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[Commits] c541808: MDEV-19956 Queries with subqueries containing UNION are not parsed
by IgorBabaev 14 Sep '19

14 Sep '19

revision-id: c541808629d20345c4fc0a0b6495dd0616557250 (mariadb-10.4.4-234-gc541808) parent(s): e8392e58b2a5a69f9c0bd5b5aed90348b4a0ccb3 author: Igor Babaev committer: Igor Babaev timestamp: 2019-09-14 12:36:56 -0700 message: MDEV-19956 Queries with subqueries containing UNION are not parsed Some Shift-Reduce conflicts prevented parsing queries with subqueries in expressions and in IN predicands. This patch re-wrote the grammar rules to avoid these conflicts using an idea taken from MySQL 8.0. --- mysql-test/main/brackets.result | 4022 +++++++++++++++++++++- mysql-test/main/brackets.test | 2318 +++++++++++++ mysql-test/main/cte_nonrecursive.result | 4 +- mysql-test/main/cte_recursive.result | 6 +- mysql-test/main/except.result | 4 +- mysql-test/main/intersect.result | 6 +- mysql-test/main/parser.result | 2 +- mysql-test/main/parser.test | 1 - mysql-test/main/ps.result | 8 +- mysql-test/main/statement-expr.result | 16 +- mysql-test/main/subselect.result | 19 +- mysql-test/main/subselect.test | 4 - mysql-test/main/subselect_no_exists_to_in.result | 19 +- mysql-test/main/subselect_no_mat.result | 19 +- mysql-test/main/subselect_no_opts.result | 19 +- mysql-test/main/subselect_no_scache.result | 19 +- mysql-test/main/subselect_no_semijoin.result | 19 +- mysql-test/main/subselect_notembedded.result | 2 +- sql/item_subselect.cc | 3 +- sql/sql_cte.cc | 16 + sql/sql_lex.cc | 295 +- sql/sql_lex.h | 48 +- sql/sql_table.cc | 2 +- sql/sql_tvc.cc | 4 +- sql/sql_union.cc | 49 +- sql/sql_yacc.yy | 442 ++- sql/sql_yacc_ora.yy | 428 ++- 27 files changed, 7214 insertions(+), 580 deletions(-) diff --git a/mysql-test/main/brackets.result b/mysql-test/main/brackets.result index e14bef9..dedd9a2 100644 --- a/mysql-test/main/brackets.result +++ b/mysql-test/main/brackets.result @@ -355,7 +355,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 2 UNION t1 ALL NULL NULL NULL NULL 3 100.00 NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL Using filesort Warnings: -Note 1003 (/* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 20) union /* select#2 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` order by `a` desc limit 1 +Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 20 union /* select#2 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` order by `a` desc limit 1 explain format=json ((select a from t1 where a=20 union select a from t1) order by a desc) limit 1; EXPLAIN { @@ -494,4 +494,4024 @@ a 3 8 drop table t1; +# +# MDEV-19956: query expressions in different contexts +# +create table t1 (a int); +insert into t1 values (3), (7), (1), (2), (4); +create table t2 (a int, b int); +insert into t2 values (3,30), (7,70), (1,10), (2,20), (4,40); +# 1. select +# 1.1. simple select +select * from t1; +a +3 +7 +1 +2 +4 +(select * from t1); +a +3 +7 +1 +2 +4 +((select * from t1)); +a +3 +7 +1 +2 +4 +# 1.2. select with tail +select * from t1 order by a; +a +1 +2 +3 +4 +7 +select a from t1 order by a; +a +1 +2 +3 +4 +7 +select a from t1 order by 1; +a +1 +2 +3 +4 +7 +select * from t1 order by t1.a; +a +1 +2 +3 +4 +7 +(select * from t1 order by t1.a); +a +1 +2 +3 +4 +7 +((select * from t1 order by t1.a)); +a +1 +2 +3 +4 +7 +(select * from t1 order by t1.a limit 2); +a +1 +2 +(select a from t1 where a=1) order by 1 desc; +a +1 +# 1.2. select with several tails +(select * from t2 order by a limit 2) order by b desc; +a b +2 20 +1 10 +(select * from t2 order by t2.a limit 2) order by b desc; +a b +2 20 +1 10 +((select * from t2 order by t2.a limit 2) order by b desc); +a b +2 20 +1 10 +(((select * from t2 order by t2.a) limit 2) order by b desc); +a b +2 20 +1 10 +# 2. union +# 2.1 simple union +select a from t1 union select a from t1; +a +3 +7 +1 +2 +4 +select a from t1 union all select a from t1; +a +3 +7 +1 +2 +4 +3 +7 +1 +2 +4 +select a from t1 union select b from t2; +a +3 +7 +1 +2 +4 +30 +70 +10 +20 +40 +(select a from t1) union (select a from t1); +a +3 +7 +1 +2 +4 +(select a from t1) union (select b from t2); +a +3 +7 +1 +2 +4 +30 +70 +10 +20 +40 +select a from t1 where a=1 union select a from t1 where a=3; +a +1 +3 +(select a from t1 where a=1) union select a from t1 where a=3; +a +1 +3 +((select a from t1 where a=1) union select a from t1 where a=3); +a +1 +3 +((select a from t1 where a<=3) union (select a from t1 where a=3)); +a +3 +1 +2 +select a from t1 where a=1 union (select a from t1 where a=3); +a +1 +3 +(select a from t1 where a=1 union (select a from t1 where a=3)); +a +1 +3 +((select a from t1 where a=1 union (select a from t1 where a=3))); +a +1 +3 +select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=7; +a +1 +3 +7 +( select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=7 ); +a +1 +3 +7 +(select a from t1 where a=1 order by a) union select a from t1 where a=3; +a +1 +3 +(select a from t1 where a!=3 order by a desc) union select a from t1 where a=3; +a +7 +1 +2 +4 +3 +((select a from t1 where a=1 order by a) union select a from t1 where a=3); +a +1 +3 +(select a from t1 where a!=3 order by a desc) union select a from t1 where a=3; +a +7 +1 +2 +4 +3 +( ( select a from t1 where a!=3 order by a desc limit 3) +union +select a from t1 where a=3 ); +a +7 +4 +2 +3 +( select a from t1 where a <=3 except select a from t1 where a >=3 ) +union +select a from t1 where a=7; +a +1 +2 +7 +( ( select a from t1 where a <=3 +except +select a from t1 where a >=3 ) +union +select a from t1 where a=7 ); +a +1 +2 +7 +( select a from t1 where a <=3 +except +( select a from t1 where a >=3 +union +select a from t1 where a=7 ) ); +a +1 +2 +( ( select a from t1 where a <=3 ) +except +( select a from t1 where a >=3 +union +select a from t1 where a=7 ) ); +a +1 +2 +# 2.2. union with tail +select a from t1 where a=1 union select a from t1 where a=3 order by a desc; +a +3 +1 +(select a from t1 limit 2) union select a from t1 where a=3 order by a desc; +a +7 +3 +select a from t1 where a=4 union (select a from t1 where a <=4 limit 2) +order by a desc; +a +4 +3 +1 +select a from t1 where a=4 +union +(select a from t1 where a <=4 order by a limit 2) +order by a desc; +a +4 +2 +1 +( select a from t1 where a=4 +union +( select a from t1 where a <=4 order by a limit 2 ) ) +order by a desc; +a +4 +2 +1 +( select a from t1 where a <=3 except select a from t1 where a >=3 ) +union +select a from t1 where a=7 order by a desc; +a +7 +2 +1 +( select a from t1 where a!=3 order by a desc ) +union +select a from t1 where a=3 +order by a desc; +a +7 +4 +3 +2 +1 +(select a from t1 where a=1) +union +(select a from t1 where a=3) +order by a desc; +a +3 +1 +( select a from t1 where a=1 +union +select a from t1 where a=3 ) +order by a desc; +a +3 +1 +( ( select a from t1 where a=1 ) +union +( select a from t1 where a=3 ) ) +order by a desc; +a +3 +1 +( select a from t1 where a=1 +union +select a from t1 where a=3 ) +order by 1 desc; +a +3 +1 +((select a from t1 where a=1 union select a from t1 where a=3)) order by 1 desc; +a +3 +1 +(((select a from t1 where a=1) union (select a from t1 where a=3))) +order by 1 desc; +a +3 +1 +( (select a from t1 where a=1 ) +union +(select a from t1 where a=3) ) +order by 1 desc; +a +3 +1 +# 2.3. complex union +select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 +union +select a from t1 where a=4; +a +1 +3 +2 +4 +( select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 ) +union +select a from t1 where a=4; +a +1 +3 +2 +4 +(select a from t1 where a=1 union select a from t1 where a=3) +union +(select a from t1 where a=2 union select a from t1 where a=4); +a +1 +3 +2 +4 +(select a from t1 where a=1 union (select a from t1 where a=3)) +union +((select a from t1 where a=2) union select a from t1 where a=4); +a +1 +3 +2 +4 +( ( select a from t1 where a=1) +union +select a from t1 where a=3 ) +union +select a from t1 where a=2 +union +select a from t1 where a=4; +a +1 +3 +2 +4 +( ( ( select a from t1 where a=1) +union +select a from t1 where a=3 ) +union +select a from t1 where a=2 ) +union +select a from t1 where a=4; +a +1 +3 +2 +4 +select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 +union +(select a from t1 where a=4); +a +1 +3 +2 +4 +select a from t1 where a=1 +union +select a from t1 where a=3 +union +( select a from t1 where a=2 +union +( select a from t1 where a=4 ) ); +a +1 +3 +2 +4 +select a from t1 where a=1 +union +( select a from t1 where a=3 +union +( select a from t1 where a=2 +union +( select a from t1 where a=4 ) ) ); +a +1 +3 +2 +4 +# 2.4. complex union with tail +( ( select a from t1 where a=1 union select a from t1 where a=3 ) +order by a desc ) +union +( ( select a from t1 where a=2 union select a from t1 where a=4 ) +order by a desc ); +a +3 +1 +4 +2 +( ( select a from t1 where a=1 union select a from t1 where a=3 ) +order by a desc ) +union +( ( select a from t1 where a=2 union select a from t1 where a=4 ) +order by a desc ) +order by a; +a +1 +2 +3 +4 +( select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 order by a desc limit 2 ) +union +select a from t1 where a=4 +order by a; +a +2 +3 +4 +( select a from t1 where a=1 +union +select a from t1 where a=3 order by a desc ) +union +select a from t1 where a=2 order by a desc limit 2; +a +3 +2 +( ( select a from t1 where a >= 2 +union +select a from t1 where a=1 order by a desc limit 2 ) +union +select a from t1 where a=3 order by a limit 2 ) +union +select a from t1 where a=1; +a +3 +4 +1 +# 3. TVC +# 3.1. simple TVC +values (3), (7), (1); +3 +3 +7 +1 +(values (3), (7), (1)); +3 +3 +7 +1 +((values (3), (7), (1))); +3 +3 +7 +1 +# 3.2. simple TVC with tail(s) +values (3), (7), (1) order by 1; +3 +1 +3 +7 +(values (3), (7), (1)) order by 1; +3 +1 +3 +7 +((values (3), (7), (1))) order by 1; +3 +1 +3 +7 +(((values (3), (7), (1))) order by 1); +3 +1 +3 +7 +(values (3), (7), (1) limit 2) order by 1 desc; +3 +7 +3 +((values (3), (7), (1)) order by 1 desc) limit 2; +3 +7 +3 +(((values (3), (7), (1)) order by 1 desc) limit 2); +3 +7 +3 +# 3.3. union of TVCs +values (3), (7), (1) union values (3), (4), (2); +3 +3 +7 +1 +4 +2 +values (3), (7), (1) union all values (3), (4), (2); +3 +3 +7 +1 +3 +4 +2 +values (3), (7), (1) union values (3), (4), (2); +3 +3 +7 +1 +4 +2 +values (3), (7), (1) except values (3), (4), (2); +3 +7 +1 +(values (3), (7), (1)) union (values (3), (4), (2)); +3 +3 +7 +1 +4 +2 +(values (3), (7), (1)) union (values (3), (4), (2)) union values (5), (7); +3 +3 +7 +1 +4 +2 +5 +(values (3), (7), (1)) union (values (3), (4), (2)) union (values (5), (7)); +3 +3 +7 +1 +4 +2 +5 +(values (3), (7), (1) union values (3), (4), (2)) union values (5), (7); +3 +3 +7 +1 +4 +2 +5 +values (3), (7), (1) union (values (3), (4), (2) union values (5), (7)); +3 +3 +7 +1 +4 +2 +5 +(values (3), (7), (1) union ((values (3), (4), (2) union values (5), (7)))); +3 +3 +7 +1 +4 +2 +5 +# 3.4. tailed union of TVCs +values (3), (7), (1) union values (3), (4), (2) order by 1; +3 +1 +2 +3 +4 +7 +(values (3), (7), (1) union values (3), (4), (2)) order by 1; +3 +1 +2 +3 +4 +7 +(values (3), (7), (1) union values (3), (4), (2)) order by 1; +3 +1 +2 +3 +4 +7 +values (3), (7), (1) union (values (3), (4), (2)) order by 1; +3 +1 +2 +3 +4 +7 +(values (3), (7), (1) union values (3), (4), (2)) order by 1; +3 +1 +2 +3 +4 +7 +((values (3), (7), (1)) union values (3), (4), (2)) order by 1; +3 +1 +2 +3 +4 +7 +# 3.5. union of tailed TVCs +(values (3), (7), (1) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2); +3 +1 +3 +4 +((values (3), (7), (1) order by 1) limit 2) +union +((values (3), (4), (2) order by 1 desc) limit 2); +3 +1 +3 +4 +(((values (3), (7), (1)) order by 1) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2); +3 +1 +3 +4 +# 3.6. tailed union of tailed TVCs +(values (3), (7), (1) order by 1 limit 2) +union +values (3), (4), (2) +order by 1; +3 +1 +2 +3 +4 +((values (3), (7), (1)) order by 1 limit 2) +union +((values (3), (4), (2) order by 1 desc) limit 2) +order by 1; +3 +1 +3 +4 +# 3.7 [tailed] union of [tailed] select and [tailed] TVC +(select a from t1 where a <=3 order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2); +a +1 +2 +4 +3 +((select a from t1 where a <=3) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2); +a +1 +2 +4 +3 +(((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2); +a +1 +2 +4 +3 +( (((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) ); +a +1 +2 +4 +3 +(select a from t1 where a <=3 order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) +order by a; +a +1 +2 +3 +4 +((select a from t1 where a <=3) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) +order by a; +a +1 +2 +3 +4 +(((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) +order by a; +a +1 +2 +3 +4 +(((values (3), (4), (2)) order by 1 desc) limit 2); +3 +4 +3 +( (((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) ) +order by a; +a +1 +2 +3 +4 +(values (3), (4), (2) order by 1 desc limit 2) +union +(select a from t1 where a <=3 order by 1 limit 2); +3 +4 +3 +1 +2 +(values (3), (4), (2) order by 1 desc limit 2) +union +((select a from t1 where a <=3) order by 1 limit 2); +3 +4 +3 +1 +2 +(((values (3), (4), (2)) order by 1 desc) limit 2) +union +(((select a from t1 where a <=3) order by 1) limit 2); +3 +4 +3 +1 +2 +(((values (3), (4), (2)) order by 1 desc) limit 2) +union +(((select a from t1 where a <=3) order by a) limit 2) +order