests
+
+--echo #
+--echo # MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+--echo #
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+
+create table t1 (
+ pk int primary key,
+ a int,
+ b int,
+ key(a)
+);
+
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+
+insert into t1 select a,a,a from t3;
+
+create view v1 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+
+create view v2 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+
+explain select * from v3 where col1=123;
+
+--echo # This must use ref accesses for reading table t1, not full scans:
+explain format=json
+select * from v3 where col1=123 and col2=321;
+
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc
index f16102d918b..ac615483aee 100644
--- a/sql/sql_lex.cc
+++ b/sql/sql_lex.cc
@@ -10360,6 +10360,55 @@ bool LEX::sp_proc_stmt_statement_finalize(THD *thd, bool no_lookahead)
}
+/*
+ @brief
+ Given condition cond and transformer+argument, try transforming as many
+ disjuncts as possible.
+
+ @detail
+ The motivation of this function is to convert the condition that's being
+ pushed into a WHERE clause with derived_field_transformer_for_where.
+ The transformer may fail, in this case we want to convert as much of the
+ condition as possible.
+ This function only does it for top-level AND: disjuncts that could not be
+ converted are dropped.
+
+ @return
+ Converted condition, or NULL if nothing could be converted
+*/
+
+static
+Item *get_clonable_extracted_cond_for_where(THD *thd,
+ Item *cond,
+ Item_transformer transformer,
+ uchar *arg)
+{
+ if (cond->type() != Item::COND_ITEM ||
+ ((Item_cond*) cond)->functype() != Item_func::COND_AND_FUNC)
+ return cond->transform(thd, transformer, arg);
+
+ List_iterator<Item> li(*((Item_cond*) cond)->argument_list());
+ Item *item;
+ while ((item=li++))
+ {
+ Item *new_item= item->transform(thd, transformer, arg);
+ if (!new_item)
+ li.remove();
+ else
+ li.replace(new_item);
+ }
+ switch (((Item_cond*) cond)->argument_list()->elements)
+ {
+ case 0:
+ return 0;
+ case 1:
+ return ((Item_cond*) cond)->argument_list()->head();
+ default:
+ return cond;
+ }
+}
+
+
/**
@brief
Extract the condition that can be pushed into WHERE clause
@@ -10368,6 +10417,8 @@ bool LEX::sp_proc_stmt_statement_finalize(THD *thd, bool no_lookahead)
@param cond the condition from which to extract a pushed condition
@param remaining_cond IN/OUT the condition that will remain of cond after
the extraction
+ Note: returning NULL means "re-check the entire
+ condition at the upper level".
@param transformer the transformer callback function to be
applied to the fields of the condition so it
can be pushed`
@@ -10432,8 +10483,7 @@ void st_select_lex::pushdown_cond_into_where_clause(THD *thd, Item *cond,
if (!join->group_list && !with_sum_func)
{
- cond=
- cond->transform(thd, transformer, arg);
+ cond= get_clonable_extracted_cond_for_where(thd, cond, transformer, arg);
if (cond)
{
cond->walk(
1
0
[Commits] 521c546a71c: MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
by Sergei Petrunia 24 Jun '21
by Sergei Petrunia 24 Jun '21
24 Jun '21
revision-id: 521c546a71c9449a87ebabbf13725b91fec45671 (mariadb-10.5.10-226-g521c546a71c)
parent(s): 7abf8b5c4d856a766dfdf4b2e1212694d66cbffb
author: Sergei Petrunia
committer: Sergei Petrunia
timestamp: 2021-06-24 22:02:09 +0300
message:
MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
Consider a query in form:
select ... from (select item2 as COL1) as T where COL1=123
Condition pushdown into derived table will try to push "COL1=123" condition
down into table T.
The process of pushdown involves "substituting" the item, that is,
replacing Item_field("T.COL1") with its "producing item" item2.
In order to use item2, one needs to clone it (call Item::build_clone).
If the item is not cloneable (e.g. Item_func_sp is not), the
pushdown process will fail and nothing at all will be pushed.
This patch makes pushdown_cond_for_derived() to first extract the
portion of a condition which can be pushed, and then push only that.
