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;