by 1; +3 +1 +2 +3 +4 +( select a from t1 where a=1 +union +values (3), (4), (2) order by 1 desc ) +union +select a from t1 where a=2 order by a desc limit 3; +a +4 +3 +2 +4. CTE +4.1. simple select with simple CTE +with t as (select * from t1 where a <=3) +select * from t; +a +3 +1 +2 +with t as (select * from t1 where a <=3) +(select * from t); +a +3 +1 +2 +with t as (select * from t1 where a <=3) +((select * from t)); +a +3 +1 +2 +with t as ((select * from t1 where a <=3)) +select * from t; +a +3 +1 +2 +with t as (((select * from t1 where a <=3))) +select * from t; +a +3 +1 +2 +4.2. tailed select with simple CTE +with t as (select * from t1 where a <=3) +select * from t order by a; +a +1 +2 +3 +with t as (select * from t1 where a <=3) +(select * from t) order by a; +a +1 +2 +3 +with t as (select * from t1 where a <=3) +(select * from t) order by a desc limit 2; +a +3 +2 +4.3. [tailed] select with tailed CTE +with t as (select * from t1 where a >=2 order by a limit 2) +select * from t; +a +2 +3 +with t as (((select * from t1 where a >=2) order by a desc) limit 2) +select * from t; +a +7 +4 +with t as (select * from t1 where a >=2 order by a desc limit 2) +select * from t order by a; +a +4 +7 +4.4. [tailed] union with CTE +with t as (select * from t1 where a <=3) +select a from t1 where a=1 union select a from t where a=3; +a +1 +3 +with t as (select * from t1 where a <=3) +(select a from t) union (select b from t2); +a +3 +1 +2 +30 +70 +10 +20 +40 +with t as (select * from t1 where a <=3) +(select a from t) union (select b as a from t2) order by a desc; +a +70 +40 +30 +20 +10 +3 +2 +1 +4.5. [tailed] union with [tailed] union in CTE +with t as (select * from t1 where a < 3 union select * from t1 where a > 3) +select a from t1 where a=1 union select a from t where a=7; +a +1 +7 +with t as +( select * from t1 where a < 3 +union +select * from t1 where a > 3 +order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7; +a +4 +7 +with t as +( select * from t1 where a < 3 +union +select * from t1 where a > 3 +order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; +a +7 +4 +with t as +( (select * from t1 where a < 3) +union +(select * from t1 where a > 3) +order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; +a +7 +4 +with t as +( (select * from t1 where a < 3) +union +(select * from t1 where a > 3) +order by a desc limit 3 ) +(select a from t1 where a=4 union select a from t where a=7 order by a desc); +a +7 +4 +with t as +( (select * from t1 where a < 3) +union +(select * from t1 where a > 3) +order by a desc limit 3 ) +((select a from t1 where a=4 union select a from t where a=7) order by a desc); +a +7 +4 +with t as +( select * from t1 where a < 3 +union +values (4), (7) +order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; +a +7 +4 +4.6. [tailed] union with [tailed] union of TVC in CTE +with t(a) as +( values (2), (1) +union +(values (4), (7)) +order by 1 desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; +a +7 +4 +with t(a) as +( (values (2), (1)) +union +(values (4), (7) order by 1 desc) +order by 1 desc limit 3 ) +select a from t1 where a=1 union select a from t where a=7 order by a desc; +a +7 +1 +with t(a) as +( (values (2), (1)) +union +(values (4), (7) order by 1 desc) +order by 1 limit 3 ) +select a from t where a=1 union values (7) order by a desc; +a +7 +1 +with t(a) as +( (values (2), (1)) +union +(values (4), (7) order by 1 desc ) ) +select a from t where a=1 union select 7 order by a desc; +a +7 +1 +4.5. [tailed] union with two CTEs +with t as (select * from t1 where a < 3), +s as (select * from t1 where a > 3) +select a from t where a=1 union select a from s where a=7 order by a desc; +a +7 +1 +with t as (select * from t1 where a < 3), +s as (select * from t1 where a > 3) +(select a from t where a=1 union select a from s where a=7 order by a desc); +a +7 +1 +with t as (select * from t1 where a < 3), +s as (select * from t1 where a > 3) +(select a from t where a=1 union select a from s where a=7) order by a desc; +a +7 +1 +with t as (select * from t1 where a < 3), +s as (select * from t where a > 3) +select a from t where a=1 union select a from s where a=7 order by a desc; +a +1 +# 5. single-row subquery in expression +# 5.1. [tailed] simple select in expression +select (a+1) + b as r from t2; +r +34 +78 +12 +23 +45 +select ((a+1) + b) as r from t2; +r +34 +78 +12 +23 +45 +select (b + (select 1)) as r from t2; +r +31 +71 +11 +21 +41 +select (select a from t1 where a <=3 order by a desc limit 1) as r from t2; +r +3 +3 +3 +3 +3 +select +(select a from t1 where a <=3 order by a desc limit 1) as r from t2; +r +3 +3 +3 +3 +3 +select (select 100) as r from t2; +r +100 +100 +100 +100 +100 +select ((select 100)) as r from t2; +r +100 +100 +100 +100 +100 +select (select 100) + t2.b as r from t2; +r +130 +170 +110 +120 +140 +select ((select 100) + t2.b) as r from t2; +r +130 +170 +110 +120 +140 +# 5.2. [tailed] TVC in expression +select (values (200)) as r from t2; +r +200 +200 +200 +200 +200 +select ((values (200))) as r from t2; +r +200 +200 +200 +200 +200 +select (values (200)) + t2.b as r from t2; +r +230 +270 +210 +220 +240 +select ((values (200)) + t2.b) as r from t2; +r +230 +270 +210 +220 +240 +select (values (200), (300) order by 1 desc limit 1) as r from t2; +r +300 +300 +300 +300 +300 +select ((values (200), (300)) order by 1 desc limit 1) as r from t2; +r +300 +300 +300 +300 +300 +select (select * from t1 limit 1) as r from t2; +r +3 +3 +3 +3 +3 +select (select * from t1 order by a limit 1) as r from t2; +r +1 +1 +1 +1 +1 +select ((select * from t1 order by a limit 1)) as r from t2; +r +1 +1 +1 +1 +1 +((select ((select * from t1 order by a limit 1)) as r from t2)); +r +1 +1 +1 +1 +1 +select (select * from t1 order by a limit 1) + t2.b as r from t2; +r +31 +71 +11 +21 +41 +# 5.3. [tailed] union in expression +select +( select a from t1 where a<3 union select a from t1 where a>4 +order by a desc limit 1 ) as r +from t1; +r +7 +7 +7 +7 +7 +select +( (select a from t1 where a<3) union (select a from t1 where a>4) +order by a desc limit 1 ) as r +from t1; +r +7 +7 +7 +7 +7 +select +( select a from t1 where a<3 union select a from t1 where a>4 +order by a desc limit 1 ) + t1.a as r +from t1; +r +10 +14 +8 +9 +11 +select +t1.a + +( select a from t1 where a<3 union select a from t1 where a>4 +order by a desc limit 1 ) as r +from t1; +r +10 +14 +8 +9 +11 +select +( (select a from t1 where a<3 union select a from t1 where a>4 +order by a desc limit 1 ) + t1.a) as r +from t1; +r +10 +14 +8 +9 +11 +select +( ( (select a from t1 where a<3) union (select a from t1 where a>4) +order by a desc limit 1 ) + t1.a ) as r +from t1; +r +10 +14 +8 +9 +11 +# 5.4. [tailed] select with simple CTE in expression +select +( with t as (select * from t1 where a <=3) +select a from t limit 1) as r +from t2; +r +3 +3 +3 +3 +3 +select +( with t as (select * from t1 where a <=3) +select a from t limit 1) + t2.b as r +from t2; +r +33 +73 +13 +23 +43 +select +t2.b +( with t as (select * from t1 where a <=3) +select a from t limit 1) as r +from t2; +r +33 +73 +13 +23 +43 +select +((( with t as (select * from t1 where a <=3) +select a from t limit 1) + t2.b)) as r +from t2; +r +33 +73 +13 +23 +43 +select +( with t as (select * from t1 where a <=3) +select a from t limit 1) + 100 as r +from t2; +r +103 +103 +103 +103 +103 +select +( with t as (select * from t1 where a <=3) +select a from t limit 1) + (select 100) as r +from t2; +r +103 +103 +103 +103 +103 +select +( with t as (select * from t1 where a <=3) +select a from t limit 1) + t2.b + (select 100) as r +from t2; +r +133 +173 +113 +123 +143 +select +( with t as (select * from t1 where a <=3) +select a from t limit 1 ) + (t2.b + (select 100)) as r +from t2; +r +133 +173 +113 +123 +143 +select +( with t as (select * from t1 where a <=3) +select a from t limit 1 ) + t2.b + (values (100)) as r +from t2; +r +133 +173 +113 +123 +143 +# 5.5. [tailed] union with simple CTE in expression +select +( with t as (select * from t1 where a <=3) +select a from t union select b from t2 order by a desc limit 1) as r +from t2; +r +70 +70 +70 +70 +70 +select +( with t as (select * from t1 where a <=3) +(select a from t) union (select b from t2) order by a desc limit 1) as r +from t2; +r +70 +70 +70 +70 +70 +select +( with t as (select * from t1 where a <=3) +(select a from t) union (select b from t2) order by a desc limit 1) as r +from t2; +r +70 +70 +70 +70 +70 +select +( ( with t as (select * from t1 where a <=3) +(select a from t) union (select b from t2) order by a desc limit 1) + +t2.a ) as r +from t2; +r +73 +77 +71 +72 +74 +# 5.6. [tailed] union with CTE with union in expression +select +( with t as +( select * from t1 where a < 3 +union +select * from t1 where a > 3 +order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 limit 1) as r +from t2; +r +4 +4 +4 +4 +4 +select +( with t as +( select * from t1 where a < 3 +union +select * from t1 where a > 3 +order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 limit 1) + +t2. b as r +from t2; +r +34 +74 +14 +24 +44 +# 5.7. [tailed] union of TVCs with CTE with union in expression +select +( with t(a) as +( (values (2), (1)) +union +(values (4), (7) order by 1 limit 1) +order by 1 desc limit 3 ) select * from t limit 1 ) + t2.b as r +from t2; +r +34 +74 +14 +24 +44 +select +( with t(a) as +( select 2 union select 1 +union +(values (4), (7) order by 1 limit 1) +order by 1 limit 3 ) select * from t limit 1 ) + t2.b as r +from t2; +r +31 +71 +11 +21 +41 +# 6. subquery +# 6.1. TVC in IN subquery +select a from t1 where a in (1,8,7); +a +7 +1 +select a from t1 where a in (values (1), (8), (7)); +a +7 +1 +# 6.2. simple select in IN subquery +select a from t1 where a in (select a from t2 where a <= 3); +a +3 +1 +2 +select a from t1 where a in ((select a from t2 where a <= 3)); +a +3 +1 +2 +# 6.3. union in IN subquery +select a from t1 +where a in (select a from t1 where a<=2 union select a from t2 where b>40); +a +7 +1 +2 +select a from t1 +where a in (select a from t1 where a<=2 union (select a from t2 where b>40)); +a +7 +1 +2 +select a from t1 +where a in ((select a from t1 where a<=2) union select a from t2 where b>40); +a +7 +1 +2 +select a from t1 +where a in ((select a from t1 where a<=2) union (select a from t2 where b>40)); +a +7 +1 +2 +# 6.4. select with CTE and union in IN subquery +with t as (select a from t1 where a<=2) +select a from t1 +where a in ((select a from t) union (select a from t2 where b>40)); +a +7 +1 +2 +with t as ((select a from t1 where a<=2)) +select a from t1 +where a in ((select a from t) union (select a from t2 where b>40)); +a +7 +1 +2 +with t as ((select a from t1 where a<=2) order by a desc limit 1) +select a from t1 +where a in ((select a from t) union (select a from t2 where b>40)); +a +7 +2 +# 6.5. NOT IN subquery +select a from t1 where a not in (1,8,7); +a +3 +2 +4 +select a from t1 where a not in (values (1), (8), (7)); +a +3 +2 +4 +select a from t1 where a not in (select a from t2 where a <= 3); +a +7 +4 +select a from t1 where a not in ((select a from t2 where a <= 3)); +a +7 +4 +select a from t1 +where a not in (select a from t1 where a<=2 +union +select a from t2 where b>40); +a +3 +4 +select a from t1 +where a not in (select a from t1 where a<=2 +union +(select a from t2 where b>40)); +a +3 +4 +select a from t1 +where a not in ((select a from t1 where a<=2) +union +select a from t2 where b>40); +a +3 +4 +select a from t1 +where a not in ((select a from t1 where a<=2) +union +(select a from t2 where b>40)); +a +3 +4 +with t as ((select a from t1 where a<=2) order by a desc limit 1) +select a from t1 +where a not in ((select a from t) union (select a from t2 where b>40)); +a +3 +1 +4 +# 6.6. IN subquery in expression +select 1 in (select a from t1) as r, b from t2 where b > 30; +r b +1 70 +1 40 +select (1 in (select a from t1)) as r, b from t2 where b > 30; +r b +1 70 +1 40 +select 1 in ((select a from t1)) as r, b from t2 where b > 30; +r b +1 70 +1 40 +select ((1 in ((select a from t1)))) as r, b from t2 where b > 30; +r b +1 70 +1 40 +select ((1 in ((select a from t1)))) as r, b from t2 where b > 30; +r b +1 70 +1 40 +select b, if (a in (select a from t1 where a > 3),10,20) as r from t2; +b r +30 20 +70 10 +10 20 +20 20 +40 10 +select b, if (a in ((select a from t1 where a > 3)),10,20) as r from t2; +b r +30 20 +70 10 +10 20 +20 20 +40 10 +# 6.7. IN subquery in SF and SP +create function f1(x int) returns int +return (x in ((select a from t1 where a <= 4))); +select b, f1(a) from t2 where b > 20; +b f1(a) +30 1 +70 0 +40 1 +drop function f1; +create function f2(x int) returns int +if x in ((select a from t1 where a <= 4)) +then return 100; +else return 200; +end if | +select b, f2(a) from t2 where b > 20; +b f2(a) +30 100 +70 200 +40 100 +drop function f2; +# 6.8. EXISTS subquery +select exists (select a from t1 where t1.a=t2.a) as r, b from t2 where b > 30; +r b +1 70 +1 40 +select exists ((select a from t1 where t1.a=t2.a)) as r, b from t2 where b > 30; +r b +1 70 +1 40 +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from t2 where exists ((select * from s where s.a=t2.a)); +a b +3 30 +7 70 +4 40 +with t as ((select a from t1 where a<=2) order by a desc limit 1) +select a from t2 +where not exists ((select a from t where t.a=t2.a) +except +(select a from t where a>40)); +a +3 +7 +1 +4 +# 6.9. EXISTS subquery with SF and SP +create function f1(x int) returns