---
mysql-test/main/derived_cond_pushdown.result | 45 +++++++++++++++++++++++++
mysql-test/main/derived_cond_pushdown.test | 50 ++++++++++++++++++++++++++++
sql/item.cc | 24 +++++++++++++
sql/item.h | 11 ++++++
sql/item_cmpfunc.h | 4 +++
sql/item_func.h | 1 +
sql/sql_derived.cc | 23 +++++++++++++
7 files changed, 158 insertions(+)
diff --git a/mysql-test/main/derived_cond_pushdown.result b/mysql-test/main/derived_cond_pushdown.result
index 016ca22af1b..82e34a71964 100644
--- a/mysql-test/main/derived_cond_pushdown.result
+++ b/mysql-test/main/derived_cond_pushdown.result
@@ -17343,3 +17343,48 @@ id select_type table type possible_keys key key_len ref rows Extra
drop view v1;
drop table t1;
# End of 10.4 tests
+#
+# MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+#
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+create table t1 (
+pk int primary key,
+a int,
+b int,
+key(a)
+);
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+insert into t1 select a,a,a from t3;
+create view v1 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v2 as
+select
+t1.a as col1,
+f1(t1.b) as col2
+from
+t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+explain select * from v3 where col1=123;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using where
+2 DERIVED t1 ref a a 5 const 1
+3 UNION t1 ref a a 5 const 1
+# This must use ref accesses for reading table t1, not full scans:
+explain select * from v3 where col1=123 and col2=321;
+id select_type table type possible_keys key key_len ref rows Extra
+1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using where
+2 DERIVED t1 ref a a 5 const 1
+3 UNION t1 ref a a 5 const 1
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
diff --git a/mysql-test/main/derived_cond_pushdown.test b/mysql-test/main/derived_cond_pushdown.test
index a880712c8bd..1e924747b8f 100644
--- a/mysql-test/main/derived_cond_pushdown.test
+++ b/mysql-test/main/derived_cond_pushdown.test
@@ -3540,3 +3540,53 @@ drop view v1;
drop table t1;
--echo # End of 10.4 tests
+
+--echo #
+--echo # MDEV-25969: Condition pushdown into derived table doesn't work if select list uses SP
+--echo #
+create function f1(a int) returns int DETERMINISTIC return (a+1);
+
+create table t1 (
+ pk int primary key,
+ a int,
+ b int,
+ key(a)
+);
+
+create table t2(a int);
+insert into t2 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+
+create table t3(a int);
+insert into t3 select A.a + B.a* 10 + C.a * 100 from t2 A, t2 B, t2 C;
+
+insert into t1 select a,a,a from t3;
+
+create view v1 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+
+create view v2 as
+select
+ t1.a as col1,
+ f1(t1.b) as col2
+from
+ t1;
+create view v3 as
+select col2, col1 from v1
+union all
+select col2, col1 from v2;
+
+explain select * from v3 where col1=123;
+
+--echo # This must use ref accesses for reading table t1, not full scans:
+explain select * from v3 where col1=123 and col2=321;
+explain format=json
+select * from v3 where col1=123 and col2=321;
+
+drop function f1;
+drop view v1,v2,v3;
+drop table t1, t2,t3;
+
diff --git a/sql/item.cc b/sql/item.cc
index 8cad7111e07..13505690c9b 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -7605,6 +7605,30 @@ Item *find_producing_item(Item *item, st_select_lex *sel)
return NULL;
}
+
+/*
+ @brief Check if this item cannot be pushed down into derived table
+
+ @detail
+ This function checks if derived_field_transformer_for_where() will
+ fail. It will fail if the "producing item" (column in the derived table)
+ cannot be cloned.
+
+ @return
+ false - Ok, can be pushed
+ true - Cannot be pushed
+*/
+
+bool Item_field::check_non_pushable_processor(void *arg)
+{
+ st_select_lex *sel= (st_select_lex *)arg;
+ Item *producing_item= find_producing_item(this, sel);
+ if (producing_item)
+ return producing_item->walk(&Item::check_non_cloneable_processor, 0, 0);
+ return false; // Ok
+}
+
+
Item *Item_field::derived_field_transformer_for_where(THD *thd, uchar *arg)
{
st_select_lex *sel= (st_select_lex *)arg;
diff --git a/sql/item.h b/sql/item.h
index e340483466b..a8526bd1016 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -2118,6 +2118,12 @@ class Item: public Value_source,
If there is some, sets a bit for this key in the proper key map.