int +return exists (((select * from t1 where x=a and a <= 4))); +select b, f1(a) from t2 where b > 20; +b f1(a) +30 1 +70 0 +40 1 +drop function f1; +create function f2(x int) returns int +if not exists (((select * from t1 where x=a and a <= 4))) +then return 100; +else return 200; +end if | +select b, f2(a) from t2 where b > 20; +b f2(a) +30 200 +70 100 +40 200 +drop function f2; +# 6.10. subquery with ANY +select a from t1 where a = any(select a from t2 where a <= 3); +a +3 +1 +2 +select a from t1 where a = any((select a from t2 where a <= 3)); +a +3 +1 +2 +select a from t1 +where a = any (select a from t1 where a<=2 +union +select a from t2 where b>40); +a +7 +1 +2 +select a from t1 +where a = any(select a from t1 where a<=2 +union +(select a from t2 where b>40)); +a +7 +1 +2 +select a from t1 +where a = any((select a from t1 where a<=2) +union +select a from t2 where b>40); +a +7 +1 +2 +select a from t1 +where a = any((select a from t1 where a<=2) +union +(select a from t2 where b>40)); +a +7 +1 +2 +# 7. create table as +# 7.1. create table as simple select +create table t as select * from t1 where a <=3; +select * from t; +a +3 +1 +2 +drop table t; +create table t select * from t1 where a <=3; +select * from t; +a +3 +1 +2 +drop table t; +create table t as (select * from t1 where a <=3); +select * from t; +a +3 +1 +2 +drop table t; +create table t (select * from t1 where a <=3); +select * from t; +a +3 +1 +2 +drop table t; +create table t as ((select * from t1 where a <=3)); +select * from t; +a +3 +1 +2 +drop table t; +create table t ((select * from t1 where a <=3)); +select * from t; +a +3 +1 +2 +drop table t; +create table t(a decimal(10,2)) as select * from t1 where a <=3; +select * from t; +a +3.00 +1.00 +2.00 +drop table t; +create table t(a decimal(10,2)) select * from t1 where a <=3; +select * from t; +a +3.00 +1.00 +2.00 +drop table t; +create table t(a decimal(10,2)) as (select * from t1 where a <=3); +select * from t; +a +3.00 +1.00 +2.00 +drop table t; +create table t(a decimal(10,2)) (select * from t1 where a <=3); +select * from t; +a +3.00 +1.00 +2.00 +drop table t; +create table t(a decimal(10,2)) as ((select * from t1 where a <=3)); +select * from t; +a +3.00 +1.00 +2.00 +drop table t; +create table t(a decimal(10,2)) ((select * from t1 where a <=3)); +select * from t; +a +3.00 +1.00 +2.00 +drop table t; +create table t(a decimal(10,2), b int) as +((select a, a as b from t1 where a <=3)); +select * from t; +a b +3.00 3 +1.00 1 +2.00 2 +drop table t; +create table t(a decimal(10,2), b int) +((select a, a as b from t1 where a <=3)); +select * from t; +a b +3.00 3 +1.00 1 +2.00 2 +drop table t; +# 7.2. create table as tailed select +create table t as select * from t1 where a <=3 order by 1; +select * from t; +a +1 +2 +3 +drop table t; +create table t select * from t1 where a <=3 order by 1; +select * from t; +a +1 +2 +3 +drop table t; +create table t as select * from t1 where a <=3 order by 1 desc limit 2; +select * from t; +a +3 +2 +drop table t; +create table t select * from t1 where a <=3 order by 1 desc limit 2; +select * from t; +a +3 +2 +drop table t; +create table t as ((select * from t1 where a <=3) order by 1 desc) limit 2; +select * from t; +a +3 +2 +drop table t; +create table t ((select * from t1 where a <=3) order by 1 desc) limit 2; +select * from t; +a +3 +2 +drop table t; +# 7.3. create table as select wihout from clause +create table t as select 10; +select * from t; +10 +10 +drop table t; +create table t select 10; +select * from t; +10 +10 +drop table t; +# 7.4. create table as union of selects wihout from clause +create table t as select 10 union select 70; +select * from t; +10 +10 +70 +drop table t; +create table t select 10 union select 70; +select * from t; +10 +10 +70 +drop table t; +# 7.5. create table as TVC +create table t as values (7), (3), (8); +select * from t; +7 +7 +3 +8 +drop table t; +create table t values (7), (3), (8); +select * from t; +7 +7 +3 +8 +drop table t; +create table t as (values (7), (3), (8)); +select * from t; +7 +7 +3 +8 +drop table t; +create table t (values (7), (3), (8)); +select * from t; +7 +7 +3 +8 +drop table t; +create table t as ((values (7), (3), (8))); +select * from t; +7 +7 +3 +8 +drop table t; +create table t ((values (7), (3), (8))); +select * from t; +7 +7 +3 +8 +drop table t; +# 7.6. create table as select with CTE +create table t as +with s(a) as (select * from t1 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +a +3 +2 +drop table t; +create table t +with s(a) as (select * from t1 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +a +3 +2 +drop table t; +create table t as +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s; +select * from t; +a +4 +3 +8 +7 +drop table t; +create table t +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s; +select * from t; +a +4 +3 +8 +7 +drop table t; +create table t as +with s(a) as (select * from t1 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +a +3 +2 +drop table t; +# 7.7. create table as union with CTE +create table t as +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +a +8 +7 +3 +1 +2 +drop table t; +create table t +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +a +8 +7 +3 +1 +2 +drop table t; +create table t +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +a +8 +7 +3 +1 +2 +drop table t; +create table t as +with s as +( ( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +a +8 +7 +3 +1 +2 +drop table t; +create table t +with s as +( ( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +a +8 +7 +3 +1 +2 +drop table t; +create table t as +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s where a>=7 union select a from s where a<4; +select * from t; +a +8 +7 +3 +drop table t; +create table t +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s where a>=7 union select a from s where a<4; +select * from t; +a +8 +7 +3 +drop table t; +create table t as +with s as +( select * from t1 where a <=4 or a=7 ) +select * from s where a>=7 union select a from s where a<3; +select * from t; +a +7 +1 +2 +drop table t; +create table t +with s as +(select * from t1 where a <=4 or a=7) +select * from s where a>=7 union select a from s where a<3; +select * from t; +a +7 +1 +2 +drop table t; +create table t (a int) +with s as +( select * from t1 where a <=4 or a=7 ) +select * from s where a>=7 union select a from s where a<3; +select * from t; +a +7 +1 +2 +drop table t; +create table t (a int) +with s as +(select * from t1 where a <=4 or a=7) +select * from s where a>=7 union select a from s where a<3; +select * from t; +a +7 +1 +2 +drop table t; +create table t +with s as +( select * from t1 where a <=4 or a=7 ) +select * from s where a>=7 union select a from s where a<3 +order by a desc limit 2; +select * from t; +a +7 +2 +drop table t; +create table t +( with s as +( select * from t1 where a <=4 or a=7 ) +select * from s where a>=7 union select a from s where a<3 +order by a desc limit 2 ); +select * from t; +a +7 +2 +drop table t; +# 8. insert +create table t (c int, d int); +# 8.1. insert simple select +insert into t select * from t2 where a <=3; +select * from t; +c d +3 30 +1 10 +2 20 +delete from t; +insert into t(c) select t2.a from t2 where a <=3; +select * from t; +c d +3 NULL +1 NULL +2 NULL +delete from t; +insert into t (select * from t2 where a <=3); +select * from t; +c d +3 30 +1 10 +2 20 +delete from t; +insert into t(c) (select t2.a from t2 where a <=3); +select * from t; +c d +3 NULL +1 NULL +2 NULL +delete from t; +insert into t ((select * from t2 where a <=3)); +select * from t; +c d +3 30 +1 10 +2 20 +delete from t; +insert into t(c) ((select t2.a from t2 where a <=3)); +select * from t; +c d +3 NULL +1 NULL +2 NULL +delete from t; +drop table t; +create table t(c decimal(10,2)); +insert into t select * from t1 where a <=3; +select * from t; +c +3.00 +1.00 +2.00 +delete from t; +insert into t(c) select * from t1 where a <=3; +select * from t; +c +3.00 +1.00 +2.00 +delete from t; +insert into t (select * from t1 where a <=3); +select * from t; +c +3.00 +1.00 +2.00 +delete from t; +insert into t(c) (select * from t1 where a <=3); +select * from t; +c +3.00 +1.00 +2.00 +delete from t; +insert into t ((select * from t1 where a <=3)); +select * from t; +c +3.00 +1.00 +2.00 +delete from t; +insert into t(c) ((select * from t1 where a <=3)); +select * from t; +c +3.00 +1.00 +2.00 +delete from t; +drop table t; +create table t(a decimal(10,2), b int); +insert into t ((select * from t2 where a <=3)); +select * from t; +a b +3.00 30 +1.00 10 +2.00 20 +delete from t; +insert into t(a) ((select a from t2 where a <=3)); +select * from t; +a b +3.00 NULL +1.00 NULL +2.00 NULL +delete from t; +drop table t; +create table t(c int, d int); +# 8.2. insert tailed select +insert into t select * from t2 where a <=3 order by 1; +select * from t; +c d +1 10 +2 20 +3 30 +delete from t; +insert into t(c) select a from t2 where a <=3 order by 1; +select * from t; +c d +1 NULL +2 NULL +3 NULL +delete from t; +insert into t select * from t2 where a <=3 order by 1 desc limit 2; +select * from t; +c d +3 30 +2 20 +delete from t; +insert into t(c) select a from t2 where a <=3 order by 1 desc limit 2; +select * from t; +c d +3 NULL +2 NULL +delete from t; +insert into t ((select * from t2 where a <=3) order by 1 desc) limit 2; +select * from t; +c d +3 30 +2 20 +delete from t; +insert into t(c) ((select a from t2 where a <=3) order by 1 desc) limit 2; +select * from t; +c d +3 NULL +2 NULL +delete from t; +# 8.3. insert select without from clause +insert into t select 10, 20; +select * from t; +c d +10 20 +delete from t; +insert into t(c) select 10; +select * from t; +c d +10 NULL +delete from t; +# 8.4. insert union of selects without from clause +insert into t select 10,20 union select 70,80; +select * from t; +c d +10 20 +70 80 +delete from t; +insert into t(c) select 10 union select 70; +select * from t; +c d +10 NULL +70 NULL +delete from t; +# 8.5. insert TVC +insert into t values (7,70), (3,30), (8,80); +select * from t; +c d +7 70 +3 30 +8 80 +delete from t; +insert into t(c) values (7), (3), (8); +select * from t; +c d +7 NULL +3 NULL +8 NULL +delete from t; +insert into t (values (7,70), (3,30), (8,80)); +select * from t; +c d +7 70 +3 30 +8 80 +delete from t; +insert into t(c) (values (7), (3), (8)); +select * from t; +c d +7 NULL +3 NULL +8 NULL +delete from t; +insert into t ((values (7,70), (3,30), (8,80))); +select * from t; +c d +7 70 +3 30 +8 80 +delete from t; +insert into t(c) ((values (7), (3), (8))); +select * from t; +c d +7 NULL +3 NULL +8 NULL +delete from t; +# 8.7. insert simple select with CTE +insert into t +with s(a,b) as (select * from t2 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +c d +3 30 +2 20 +delete from t; +insert into t(c) +with s(a) as (select a from t2 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +c d +3 NULL +2 NULL +delete from t; +insert into t +with s as +( (select * from t2 where a <=4 order by 1 desc limit 2) +union +values (3,30), (8,80), (7,70) ) +select * from s; +select * from t; +c d +4 40 +3 30 +8 80 +7 70 +delete from t; +insert into t(c) +with s as +( (select a from t2 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s; +select * from t; +c d +4 NULL +3 NULL +8 NULL +7 NULL +delete from t; +# 8.8. insert into union with CTE +insert into t(c) +with s as +( (select a from t2 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +c d +8 NULL +7 NULL +3 NULL +1 NULL +2 NULL +delete from t; +insert into t +with s as +( (select * from t2 where a <=4 order by 1 desc limit 2) +union +values (3,30), (8,80), (7,70) ) +select * from s where a>=7 union select * from s where a<4; +select * from t; +c d +8 80 +7 70 +3 30 +delete from t; +insert into t(c) +with s as +( (select a from t2 where a <=4 order by 1 desc limit 2) +union +values (3), (8), (7) ) +select * from s where a>=7 union select * from s where a<4; +select * from t; +c d +8 NULL +7 NULL +3 NULL +delete from t; +insert into t +with s as +( select * from t2 where a <=4 or a=7 ) +select * from s where a>=7 union select * from s where a<3; +select * from t; +c d +7 70 +1 10 +2 20 +delete from t; +insert into t(c) +with s as +( select a from t2 where a <=4 or a=7 ) +select * from s where a>=7 union select * from s where a<3; +select * from t; +c d +7 NULL +1 NULL +2 NULL +delete from t; +drop table t; +# 9. derived table +# 9.1. derived table as [tailed] simple select +select * from (select * from t1) as dt; +a +3 +7 +1 +2 +4 +select * from ((select * from t1)) as dt; +a +3 +7 +1 +2 +4 +select * from (((select * from t1))) as dt; +a +3 +7 +1 +2 +4 +select * from (select * from t1 order by a) as dt; +a +3 +7 +1 +2 +4 +select * from (select a from t1 order by a) as dt; +a +3 +7 +1 +2 +4 +select * from (select a from t1 order by 1) as dt; +a +3 +7 +1 +2 +4 +select * from (select a from t1 order by t1.a) as dt; +a +3 +7 +1 +2 +4 +select * from ((select * from t1 order by t1.a limit 2)) as dt; +a +1 +2 +select * from ((select * from t2 order by a limit 2) order by b desc) dt; +a b +1 10 +2 20 +select * from ((select a from t1 where a=1) order by 1 desc) dt; +a +1 +# 9.2. derived table as select with two tails +select * from +((select * from t2 order by t2.a limit 2) order by b desc) dt; +a b +1 10 +2 20 +select * from +((select * from t2 order by t2.a limit 2) order by b desc) as dt; +a b +1 10 +2 20 +select * from +(((select * from t2 order by t2.a limit 2) order by b desc )) as dt; +a b +1 10 +2 20 +select * from +(((select * from t2 order by t2.a) limit 2) order by b desc) dt; +a b +1 10 +2 20 +select * from +((select * from t2 order by a limit 2) order by b desc) dt; +a b +1 10 +2 20 +select * from +((select a from t1 where a=1) order by 1 desc) as dt; +a +1 +select * from +((select * from t2 order by t2.a limit 2) order by b desc) as dt; +a b +1 10 +2 20 +# 9.3. derived table as union +select * from (select a from t1 union select a from t1) as dt; +a +3 +7 +1 +2 +4 +select * from (select a from t1 union all select a from t1) as dt; +a +3 +7 +1 +2 +4 +3 +7 +1 +2 +4 +select * from (select a from t1 union select b from t2) as dt; +a +3 +7 +1 +2 +4 +30 +70 +10 +20 +40 +select * from +((select a from t1) union (select a from t1)) as dt; +a +3 +7 +1 +2 +4 +select * from +((select a from t1) union (select b from t2)) as dt; +a +3 +7 +1 +2 +4 +30 +70 +10 +20 +40 +select * from +(select a from t1 where a=1 union select a from t1 where a=3) dt; +a +1 +3 +select * from +((select a from t1 where a=1) union select a from t1 where a=3) dt; +a +1 +3 +select * from +(((select a from t1 where a=1) union select a from t1 where a=3)) dt; +a +1 +3 +select * from +(((select a from t1 where a<=3) union (select a from t1 where a=3))) as dt; +a +3 +1 +2 +select * from +(select a from t1 where a=1 union (select a from t1 where a=3)) as dt; +a +1 +3 +select * from +((select a from t1 where a=1 union (select a from t1 where a=3))) as dt; +a +1 +3 +select * from +(((select a from t1 where a=1 union (select a from t1 where a=3)))) as dt; +a +1 +3 +select * from +( select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=7 ) as dt; +a +1 +3 +7 +select * from +( (select a from t1 where a=1 order by a) +union +select a from t1 where a=3 ) as dt; +a +1 +3 +select * from +( (select a from t1 where a!=3 order by a desc) +union +select a from t1 where a=3 ) as dt; +a +7 +1 +2 +4 +3 +select * from +( ( select a from t1 where a <=3 except select a from t1 where a >=3 ) +union +select a from t1 where a=7 ) as dt; +a +1 +2 +7 +select * from +( ( ( select a from t1 where a <=3 +except +select a from t1 where a >=3 ) +union +select a from t1 where a=7 ) ) as dt; +a +1 +2 +7 +select * from +( select a from t1 where a=1 +union +select a from t1 where a=3 +order by a desc) as dt; +a +3 +1 +select *from +( (select a from t1 limit 2) +union +select a from t1 where a=3 +order by a desc) as dt; +a +7 +3 +select * from +( select a from t1 where a=4 +union +(select a from t1 where a <=4 limit 2) +order by a desc ) as dt; +a +4 +3 +1 +select * from +( ( select a from t1 where a=4 +union +( select a from t1 where a <=4 order by a ) ) +order by a desc limit 2 ) as dt; +a +4 +3 +select * from +( ( select a from t1 where a <=3 except select a from t1 where a >=3 ) +union +select a from t1 where a=7 order by a desc ) as dt; +a +7 +2 +1 +select * from +( ( select a from t1 where a!=3 order by a desc ) +union +select a from t1 where a=3 +order by a desc ) as dt; +a +7 +4 +3 +2 +1 +select * from +( (select a from t1 where a=1) +union +(select a from t1 where a=3) +order by a desc ) as dt; +a +3 +1 +select * from +( ( select a from t1 where a=1 +union +select a from t1 where a=3 ) +order by a desc ) as dt; +a +3 +1 +select * from +( ( ( select a from t1 where a=1 ) +union +( select a from t1 where a=3 ) ) +order by a desc ) as dt; +a +3 +1 +select * from +( ( select a from t1 where a=1 +union +select a from t1 where a=3 ) +order by 1 desc ) as dt; +a +3 +1 +select * from +( ( (select a from t1 where a=1 +union +select a from t1 where a=3) ) order by 1 desc ) as dt; +a +3 +1 +select * from +((((select a from t1 where a=1) union (select a from t1 where a=3))) +order by 1 desc ) as dt; +a +3 +1 +select * from +( ( (select a from t1 where a=1 ) +union +(select a from t1 where a=3) ) +order by 1 desc ) as dt; +a +3 +1 +select * from +( select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 +union +select a from t1 where a=4 ) as dt; +a +1 +3 +2 +4 +select * from +( ( select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 ) +union +select a from t1 where a=4 ) as dt; +a +1 +3 +2 +4 +select * from +( (select a from t1 where a=1 union select a from t1 where a=3) +union +(select a from t1 where a=2 union select a from t1 where a=4) ) as dt; +a +1 +3 +2 +4 +select * from +( (select a from t1 where a=1 union (select a from t1 where a=3)) +union +((select a from t1 where a=2) union select a from t1 where a=4) ) as dt; +a +1 +3 +2 +4 +select * from +( ( ( select a from t1 where a=1) +union +select a from t1 where a=3 ) +union +select a from t1 where a=2 +union +select a from t1 where a=4 ) as dt; +a +1 +3 +2 +4 +select * from +( ( ( ( select a from t1 where a=1) +union +select a from t1 where a=3 ) +union +select a from t1 where a=2 ) +union +select a from t1 where a=4 ) as dt; +a +1 +3 +2 +4 +select * from +( select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 +union +(select a from t1 where a=4) ) as dt; +a +1 +3 +2 +4 +select * from +( select a from t1 where a=1 +union +select a from t1 where a=3 +union +( select a from t1 where a=2 +union +( select a from t1 where a=4 ) ) ) as dt; +a +1 +3 +2 +4 +select * from +( select a from t1 where a=1 +union +( select a from t1 where a=3 +union +( select a from t1 where a=2 +union +( select a from t1 where a=4 ) ) ) ) as dt; +a +1 +3 +2 +4 +select * from +( ( ( select a from t1 where a=1 union select a from t1 where a=3 ) +order by a desc limit 2 ) +union +( ( select a from t1 where a=2 union select a from t1 where a=4 ) +order by a desc limit 1 ) ) as dt; +a +3 +1 +4 +select * from +( ( ( select a from t1 where a=1 union select a from t1 where a=3 ) +order by a desc limit 2 ) +union +( ( select a from t1 where a=2 union select a from t1 where a=4 ) +order by a desc limit 2 ) +order by a) as dt; +a +1 +2 +3 +4 +select * from +( ( select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 order by a desc limit 2 ) +union +select a from t1 where a=4 +order by a limit 3 ) as dt; +a +2 +3 +4 +select * from +( ( select a from t1 where a=1 +union +select a from t1 where a=3 order by a desc limit 2) +union +select a from t1 where a=2 order by a desc limit 2 ) as dt; +a +3 +2 +select * from +( ( ( select a from t1 where a >= 2 +union +select a from t1 where a=1 order by a desc limit 2 ) +union +select a from t1 where a=3 order by a limit 2 ) +union +select a from t1 where a=1 ) as dt; +a +3 +4 +1 +# 9.3. derived table as [tailed] TVC +select * from +( values (3), (7), (1) ) as dt; +3 +3 +7 +1 +select * from +( (values (3), (7), (1)) ) as dt; +3 +3 +7 +1 +select * from +(((values (3), (7), (1)))) as dt; +3 +3 +7 +1 +select * from +( values (3), (7), (1) order by 1 limit 2 ) as dt; +3 +1 +3 +select * from +( (values (3), (7), (1)) order by 1 limit 2 ) as dt; +3 +1 +3 +select * from +( ((values (3), (7), (1))) order by 1 limit 2 ) as dt; +3 +1 +3 +select * from +( (((values (3), (7), (1))) order by 1 limit 2) ) as dt; +3 +1 +3 +select * from +( ( (values (3), (7), (1) limit 2) order by 1 desc) ) as dt; +3 +3 +7 +select * from +( ((values (3), (7), (1)) order by 1 desc) limit 2 ) as dt; +3 +7 +3 +select * from +( (((values (3), (7), (1)) order by 1 desc) limit 2) ) as dt; +3 +7 +3 +# 9.3. derived table as union of TVCs +select * from +( values (3), (7), (1) union values (3), (4), (2) ) dt; +3 +3 +7 +1 +4 +2 +select * from +( values (3), (7), (1) union all values (3), (4), (2) ) as dt; +3 +3 +7 +1 +3 +4 +2 +select * from +( values (3), (7), (1) union values (3), (4), (2) ) as dt; +3 +3 +7 +1 +4 +2 +select * from +( values (3), (7), (1) except values (3), (4), (2) ) as dt; +3 +7 +1 +select * from +( (values (3), (7), (1)) union (values (3), (4), (2)) ) as dt; +3 +3 +7 +1 +4 +2 +select * from +( (values (3), (7), (1)) +union +(values (3), (4), (2)) +union values (5), (7) ) dt; +3 +3 +7 +1 +4 +2 +5 +select * from +( (values (3), (7), (1)) +union +(values (3), (4), (2)) +union +(values (5), (7)) ) as dt; +3 +3 +7 +1 +4 +2 +5 +select * from +( (values (3), (7), (1) +union +values (3), (4), (2)) +union +values (5), (7) ) as dt; +3 +3 +7 +1 +4 +2 +5 +select * from +( values (3), (7), (1) +union (values (3), (4), (2) +union +values (5), (7)) ) as dt; +3 +3 +7 +1 +4 +2 +5 +select * from +( (values (3), (7), (1) +union +((values (3), (4), (2) +union values (5), (7)))) ) dt; +3 +3 +7 +1 +4 +2 +5 +select * from +( values (3), (7), (1) +union +values (3), (4), (2) +order by 1 ) as dt; +3 +1 +2 +3 +4 +7 +select * from +( (values (3), (7), (1) union values (3), (4), (2)) order by 1 ) as dt; +3 +1 +2 +3 +4 +7 +select * from +( (values (3), (7), (1) union values (3), (4), (2)) order by 1 ) as dt; +3 +1 +2 +3 +4 +7 +select * from +( values (3), (7), (1) union (values (3), (4), (2)) order by 1 ) as dt; +3 +1 +2 +3 +4 +7 +select * from +( (values (3), (7), (1) union values (3), (4), (2)) order by 1 ) as dt; +3 +1 +2 +3 +4 +7 +select * from +( ((values (3), (7), (1)) union values (3), (4), (2)) order by 1 ) as dt; +3 +1 +2 +3 +4 +7 +select * from +( (values (3), (7), (1) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) ) as dt; +3 +1 +3 +4 +select * from +( ((values (3), (7), (1) order by 1) limit 2) +union +((values (3), (4), (2) order by 1 desc) limit 2) ) as dt; +3 +1 +3 +4 +select * from +( (((values (3), (7), (1)) order by 1) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) ) as dt; +3 +1 +3 +4 +select * from +( (values (3), (7), (1) order by 1 limit 2) +union +values (3), (4), (2) +order by 1 limit 3 ) as dt; +3 +1 +2 +3 +select * from +( ((values (3), (7), (1)) order by 1 limit 2) +union +((values (3), (4), (2) order by 1 desc) limit 2) +order by 1 limit 3 ) as dt; +3 +1 +3 +4 +select * from +( (select a from t1 where a <=3 order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) ) dt; +a +1 +2 +4 +3 +select * from +( ((select a from t1 where a <=3) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) ) as dt; +a +1 +2 +4 +3 +select * from +( (((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) ) as dt; +a +1 +2 +4 +3 +select * from +( ( (((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) ) ) dt; +a +1 +2 +4 +3 +select * from +( (select a from t1 where a <=3 order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) +order by a ) as dt; +a +1 +2 +3 +4 +select * from +( ((select a from t1 where a <=3) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) +order by a ) as dt; +a +1 +2 +3 +4 +select * from +( (((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) +order by a ) as dt; +a +1 +2 +3 +4 +select * from +( (((values (3), (4), (2)) order by 1 desc) limit 2) ) as dt; +3 +4 +3 +select * from +( ( (((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) ) +order by a ) as dt; +a +1 +2 +3 +4 +select * from +( (values (3), (4), (2) order by 1 desc limit 2) +union +(select a from t1 where a <=3 order by 1 limit 2) ) as dt; +3 +4 +3 +1 +2 +select * from +( (values (3), (4), (2) order by 1 desc limit 2) +union +((select a from t1 where a <=3) order by 1 limit 2) ) as dt; +3 +4 +3 +1 +2 +select * from +( (((values (3), (4), (2)) order by 1 desc) limit 2) +union +(((select a from t1 where a <=3) order by 1) limit 2) ) as dt; +3 +4 +3 +1 +2 +select * from +( (((values (3), (4), (2)) order by 1 desc) limit 2) +union +(((select a from t1 where a <=3) order by a) limit 2) +order by 1 ) as dt; +3 +1 +2 +3 +4 +select * from +( ( select a from t1 where a=1 +union +values (3), (4), (2) order by 1 desc ) +union +select a from t1 where a=2 order by a desc limit 3 ) as dt; +a +4 +3 +2 +# 9.4. derived table as [tailed] simple select with CTE +select * from +( with t as (select * from t1 where a <=3) +select * from t ) as dt; +a +3 +1 +2 +select * from +( with t as (select * from t1 where a <=3) +(select * from t) ) as dt; +a +3 +1 +2 +select * from +( with t as (select * from t1 where a <=3) +((select * from t)) ) as dt; +a +3 +1 +2 +select * from +( with t as ((select * from t1 where a <=3)) +select * from t ) as dt; +a +3 +1 +2 +select * from +( with t as (((select * from t1 where a <=3))) +select * from t ) as dt; +a +3 +1 +2 +select * from +( with t as (select * from t1 where a <=3) +select * from t order by a ) as dt; +a +3 +1 +2 +select * from +( with t as (select * from t1 where a <=3) +(select * from t) order by a ) as dt; +a +3 +1 +2 +select * from +( with t as (select * from t1 where a <=3) +(select * from t) order by a desc limit 2 ) as dt; +a +3 +2 +select * from +( with t as (select * from t1 where a >=2 order by a limit 2) +select * from t ) as dt; +a +2 +3 +select * from +( with t as (((select * from t1 where a >=2) order by a desc) limit 2) +select * from t ) as dt; +a +7 +4 +select * from +( with t as (select * from t1 where a >=2 order by a desc limit 2) +select * from t order by a ) as dt; +a +7 +4 +# 9.5. derived table as tailed union with CTE +select * from +( with t as (select * from t1 where a <=3) +select a from t1 where a=1 union select a from t where a=3 ) as dt; +a +1 +3 +select * from +( with t as (select * from t1 where a <=3) +(select a from t) union (select b from t2) ) as dt; +a +3 +1 +2 +30 +70 +10 +20 +40 +select * from +( with t as (select * from t1 where a <=3) +(select a from t) union (select b as a from t2) order by a desc ) as dt; +a +70 +40 +30 +20 +10 +3 +2 +1 +select * from +( with t as (select * from t1 where a < 3 union select * from t1 where a > 3) +select a from t1 where a=1 union