*/
virtual bool check_index_dependence(void *arg) { return 0; }
+
+ /* Return true if the item can NOT be pushed down into a derived table */
+ virtual bool check_non_pushable_processor(void *arg) { return 0; }
+
+ /* Return true if the item cannot be cloned (get_copy() will return NULL) */
+ virtual bool check_non_cloneable_processor(void *arg) { return 0; }
/*============== End of Item processor list ======================*/
/*
@@ -2471,10 +2477,14 @@ class Item: public Value_source,
marker &= ~EXTRACTION_MASK;
}
void check_pushable_cond(Pushdown_checker excl_dep_func, uchar *arg);
+ /*
+ @seealso pushable_cond_checker_for_derived_inner
+ */
bool pushable_cond_checker_for_derived(uchar *arg)
{
return excl_dep_on_table(*((table_map *)arg));
}
+ bool pushable_cond_checker_for_derived_inner(uchar *arg);
bool pushable_cond_checker_for_subquery(uchar *arg)
{
DBUG_ASSERT(((Item*) arg)->get_IN_subquery());
@@ -3610,6 +3620,7 @@ class Item_field :public Item_ident,
return field->table->pos_in_table_list->outer_join;
}
bool check_index_dependence(void *arg) override;
+ bool check_non_pushable_processor(void *arg) override;
friend class Item_default_value;
friend class Item_insert_value;
friend class st_select_lex_unit;
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index aa7269ab95a..d02a92bbfa9 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -2908,6 +2908,8 @@ class Item_func_regex :public Item_bool_func
const char *func_name() const { return "regexp"; }
enum precedence precedence() const { return IN_PRECEDENCE; }
Item *get_copy(THD *) { return 0; }
+ bool check_non_cloneable_processor(void *arg) { return true; }
+
void print(String *str, enum_query_type query_type)
{
print_op(str, query_type);
@@ -2947,6 +2949,7 @@ class Item_func_regexp_instr :public Item_long_func
bool fix_length_and_dec();
const char *func_name() const { return "regexp_instr"; }
Item *get_copy(THD *thd) { return 0; }
+ bool check_non_cloneable_processor(void *arg) { return true; }
};
@@ -3206,6 +3209,7 @@ class Item_equal: public Item_bool_func
void set_context_field(Item_field *ctx_field) { context_field= ctx_field; }
void set_link_equal_fields(bool flag) { link_equal_fields= flag; }
Item* get_copy(THD *thd) { return 0; }
+ bool check_non_cloneable_processor(void *arg) override { return true; }
/*
This does not comply with the specification of the virtual method,
but Item_equal items are processed distinguishly anyway
diff --git a/sql/item_func.h b/sql/item_func.h
index e774d9c53bd..506b2da335c 100644
--- a/sql/item_func.h
+++ b/sql/item_func.h
@@ -3563,6 +3563,7 @@ class Item_func_sp :public Item_func,
return TRUE;
}
Item *get_copy(THD *) { return 0; }
+ bool check_non_cloneable_processor(void *arg) override { return true; }
bool eval_not_null_tables(void *opt_arg)
{
not_null_tables_cache= 0;
diff --git a/sql/sql_derived.cc b/sql/sql_derived.cc
index ed3743b029b..1017dc1a0d8 100644
--- a/sql/sql_derived.cc
+++ b/sql/sql_derived.cc
@@ -1358,6 +1358,25 @@ bool mysql_derived_reinit(THD *thd, LEX *lex, TABLE_LIST *derived)
}
+/*
+ @brief
+ Check if this item can be pushed into given SELECT.
+
+ @param arg Pointer to SELECT_LEX object of the child select
+
+ @seealso Item::pushable_cond_checker_for_derived
+
+ @detail
+ This function checks if derived_field_transformer_for_where() will
+ fail. It will fail if the "producing_item" (column in the derived table)
+ cannot be cloned.
+*/
+bool Item::pushable_cond_checker_for_derived_inner(uchar *arg)
+{
+ return !walk(&Item::check_non_pushable_processor, false, arg);
+}
+
+
/**
@brief
Extract condition that can be pushed into a derived table/view
@@ -1486,6 +1505,10 @@ bool pushdown_cond_for_derived(THD *thd, Item *cond, TABLE_LIST *derived)
if (!extracted_cond_copy)
continue;
+ extracted_cond_copy->check_pushable_cond(
+ &Item::pushable_cond_checker_for_derived_inner, (uchar*)sl);
+ extracted_cond_copy= extracted_cond_copy->build_pushable_cond(thd, NULL, 0);
+
/*
Rename the columns of all non-first selects of a union to be compatible
by names with the columns of the first select. It will allow to use copies
1
0