select a from t where a=7 ) as dt; +a +1 +7 +select * from +( with t as +( select * from t1 where a < 3 +union +select * from t1 where a > 3 +order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 ) as dt; +a +4 +7 +select * from +( with t as +( select * from t1 where a < 3 +union +select * from t1 where a > 3 +order by a desc limit 3 ) +select a from t1 where a=4 +union +select a from t where a=7 +order by a desc ) as dt; +a +7 +4 +select * from +( with t as +( (select * from t1 where a < 3) +union +(select * from t1 where a > 3) +order by a desc limit 3 ) +select a from t1 where a=4 +union select a from t where a=7 +order by a desc ) dt; +a +7 +4 +select * from +( with t as +( (select * from t1 where a < 3) +union +(select * from t1 where a > 3) +order by a desc limit 3 ) +(select a from t1 where a=4 +union +select a from t where a=7 +order by a desc) ) as dt; +a +7 +4 +select * from +( with t as +( (select * from t1 where a < 3) +union +(select * from t1 where a > 3) +order by a desc limit 3 ) +((select a from t1 where a=4 +union +select a from t where a=7) order by a desc) ) as dt; +a +7 +4 +select * from +( with t as +( select * from t1 where a < 3 +union +values (4), (7) +order by a desc limit 3 ) +select a from t1 where a=4 +union +select a from t where a=7 +order by a desc ) dt; +a +7 +4 +select * from +( with t(a) as +( values (2), (1) +union +(values (4), (7)) +order by 1 desc limit 3 ) +select a from t1 where a=4 +union select a from t where a=7 +order by a desc ) as dt; +a +7 +4 +select * from +( with t(a) as +( (values (2), (1)) +union +(values (4), (7) order by 1 desc) +order by 1 desc limit 3 ) +select a from t1 where a=1 +union +select a from t where a=7 order by a desc ) as dt; +a +7 +1 +select * from +( with t(a) as +( (values (2), (1)) +union +(values (4), (7) order by 1 desc) +order by 1 limit 3 ) +select a from t where a=1 union values (7) order by a desc ) as dt; +a +7 +1 +select * from +( with t(a) as +( (values (2), (1)) +union +(values (4), (7) order by 1 desc ) ) +select a from t where a=1 union select 7 order by a desc ) as dt; +a +7 +1 +select * from +( with t as (select * from t1 where a < 3), +s as (select * from t1 where a > 3) +select a from t where a=1 +union select a from s where a=7 +order by a desc ) dt; +a +7 +1 +select * from +( with t as (select * from t1 where a < 3), +s as (select * from t1 where a > 3) +(select a from t where a=1 +union +select a from s where a=7 order by a desc) ) dt; +a +7 +1 +select * from +( with t as (select * from t1 where a < 3), +s as (select * from t1 where a > 3) +(select a from t where a=1 +union +select a from s where a=7) +order by a desc ) dt; +a +7 +1 +10. view +10.1. view as simple select +create view v1 as +select * from t1; +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 select `t1`.`a` AS `a` from `t1` latin1 latin1_swedish_ci +select * from v1; +a +3 +7 +1 +2 +4 +drop view v1; +create view v1 as +select 2*a as c from t1; +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 select 2 * `t1`.`a` AS `c` from `t1` latin1 latin1_swedish_ci +select * from v1; +c +6 +14 +2 +4 +8 +drop view v1; +create view v1(c) as +select 2*a from t1; +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 select 2 * `t1`.`a` AS `c` from `t1` latin1 latin1_swedish_ci +select * from v1; +c +6 +14 +2 +4 +8 +drop view v1; +create view v1 as +((select * from t1)); +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 (select `t1`.`a` AS `a` from `t1`) latin1 latin1_swedish_ci +select * from v1; +a +3 +7 +1 +2 +4 +drop view v1; +10.2. view as tailed simple select +create view v1 as +select * from t1 order by 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 select `t1`.`a` AS `a` from `t1` order by `t1`.`a` latin1 latin1_swedish_ci +select * from v1; +a +1 +2 +3 +4 +7 +drop view v1; +create view v1 as +(select * from t2 order by a limit 2) order by b desc; +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 select `__3`.`a` AS `a`,`__3`.`b` AS `b` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` order by `test`.`t2`.`a` limit 2) `__3` order by `__3`.`b` desc latin1 latin1_swedish_ci +select * from v1; +a b +2 20 +1 10 +drop view v1; +10.3. view as union +create view v1 as +select a from t1 union select b from t2; +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 select `t1`.`a` AS `a` from `t1` union select `t2`.`b` AS `b` from `t2` latin1 latin1_swedish_ci +select * from v1; +a +3 +7 +1 +2 +4 +30 +70 +10 +20 +40 +drop view v1; +create view v1 as +(select a from t1) union (select b from t2); +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 (select `t1`.`a` AS `a` from `t1`) union (select `t2`.`b` AS `b` from `t2`) latin1 latin1_swedish_ci +select * from v1; +a +3 +7 +1 +2 +4 +30 +70 +10 +20 +40 +drop view v1; +create view v1 as +(select a from t1 where a=1) union select a from t1 where a=3; +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 (select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 1) union select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 3 latin1 latin1_swedish_ci +select * from v1; +a +1 +3 +drop view v1; +create view v1 as +((select a from t1 where a<=3) union (select a from t1 where a=3)); +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 (select `t1`.`a` AS `a` from `t1` where `t1`.`a` <= 3) union (select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 3) latin1 latin1_swedish_ci +select * from v1; +a +3 +1 +2 +drop view v1; +create view v1 as +select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=7; +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 select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 1 union select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 3 union select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 7 latin1 latin1_swedish_ci +select * from v1; +a +1 +3 +7 +drop view v1; +create view v1 as +( ( select a from t1 where a!=3 order by a desc limit 3) +union +select a from t1 where a=3 ); +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 (select `t1`.`a` AS `a` from `t1` where `t1`.`a` <> 3 order by `t1`.`a` desc limit 3) union select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 3 latin1 latin1_swedish_ci +select * from v1; +a +7 +4 +2 +3 +drop view v1; +create view v1 as +( select a from t1 where a <=3 except select a from t1 where a >=3 ) +union +select a from t1 where a=7; +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 select `__5`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` <= 3 except select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` >= 3) `__5` union select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 7 latin1 latin1_swedish_ci +select * from v1; +a +1 +2 +7 +drop view v1; +create view v1 as +(select a from t1 limit 2) union select a from t1 where a=3 order by a desc; +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 (select `t1`.`a` AS `a` from `t1` limit 2) union select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 3 order by `a` desc latin1 latin1_swedish_ci +select * from v1; +a +7 +3 +drop view v1; +create view v1 as +select a from t1 where a=1 +union +( select a from t1 where a=3 +union +( select a from t1 where a=2 +union +( select a from t1 where a=4 ) ) ); +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 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 1 union select `__7`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 3 union select `__6`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 2 union (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 4)) `__6`) `__7` latin1 latin1_swedish_ci +select * from v1; +a +1 +3 +2 +4 +drop view v1; +create view v1 as +( ( select a from t1 where a >= 2 +union +select a from t1 where a=1 order by a desc limit 2 ) +union +select a from t1 where a=3 order by a limit 2 ) +union +select a from t1 where a=1; +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 select `__7`.`a` AS `a` from (select `__5`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` >= 2 union select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 1 order by `a` desc limit 2) `__5` union select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 3 order by `a` limit 2) `__7` union select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 1 latin1 latin1_swedish_ci +select * from v1; +a +3 +4 +1 +drop view v1; +10.4. view as [tailed] TVC +create view v1 as +values (3), (7), (1); +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 values (3),(7),(1) latin1 latin1_swedish_ci +select * from v1; +3 +3 +7 +1 +drop view v1; +create view v1 as +(((values (3), (7), (1))) order by 1); +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 (values (3),(7),(1) order by 1) latin1 latin1_swedish_ci +select * from v1; +3 +1 +3 +7 +drop view v1; +10.5. view as [tailed] union of TVCs +create view v1 as +values (3), (7), (1) union values (3), (4), (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 values (3),(7),(1) union values (3),(4),(2) latin1 latin1_swedish_ci +select * from v1; +3 +3 +7 +1 +4 +2 +drop view v1; +create view v1 as +(values (3), (7), (1) union values (3), (4), (2)) order by 1; +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 values (3),(7),(1) union values (3),(4),(2) order by 1 latin1 latin1_swedish_ci +select * from v1; +3 +1 +2 +3 +4 +7 +drop view v1; +create view v1 as +(values (3), (7), (1) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 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 (values (3),(7),(1) order by 1 limit 2) union (values (3),(4),(2) order by 1 desc limit 2) latin1 latin1_swedish_ci +select * from v1; +3 +1 +3 +4 +drop view v1; +create view v1 as +(values (3), (7), (1) order by 1 limit 2) +union +values (3), (4), (2) +order by 1; +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 (values (3),(7),(1) order by 1 limit 2) union values (3),(4),(2) order by 1 latin1 latin1_swedish_ci +select * from v1; +3 +1 +2 +3 +4 +drop view v1; +10.6. view as [tailed] union of [tailed] select and tailed TVC +create view v1 as +( (((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) ) +order by 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 (select `t1`.`a` AS `a` from `t1` where `t1`.`a` <= 3 order by `t1`.`a` limit 2) union (values (3),(4),(2) order by 1 desc limit 2) order by `a` latin1 latin1_swedish_ci +select * from v1; +a +1 +2 +3 +4 +drop view v1; +create view v1 as +( select a from t1 where a=1 +union +values (3), (4), (2) order by 1 desc ) +union +select a from t1 where a=2 order by a desc limit 3; +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 select `__5`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 1 union values (3),(4),(2) order by 1 desc) `__5` union select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 2 order by `a` desc limit 3 latin1 latin1_swedish_ci +select * from v1; +a +4 +3 +2 +drop view v1; +10.7. view as select with CTE +create view v1 as +with t as (select * from t1 where a <=3) +select * from t; +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 `t1`.`a` AS `a` from `t1` where `t1`.`a` <= 3)select `t`.`a` AS `a` from `t` latin1 latin1_swedish_ci +select * from v1; +a +3 +1 +2 +drop view v1; +create view v1 as +with t as +( select * from t1 where a < 3 +union +select * from t1 where a > 3 +order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7; +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 `t1`.`a` AS `a` from `t1` where `t1`.`a` < 3 union select `t1`.`a` AS `a` from `t1` where `t1`.`a` > 3 order by `a` desc limit 3)select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 4 union select `t`.`a` AS `a` from `t` where `t`.`a` = 7 latin1 latin1_swedish_ci +select * from v1; +a +4 +7 +drop view v1; +10.8. view as union with CTE +create view v1 as +with t as +( (select * from t1 where a < 3) +union +(select * from t1 where a > 3) +order by a desc limit 3 ) +(select a from t1 where a=4 union select a from t where a=7 order by a desc); +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 `t1`.`a` AS `a` from `t1` where `t1`.`a` < 3) union (select `t1`.`a` AS `a` from `t1` where `t1`.`a` > 3) order by `a` desc limit 3)select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 4 union select `t`.`a` AS `a` from `t` where `t`.`a` = 7 order by `a` desc latin1 latin1_swedish_ci +select * from v1; +a +7 +4 +drop view v1; +create view v1 as +with t as +( (select * from t1 where a < 3) +union +(select * from t1 where a > 3) +order by a desc limit 3 ) +(select a from t where a=4 union select a from t where a=7 order by a desc); +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`.`a` < 3) union (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 3) order by `a` desc limit 3)select `t`.`a` AS `a` from `t` where `t`.`a` = 4 union select `t`.`a` AS `a` from ((select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 3) union (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 3) order by `a` desc limit 3) `t` where `t`.`a` = 7 order by `a` desc latin1 latin1_swedish_ci +select * from v1; +a +7 +4 +drop view v1; +create view v1 as +with t(a) as (values (2), (1)) select a from t; +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(a) as (values (2),(1))select `t`.`a` AS `a` from `t` latin1 latin1_swedish_ci +select * from v1; +a +2 +1 +drop view v1; +create view v1 as +with t(a) as +( values (2), (1) +union +(values (4), (7)) +order by 1 desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; +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(a) as (values (2),(1) union (values (4),(7)) order by 1 desc limit 3)select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 4 union select `t`.`a` AS `a` from `t` where `t`.`a` = 7 order by `a` desc latin1 latin1_swedish_ci +select * from v1; +a +7 +4 +drop view v1; +create view v1 as +with t(a) as +( (values (2), (1)) +union +(values (4), (7) order by 1 desc) +order by 1 desc limit 3 ) +select a from t1 where a=1 union select a from t where a=7 order by a desc; +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(a) as ((values (2),(1)) union (values (4),(7) order by 1 desc) order by 1 desc limit 3)select `t1`.`a` AS `a` from `t1` where `t1`.`a` = 1 union select `t`.`a` AS `a` from `t` where `t`.`a` = 7 order by `a` desc latin1 latin1_swedish_ci +select * from v1; +a +7 +1 +drop view v1; +create view v1 as +with t as (select * from t1 where a < 3), +s as (select * from t1 where a > 3) +select a from t where a=1 union select a from s where a=7 order by a desc; +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 `t1`.`a` AS `a` from `t1` where `t1`.`a` < 3), s as (select `t1`.`a` AS `a` from `t1` where `t1`.`a` > 3)select `t`.`a` AS `a` from `t` where `t`.`a` = 1 union select `s`.`a` AS `a` from `s` where `s`.`a` = 7 order by `a` desc latin1 latin1_swedish_ci +select * from v1; +a +7 +1 +drop view v1; +create view v1 as +with t as (select * from t1 where a < 3), +s as (select * from t where a > 3) +select a from t where a=1 union select a from s where a=7 order by a desc; +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`.`a` < 3), s as (select `t`.`a` AS `a` from (select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 3) `t` where `t`.`a` > 3)select `t`.`a` AS `a` from `t` where `t`.`a` = 1 union select `s`.`a` AS `a` from `s` where `s`.`a` = 7 order by `a` desc latin1 latin1_swedish_ci +select * from v1; +a +1 +drop view v1; +drop table t1,t2; # End of 10.4 tests diff --git a/mysql-test/main/brackets.test b/mysql-test/main/brackets.test index 9ca86b8..b7bb616 100644 --- a/mysql-test/main/brackets.test +++ b/mysql-test/main/brackets.test @@ -176,5 +176,2323 @@ select * from t1; drop table t1; +--echo # +--echo # MDEV-19956: query expressions in different contexts +--echo # + +create table t1 (a int); +insert into t1 values (3), (7), (1), (2), (4); +create table t2 (a int, b int); +insert into t2 values (3,30), (7,70), (1,10), (2,20), (4,40); + + +--echo # 1. select + +--echo # 1.1. simple select + +select * from t1; +(select * from t1); +((select * from t1)); +--echo # 1.2. select with tail +select * from t1 order by a; +select a from t1 order by a; +select a from t1 order by 1; +select * from t1 order by t1.a; +(select * from t1 order by t1.a); +((select * from t1 order by t1.a)); +(select * from t1 order by t1.a limit 2); +(select a from t1 where a=1) order by 1 desc; + +--echo # 1.2. select with several tails + +(select * from t2 order by a limit 2) order by b desc; +(select * from t2 order by t2.a limit 2) order by b desc; +((select * from t2 order by t2.a limit 2) order by b desc); +(((select * from t2 order by t2.a) limit 2) order by b desc); + + +--echo # 2. union + +--echo # 2.1 simple union + +select a from t1 union select a from t1; +select a from t1 union all select a from t1; +select a from t1 union select b from t2; +(select a from t1) union (select a from t1); +(select a from t1) union (select b from t2); +select a from t1 where a=1 union select a from t1 where a=3; +(select a from t1 where a=1) union select a from t1 where a=3; +((select a from t1 where a=1) union select a from t1 where a=3); +((select a from t1 where a<=3) union (select a from t1 where a=3)); +select a from t1 where a=1 union (select a from t1 where a=3); +(select a from t1 where a=1 union (select a from t1 where a=3)); +((select a from t1 where a=1 union (select a from t1 where a=3))); + +select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=7; + +( select a from t1 where a=1 + union + select a from t1 where a=3 + union + select a from t1 where a=7 ); + +(select a from t1 where a=1 order by a) union select a from t1 where a=3; +(select a from t1 where a!=3 order by a desc) union select a from t1 where a=3; +((select a from t1 where a=1 order by a) union select a from t1 where a=3); +(select a from t1 where a!=3 order by a desc) union select a from t1 where a=3; + +( ( select a from t1 where a!=3 order by a desc limit 3) + union + select a from t1 where a=3 ); + +( select a from t1 where a <=3 except select a from t1 where a >=3 ) + union + select a from t1 where a=7; + +( ( select a from t1 where a <=3 + except + select a from t1 where a >=3 ) + union + select a from t1 where a=7 ); + +( select a from t1 where a <=3 + except + ( select a from t1 where a >=3 + union + select a from t1 where a=7 ) ); + +( ( select a from t1 where a <=3 ) + except + ( select a from t1 where a >=3 + union + select a from t1 where a=7 ) ); + +--echo # 2.2. union with tail + +select a from t1 where a=1 union select a from t1 where a=3 order by a desc; +(select a from t1 limit 2) union select a from t1 where a=3 order by a desc; + +select a from t1 where a=4 union (select a from t1 where a <=4 limit 2) +order by a desc; + +select a from t1 where a=4 +union +(select a from t1 where a <=4 order by a limit 2) +order by a desc; + +( select a from t1 where a=4 + union + ( select a from t1 where a <=4 order by a limit 2 ) ) +order by a desc; + +( select a from t1 where a <=3 except select a from t1 where a >=3 ) + union + select a from t1 where a=7 order by a desc; + +( select a from t1 where a!=3 order by a desc ) + union + select a from t1 where a=3 + order by a desc; + +(select a from t1 where a=1) +union +(select a from t1 where a=3) +order by a desc; + +( select a from t1 where a=1 + union + select a from t1 where a=3 ) +order by a desc; + +( ( select a from t1 where a=1 ) + union + ( select a from t1 where a=3 ) ) +order by a desc; + +( select a from t1 where a=1 + union + select a from t1 where a=3 ) +order by 1 desc; + +((select a from t1 where a=1 union select a from t1 where a=3)) order by 1 desc; +(((select a from t1 where a=1) union (select a from t1 where a=3))) +order by 1 desc; + +( (select a from t1 where a=1 ) + union + (select a from t1 where a=3) ) +order by 1 desc; + +--echo # 2.3. complex union + +select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 +union +select a from t1 where a=4; + +( select a from t1 where a=1 + union + select a from t1 where a=3 + union + select a from t1 where a=2 ) +union +select a from t1 where a=4; + +(select a from t1 where a=1 union select a from t1 where a=3) +union +(select a from t1 where a=2 union select a from t1 where a=4); +(select a from t1 where a=1 union (select a from t1 where a=3)) +union +((select a from t1 where a=2) union select a from t1 where a=4); + +( ( select a from t1 where a=1) + union + select a from t1 where a=3 ) +union +select a from t1 where a=2 +union +select a from t1 where a=4; +( ( ( select a from t1 where a=1) + union + select a from t1 where a=3 ) + union + select a from t1 where a=2 ) +union +select a from t1 where a=4; + +select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=2 +union +(select a from t1 where a=4); + +select a from t1 where a=1 +union +select a from t1 where a=3 +union +( select a from t1 where a=2 + union + ( select a from t1 where a=4 ) ); + +select a from t1 where a=1 +union +( select a from t1 where a=3 + union + ( select a from t1 where a=2 + union + ( select a from t1 where a=4 ) ) ); + +--echo # 2.4. complex union with tail + +( ( select a from t1 where a=1 union select a from t1 where a=3 ) + order by a desc ) +union +( ( select a from t1 where a=2 union select a from t1 where a=4 ) + order by a desc ); + +( ( select a from t1 where a=1 union select a from t1 where a=3 ) + order by a desc ) +union +( ( select a from t1 where a=2 union select a from t1 where a=4 ) + order by a desc ) +order by a; + +( select a from t1 where a=1 + union + select a from t1 where a=3 + union + select a from t1 where a=2 order by a desc limit 2 ) +union +select a from t1 where a=4 +order by a; + +( select a from t1 where a=1 + union + select a from t1 where a=3 order by a desc ) +union +select a from t1 where a=2 order by a desc limit 2; + +( ( select a from t1 where a >= 2 + union + select a from t1 where a=1 order by a desc limit 2 ) + union + select a from t1 where a=3 order by a limit 2 ) +union +select a from t1 where a=1; + + +--echo # 3. TVC + +--echo # 3.1. simple TVC + +values (3), (7), (1); +(values (3), (7), (1)); +((values (3), (7), (1))); + +--echo # 3.2. simple TVC with tail(s) + +values (3), (7), (1) order by 1; +(values (3), (7), (1)) order by 1; +((values (3), (7), (1))) order by 1; +(((values (3), (7), (1))) order by 1); +(values (3), (7), (1) limit 2) order by 1 desc; +((values (3), (7), (1)) order by 1 desc) limit 2; +(((values (3), (7), (1)) order by 1 desc) limit 2); + +--echo # 3.3. union of TVCs + +values (3), (7), (1) union values (3), (4), (2); +values (3), (7), (1) union all values (3), (4), (2); +values (3), (7), (1) union values (3), (4), (2); +values (3), (7), (1) except values (3), (4), (2); +(values (3), (7), (1)) union (values (3), (4), (2)); +(values (3), (7), (1)) union (values (3), (4), (2)) union values (5), (7); +(values (3), (7), (1)) union (values (3), (4), (2)) union (values (5), (7)); +(values (3), (7), (1) union values (3), (4), (2)) union values (5), (7); +values (3), (7), (1) union (values (3), (4), (2) union values (5), (7)); +(values (3), (7), (1) union ((values (3), (4), (2) union values (5), (7)))); + +--echo # 3.4. tailed union of TVCs + +values (3), (7), (1) union values (3), (4), (2) order by 1; +(values (3), (7), (1) union values (3), (4), (2)) order by 1; +(values (3), (7), (1) union values (3), (4), (2)) order by 1; +values (3), (7), (1) union (values (3), (4), (2)) order by 1; +(values (3), (7), (1) union values (3), (4), (2)) order by 1; +((values (3), (7), (1)) union values (3), (4), (2)) order by 1; + +--echo # 3.5. union of tailed TVCs + +(values (3), (7), (1) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2); + +((values (3), (7), (1) order by 1) limit 2) +union +((values (3), (4), (2) order by 1 desc) limit 2); + +(((values (3), (7), (1)) order by 1) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2); + +--echo # 3.6. tailed union of tailed TVCs + +(values (3), (7), (1) order by 1 limit 2) +union +values (3), (4), (2) +order by 1; + +((values (3), (7), (1)) order by 1 limit 2) +union +((values (3), (4), (2) order by 1 desc) limit 2) +order by 1; + +--echo # 3.7 [tailed] union of [tailed] select and [tailed] TVC + +(select a from t1 where a <=3 order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2); + +((select a from t1 where a <=3) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2); + +(((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2); + +( (((select a from t1 where a <=3) order by a) limit 2) + union + (((values (3), (4), (2)) order by 1 desc) limit 2) ); + +(select a from t1 where a <=3 order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) +order by a; + +((select a from t1 where a <=3) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2) +order by a; + +(((select a from t1 where a <=3) order by a) limit 2) +union +(((values (3), (4), (2)) order by 1 desc) limit 2) +order by a; + +(((values (3), (4), (2)) order by 1 desc) limit 2); +( (((select a from t1 where a <=3) order by a) limit 2) + union + (((values (3), (4), (2)) order by 1 desc) limit 2) ) +order by a; + +(values (3), (4), (2) order by 1 desc limit 2) +union +(select a from t1 where a <=3 order by 1 limit 2); + +(values (3), (4), (2) order by 1 desc limit 2) +union +((select a from t1 where a <=3) order by 1 limit 2); + +(((values (3), (4), (2)) order by 1 desc) limit 2) +union +(((select a from t1 where a <=3) order by 1) limit 2); + +(((values (3), (4), (2)) order by 1 desc) limit 2) +union +(((select a from t1 where a <=3) order by a) limit 2) +order by 1; + +( select a from t1 where a=1 + union + values (3), (4), (2) order by 1 desc ) +union +select a from t1 where a=2 order by a desc limit 3; + + +--echo 4. CTE + +--echo 4.1. simple select with simple CTE + +with t as (select * from t1 where a <=3) +select * from t; + +with t as (select * from t1 where a <=3) +(select * from t); + +with t as (select * from t1 where a <=3) +((select * from t)); + +with t as ((select * from t1 where a <=3)) +select * from t; +with t as (((select * from t1 where a <=3))) +select * from t; + +--echo 4.2. tailed select with simple CTE + +with t as (select * from t1 where a <=3) +select * from t order by a; + +with t as (select * from t1 where a <=3) +(select * from t) order by a; + +with t as (select * from t1 where a <=3) +(select * from t) order by a desc limit 2; + +--echo 4.3. [tailed] select with tailed CTE + +with t as (select * from t1 where a >=2 order by a limit 2) +select * from t; + +with t as (((select * from t1 where a >=2) order by a desc) limit 2) +select * from t; + +with t as (select * from t1 where a >=2 order by a desc limit 2) +select * from t order by a; + +--echo 4.4. [tailed] union with CTE + +with t as (select * from t1 where a <=3) +select a from t1 where a=1 union select a from t where a=3; + +with t as (select * from t1 where a <=3) +(select a from t) union (select b from t2); + +with t as (select * from t1 where a <=3) +(select a from t) union (select b as a from t2) order by a desc; + +--echo 4.5. [tailed] union with [tailed] union in CTE + +with t as (select * from t1 where a < 3 union select * from t1 where a > 3) +select a from t1 where a=1 union select a from t where a=7; + +with t as +( select * from t1 where a < 3 + union + select * from t1 where a > 3 + order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7; + +with t as +( select * from t1 where a < 3 + union + select * from t1 where a > 3 + order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; + +with t as +( (select * from t1 where a < 3) + union + (select * from t1 where a > 3) + order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; + +with t as +( (select * from t1 where a < 3) + union + (select * from t1 where a > 3) + order by a desc limit 3 ) +(select a from t1 where a=4 union select a from t where a=7 order by a desc); + +with t as +( (select * from t1 where a < 3) + union + (select * from t1 where a > 3) + order by a desc limit 3 ) +((select a from t1 where a=4 union select a from t where a=7) order by a desc); + +with t as +( select * from t1 where a < 3 + union + values (4), (7) + order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; + + +--echo 4.6. [tailed] union with [tailed] union of TVC in CTE + +with t(a) as +( values (2), (1) + union + (values (4), (7)) + order by 1 desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; + +with t(a) as +( (values (2), (1)) + union + (values (4), (7) order by 1 desc) + order by 1 desc limit 3 ) +select a from t1 where a=1 union select a from t where a=7 order by a desc; + +with t(a) as +( (values (2), (1)) + union + (values (4), (7) order by 1 desc) + order by 1 limit 3 ) +select a from t where a=1 union values (7) order by a desc; + +with t(a) as +( (values (2), (1)) + union + (values (4), (7) order by 1 desc ) ) +select a from t where a=1 union select 7 order by a desc; + +--echo 4.5. [tailed] union with two CTEs + +with t as (select * from t1 where a < 3), + s as (select * from t1 where a > 3) +select a from t where a=1 union select a from s where a=7 order by a desc; + +with t as (select * from t1 where a < 3), + s as (select * from t1 where a > 3) +(select a from t where a=1 union select a from s where a=7 order by a desc); + +with t as (select * from t1 where a < 3), + s as (select * from t1 where a > 3) +(select a from t where a=1 union select a from s where a=7) order by a desc; + +with t as (select * from t1 where a < 3), + s as (select * from t where a > 3) +select a from t where a=1 union select a from s where a=7 order by a desc; + + +--echo # 5. single-row subquery in expression + +--echo # 5.1. [tailed] simple select in expression + +select (a+1) + b as r from t2; +select ((a+1) + b) as r from t2; +select (b + (select 1)) as r from t2; +select (select a from t1 where a <=3 order by a desc limit 1) as r from t2; + +select +(select a from t1 where a <=3 order by a desc limit 1) as r from t2; + +select (select 100) as r from t2; +select ((select 100)) as r from t2; +select (select 100) + t2.b as r from t2; +select ((select 100) + t2.b) as r from t2; + +--echo # 5.2. [tailed] TVC in expression + +select (values (200)) as r from t2; +select ((values (200))) as r from t2; +select (values (200)) + t2.b as r from t2; +select ((values (200)) + t2.b) as r from t2; +select (values (200), (300) order by 1 desc limit 1) as r from t2; +select ((values (200), (300)) order by 1 desc limit 1) as r from t2; +select (select * from t1 limit 1) as r from t2; +select (select * from t1 order by a limit 1) as r from t2; +select ((select * from t1 order by a limit 1)) as r from t2; +((select ((select * from t1 order by a limit 1)) as r from t2)); +select (select * from t1 order by a limit 1) + t2.b as r from t2; + +--echo # 5.3. [tailed] union in expression + +select +( select a from t1 where a<3 union select a from t1 where a>4 + order by a desc limit 1 ) as r +from t1; + +select +( (select a from t1 where a<3) union (select a from t1 where a>4) + order by a desc limit 1 ) as r +from t1; + +select +( select a from t1 where a<3 union select a from t1 where a>4 + order by a desc limit 1 ) + t1.a as r +from t1; + +select +t1.a + +( select a from t1 where a<3 union select a from t1 where a>4 + order by a desc limit 1 ) as r +from t1; + +select +( (select a from t1 where a<3 union select a from t1 where a>4 + order by a desc limit 1 ) + t1.a) as r +from t1; + +select +( ( (select a from t1 where a<3) union (select a from t1 where a>4) + order by a desc limit 1 ) + t1.a ) as r +from t1; + +--echo # 5.4. [tailed] select with simple CTE in expression + +select +( with t as (select * from t1 where a <=3) + select a from t limit 1) as r +from t2; + +select +( with t as (select * from t1 where a <=3) + select a from t limit 1) + t2.b as r +from t2; + +select +t2.b +( with t as (select * from t1 where a <=3) + select a from t limit 1) as r +from t2; + +select +((( with t as (select * from t1 where a <=3) + select a from t limit 1) + t2.b)) as r +from t2; + +select +( with t as (select * from t1 where a <=3) + select a from t limit 1) + 100 as r +from t2; + +select +( with t as (select * from t1 where a <=3) + select a from t limit 1) + (select 100) as r +from t2; + +select +( with t as (select * from t1 where a <=3) + select a from t limit 1) + t2.b + (select 100) as r +from t2; + +select +( with t as (select * from t1 where a <=3) + select a from t limit 1 ) + (t2.b + (select 100)) as r +from t2; + +select +( with t as (select * from t1 where a <=3) + select a from t limit 1 ) + t2.b + (values (100)) as r +from t2; + +--echo # 5.5. [tailed] union with simple CTE in expression + +select +( with t as (select * from t1 where a <=3) + select a from t union select b from t2 order by a desc limit 1) as r +from t2; + +select +( with t as (select * from t1 where a <=3) + (select a from t) union (select b from t2) order by a desc limit 1) as r +from t2; + +select +( with t as (select * from t1 where a <=3) + (select a from t) union (select b from t2) order by a desc limit 1) as r +from t2; + +select +( ( with t as (select * from t1 where a <=3) + (select a from t) union (select b from t2) order by a desc limit 1) + + t2.a ) as r +from t2; + +--echo # 5.6. [tailed] union with CTE with union in expression + +select +( with t as + ( select * from t1 where a < 3 + union + select * from t1 where a > 3 + order by a desc limit 3 ) + select a from t1 where a=4 union select a from t where a=7 limit 1) as r +from t2; + +select +( with t as + ( select * from t1 where a < 3 + union + select * from t1 where a > 3 + order by a desc limit 3 ) + select a from t1 where a=4 union select a from t where a=7 limit 1) + +t2. b as r +from t2; + +--echo # 5.7. [tailed] union of TVCs with CTE with union in expression + +select +( with t(a) as + ( (values (2), (1)) + union + (values (4), (7) order by 1 limit 1) + order by 1 desc limit 3 ) select * from t limit 1 ) + t2.b as r +from t2; + +select +( with t(a) as + ( select 2 union select 1 + union + (values (4), (7) order by 1 limit 1) + order by 1 limit 3 ) select * from t limit 1 ) + t2.b as r +from t2; + + +--echo # 6. subquery + +--echo # 6.1. TVC in IN subquery + +select a from t1 where a in (1,8,7); +select a from t1 where a in (values (1), (8), (7)); + +--echo # 6.2. simple select in IN subquery + +select a from t1 where a in (select a from t2 where a <= 3); +select a from t1 where a in ((select a from t2 where a <= 3)); + +--echo # 6.3. union in IN subquery + +select a from t1 +where a in (select a from t1 where a<=2 union select a from t2 where b>40); + +select a from t1 +where a in (select a from t1 where a<=2 union (select a from t2 where b>40)); + +select a from t1 +where a in ((select a from t1 where a<=2) union select a from t2 where b>40); + +select a from t1 +where a in ((select a from t1 where a<=2) union (select a from t2 where b>40)); + +--echo # 6.4. select with CTE and union in IN subquery + +with t as (select a from t1 where a<=2) +select a from t1 +where a in ((select a from t) union (select a from t2 where b>40)); + +with t as ((select a from t1 where a<=2)) +select a from t1 +where a in ((select a from t) union (select a from t2 where b>40)); + +with t as ((select a from t1 where a<=2) order by a desc limit 1) +select a from t1 +where a in ((select a from t) union (select a from t2 where b>40)); + + +--echo # 6.5. NOT IN subquery + +select a from t1 where a not in (1,8,7); +select a from t1 where a not in (values (1), (8), (7)); +select a from t1 where a not in (select a from t2 where a <= 3); +select a from t1 where a not in ((select a from t2 where a <= 3)); + +select a from t1 +where a not in (select a from t1 where a<=2 + union + select a from t2 where b>40); + +select a from t1 +where a not in (select a from t1 where a<=2 + union + (select a from t2 where b>40)); + +select a from t1 +where a not in ((select a from t1 where a<=2) + union + select a from t2 where b>40); + +select a from t1 +where a not in ((select a from t1 where a<=2) + union + (select a from t2 where b>40)); + +with t as ((select a from t1 where a<=2) order by a desc limit 1) +select a from t1 +where a not in ((select a from t) union (select a from t2 where b>40)); + +--echo # 6.6. IN subquery in expression + +select 1 in (select a from t1) as r, b from t2 where b > 30; +select (1 in (select a from t1)) as r, b from t2 where b > 30; +select 1 in ((select a from t1)) as r, b from t2 where b > 30; +select ((1 in ((select a from t1)))) as r, b from t2 where b > 30; +select ((1 in ((select a from t1)))) as r, b from t2 where b > 30; +select b, if (a in (select a from t1 where a > 3),10,20) as r from t2; +select b, if (a in ((select a from t1 where a > 3)),10,20) as r from t2; + +--echo # 6.7. IN subquery in SF and SP + +create function f1(x int) returns int +return (x in ((select a from t1 where a <= 4))); +select b, f1(a) from t2 where b > 20; +drop function f1; +delimiter |; +create function f2(x int) returns int +if x in ((select a from t1 where a <= 4)) + then return 100; + else return 200; +end if | +delimiter ;| +select b, f2(a) from t2 where b > 20; +drop function f2; + +--echo # 6.8. EXISTS subquery + +select exists (select a from t1 where t1.a=t2.a) as r, b from t2 where b > 30; +select exists ((select a from t1 where t1.a=t2.a)) as r, b from t2 where b > 30; +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from t2 where exists ((select * from s where s.a=t2.a)); +with t as ((select a from t1 where a<=2) order by a desc limit 1) +select a from t2 +where not exists ((select a from t where t.a=t2.a) + except + (select a from t where a>40)); + +--echo # 6.9. EXISTS subquery with SF and SP + +create function f1(x int) returns int +return exists (((select * from t1 where x=a and a <= 4))); +select b, f1(a) from t2 where b > 20; +drop function f1; + +delimiter |; +create function f2(x int) returns int +if not exists (((select * from t1 where x=a and a <= 4))) + then return 100; + else return 200; +end if | +delimiter ;| +select b, f2(a) from t2 where b > 20; +drop function f2; + +--echo # 6.10. subquery with ANY + +select a from t1 where a = any(select a from t2 where a <= 3); +select a from t1 where a = any((select a from t2 where a <= 3)); + +select a from t1 +where a = any (select a from t1 where a<=2 + union + select a from t2 where b>40); + +select a from t1 +where a = any(select a from t1 where a<=2 + union + (select a from t2 where b>40)); + +select a from t1 +where a = any((select a from t1 where a<=2) + union + select a from t2 where b>40); + +select a from t1 +where a = any((select a from t1 where a<=2) + union + (select a from t2 where b>40)); + + +--echo # 7. create table as + +--echo # 7.1. create table as simple select + +create table t as select * from t1 where a <=3; +select * from t; +drop table t; + +create table t select * from t1 where a <=3; +select * from t; +drop table t; + +create table t as (select * from t1 where a <=3); +select * from t; +drop table t; + +create table t (select * from t1 where a <=3); +select * from t; +drop table t; + +create table t as ((select * from t1 where a <=3)); +select * from t; +drop table t; + +create table t ((select * from t1 where a <=3)); +select * from t; +drop table t; + +create table t(a decimal(10,2)) as select * from t1 where a <=3; +select * from t; +drop table t; + +create table t(a decimal(10,2)) select * from t1 where a <=3; +select * from t; +drop table t; + +create table t(a decimal(10,2)) as (select * from t1 where a <=3); +select * from t; +drop table t; + +create table t(a decimal(10,2)) (select * from t1 where a <=3); +select * from t; +drop table t; + +create table t(a decimal(10,2)) as ((select * from t1 where a <=3)); +select * from t; +drop table t; + +create table t(a decimal(10,2)) ((select * from t1 where a <=3)); +select * from t; +drop table t; + +create table t(a decimal(10,2), b int) as + ((select a, a as b from t1 where a <=3)); +select * from t; +drop table t; + +create table t(a decimal(10,2), b int) + ((select a, a as b from t1 where a <=3)); +select * from t; +drop table t; + +--echo # 7.2. create table as tailed select + +create table t as select * from t1 where a <=3 order by 1; +select * from t; +drop table t; + +create table t select * from t1 where a <=3 order by 1; +select * from t; +drop table t; + +create table t as select * from t1 where a <=3 order by 1 desc limit 2; +select * from t; +drop table t; + +create table t select * from t1 where a <=3 order by 1 desc limit 2; +select * from t; +drop table t; + +create table t as ((select * from t1 where a <=3) order by 1 desc) limit 2; +select * from t; +drop table t; + +create table t ((select * from t1 where a <=3) order by 1 desc) limit 2; +select * from t; +drop table t; + +--echo # 7.3. create table as select wihout from clause + +create table t as select 10; +select * from t; +drop table t; + +create table t select 10; +select * from t; +drop table t; + +--echo # 7.4. create table as union of selects wihout from clause + +create table t as select 10 union select 70; +select * from t; +drop table t; + +create table t select 10 union select 70; +select * from t; +drop table t; + +--echo # 7.5. create table as TVC + +create table t as values (7), (3), (8); +select * from t; +drop table t; + +create table t values (7), (3), (8); +select * from t; +drop table t; + +create table t as (values (7), (3), (8)); +select * from t; +drop table t; + +create table t (values (7), (3), (8)); +select * from t; +drop table t; + +create table t as ((values (7), (3), (8))); +select * from t; +drop table t; + +create table t ((values (7), (3), (8))); +select * from t; +drop table t; + +--echo # 7.6. create table as select with CTE + +create table t as +with s(a) as (select * from t1 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +drop table t; + +create table t +with s(a) as (select * from t1 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +drop table t; + +create table t as +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s; +select * from t; +drop table t; + +create table t +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s; +select * from t; +drop table t; + +create table t as +with s(a) as (select * from t1 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +drop table t; + +--echo # 7.7. create table as union with CTE + +create table t as +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +drop table t; + +create table t +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +drop table t; + +create table t +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +drop table t; + +create table t as +with s as +( ( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +drop table t; + +create table t +with s as +( ( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +drop table t; + +create table t as +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s where a>=7 union select a from s where a<4; +select * from t; +drop table t; + +create table t +with s as +( (select * from t1 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s where a>=7 union select a from s where a<4; +select * from t; +drop table t; + +create table t as +with s as +( select * from t1 where a <=4 or a=7 ) +select * from s where a>=7 union select a from s where a<3; +select * from t; +drop table t; + +create table t +with s as +(select * from t1 where a <=4 or a=7) +select * from s where a>=7 union select a from s where a<3; +select * from t; +drop table t; + +create table t (a int) +with s as +( select * from t1 where a <=4 or a=7 ) +select * from s where a>=7 union select a from s where a<3; +select * from t; +drop table t; + +create table t (a int) +with s as +(select * from t1 where a <=4 or a=7) +select * from s where a>=7 union select a from s where a<3; +select * from t; +drop table t; + +create table t +with s as +( select * from t1 where a <=4 or a=7 ) +select * from s where a>=7 union select a from s where a<3 +order by a desc limit 2; +select * from t; +drop table t; + +create table t +( with s as + ( select * from t1 where a <=4 or a=7 ) + select * from s where a>=7 union select a from s where a<3 + order by a desc limit 2 ); +select * from t; +drop table t; + + +--echo # 8. insert + +create table t (c int, d int); + +--echo # 8.1. insert simple select + +insert into t select * from t2 where a <=3; +select * from t; +delete from t; + +insert into t(c) select t2.a from t2 where a <=3; +select * from t; +delete from t; + +insert into t (select * from t2 where a <=3); +select * from t; +delete from t; + +insert into t(c) (select t2.a from t2 where a <=3); +select * from t; +delete from t; + +insert into t ((select * from t2 where a <=3)); +select * from t; +delete from t; + +insert into t(c) ((select t2.a from t2 where a <=3)); +select * from t; +delete from t; + +drop table t; +create table t(c decimal(10,2)); + +insert into t select * from t1 where a <=3; +select * from t; +delete from t; + +insert into t(c) select * from t1 where a <=3; +select * from t; +delete from t; + +insert into t (select * from t1 where a <=3); +select * from t; +delete from t; + +insert into t(c) (select * from t1 where a <=3); +select * from t; +delete from t; + +insert into t ((select * from t1 where a <=3)); +select * from t; +delete from t; + +insert into t(c) ((select * from t1 where a <=3)); +select * from t; +delete from t; + +drop table t; +create table t(a decimal(10,2), b int); + +insert into t ((select * from t2 where a <=3)); +select * from t; +delete from t; + +insert into t(a) ((select a from t2 where a <=3)); +select * from t; +delete from t; + +drop table t; +create table t(c int, d int); + +--echo # 8.2. insert tailed select + +insert into t select * from t2 where a <=3 order by 1; +select * from t; +delete from t; + +insert into t(c) select a from t2 where a <=3 order by 1; +select * from t; +delete from t; + +insert into t select * from t2 where a <=3 order by 1 desc limit 2; +select * from t; +delete from t; + +insert into t(c) select a from t2 where a <=3 order by 1 desc limit 2; +select * from t; +delete from t; + +insert into t ((select * from t2 where a <=3) order by 1 desc) limit 2; +select * from t; +delete from t; + +insert into t(c) ((select a from t2 where a <=3) order by 1 desc) limit 2; +select * from t; +delete from t; + +--echo # 8.3. insert select without from clause + +insert into t select 10, 20; +select * from t; +delete from t; + +insert into t(c) select 10; +select * from t; +delete from t; + +--echo # 8.4. insert union of selects without from clause + +insert into t select 10,20 union select 70,80; +select * from t; +delete from t; + +insert into t(c) select 10 union select 70; +select * from t; +delete from t; + +--echo # 8.5. insert TVC + +insert into t values (7,70), (3,30), (8,80); +select * from t; +delete from t; + +insert into t(c) values (7), (3), (8); +select * from t; +delete from t; + +insert into t (values (7,70), (3,30), (8,80)); +select * from t; +delete from t; + +insert into t(c) (values (7), (3), (8)); +select * from t; +delete from t; + +insert into t ((values (7,70), (3,30), (8,80))); +select * from t; +delete from t; + +insert into t(c) ((values (7), (3), (8))); +select * from t; +delete from t; + +--echo # 8.7. insert simple select with CTE + +insert into t +with s(a,b) as (select * from t2 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +delete from t; + +insert into t(c) +with s(a) as (select a from t2 where a <=3 order by 1 desc limit 2) +select * from s; +select * from t; +delete from t; + +insert into t +with s as +( (select * from t2 where a <=4 order by 1 desc limit 2) + union + values (3,30), (8,80), (7,70) ) +select * from s; +select * from t; +delete from t; + +insert into t(c) +with s as +( (select a from t2 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s; +select * from t; +delete from t; + +--echo # 8.8. insert into union with CTE +insert into t(c) +with s as +( (select a from t2 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s where a>=7 union select a from t2 where b<40; +select * from t; +delete from t; + +insert into t +with s as +( (select * from t2 where a <=4 order by 1 desc limit 2) + union + values (3,30), (8,80), (7,70) ) +select * from s where a>=7 union select * from s where a<4; +select * from t; +delete from t; + +insert into t(c) +with s as +( (select a from t2 where a <=4 order by 1 desc limit 2) + union + values (3), (8), (7) ) +select * from s where a>=7 union select * from s where a<4; +select * from t; +delete from t; + +insert into t +with s as +( select * from t2 where a <=4 or a=7 ) +select * from s where a>=7 union select * from s where a<3; +select * from t; +delete from t; + +insert into t(c) +with s as +( select a from t2 where a <=4 or a=7 ) +select * from s where a>=7 union select * from s where a<3; +select * from t; +delete from t; + +drop table t; + + +--echo # 9. derived table + +--echo # 9.1. derived table as [tailed] simple select + +select * from (select * from t1) as dt; +select * from ((select * from t1)) as dt; +select * from (((select * from t1))) as dt; +select * from (select * from t1 order by a) as dt; +select * from (select a from t1 order by a) as dt; +select * from (select a from t1 order by 1) as dt; +select * from (select a from t1 order by t1.a) as dt; +select * from ((select * from t1 order by t1.a limit 2)) as dt; +select * from ((select * from t2 order by a limit 2) order by b desc) dt; +select * from ((select a from t1 where a=1) order by 1 desc) dt; + +--echo # 9.2. derived table as select with two tails + +select * from +((select * from t2 order by t2.a limit 2) order by b desc) dt; + +select * from +((select * from t2 order by t2.a limit 2) order by b desc) as dt; + +select * from +(((select * from t2 order by t2.a limit 2) order by b desc )) as dt; + +select * from +(((select * from t2 order by t2.a) limit 2) order by b desc) dt; + +select * from +((select * from t2 order by a limit 2) order by b desc) dt; + +select * from +((select a from t1 where a=1) order by 1 desc) as dt; + +select * from +((select * from t2 order by t2.a limit 2) order by b desc) as dt; + + +--echo # 9.3. derived table as union + +select * from (select a from t1 union select a from t1) as dt; +select * from (select a from t1 union all select a from t1) as dt; +select * from (select a from t1 union select b from t2) as dt; + +select * from +((select a from t1) union (select a from t1)) as dt; + +select * from +((select a from t1) union (select b from t2)) as dt; + +select * from +(select a from t1 where a=1 union select a from t1 where a=3) dt; + +select * from +((select a from t1 where a=1) union select a from t1 where a=3) dt; + +select * from +(((select a from t1 where a=1) union select a from t1 where a=3)) dt; + +select * from +(((select a from t1 where a<=3) union (select a from t1 where a=3))) as dt; + +select * from +(select a from t1 where a=1 union (select a from t1 where a=3)) as dt; + +select * from +((select a from t1 where a=1 union (select a from t1 where a=3))) as dt; + +select * from +(((select a from t1 where a=1 union (select a from t1 where a=3)))) as dt; + +select * from +( select a from t1 where a=1 + union + select a from t1 where a=3 + union + select a from t1 where a=7 ) as dt; + +select * from +( (select a from t1 where a=1 order by a) + union + select a from t1 where a=3 ) as dt; + +select * from +( (select a from t1 where a!=3 order by a desc) + union + select a from t1 where a=3 ) as dt; + +select * from +( ( select a from t1 where a <=3 except select a from t1 where a >=3 ) + union + select a from t1 where a=7 ) as dt; + +select * from +( ( ( select a from t1 where a <=3 + except + select a from t1 where a >=3 ) + union + select a from t1 where a=7 ) ) as dt; + +select * from +( select a from t1 where a=1 + union + select a from t1 where a=3 + order by a desc) as dt; + +select *from +( (select a from t1 limit 2) + union + select a from t1 where a=3 + order by a desc) as dt; + +select * from +( select a from t1 where a=4 + union + (select a from t1 where a <=4 limit 2) + order by a desc ) as dt; + +select * from +( ( select a from t1 where a=4 + union + ( select a from t1 where a <=4 order by a ) ) + order by a desc limit 2 ) as dt; + +select * from +( ( select a from t1 where a <=3 except select a from t1 where a >=3 ) + union + select a from t1 where a=7 order by a desc ) as dt; + +select * from +( ( select a from t1 where a!=3 order by a desc ) + union + select a from t1 where a=3 + order by a desc ) as dt; + +select * from +( (select a from t1 where a=1) + union + (select a from t1 where a=3) + order by a desc ) as dt; + +select * from +( ( select a from t1 where a=1 + union + select a from t1 where a=3 ) + order by a desc ) as dt; + +select * from +( ( ( select a from t1 where a=1 ) + union + ( select a from t1 where a=3 ) ) + order by a desc ) as dt; + +select * from +( ( select a from t1 where a=1 + union + select a from t1 where a=3 ) + order by 1 desc ) as dt; + +select * from +( ( (select a from t1 where a=1 + union + select a from t1 where a=3) ) order by 1 desc ) as dt; + +select * from +((((select a from t1 where a=1) union (select a from t1 where a=3))) + order by 1 desc ) as dt; + +select * from +( ( (select a from t1 where a=1 ) + union + (select a from t1 where a=3) ) + order by 1 desc ) as dt; + +select * from +( select a from t1 where a=1 + union + select a from t1 where a=3 + union + select a from t1 where a=2 + union + select a from t1 where a=4 ) as dt; + +select * from +( ( select a from t1 where a=1 + union + select a from t1 where a=3 + union + select a from t1 where a=2 ) + union + select a from t1 where a=4 ) as dt; + +select * from +( (select a from t1 where a=1 union select a from t1 where a=3) + union + (select a from t1 where a=2 union select a from t1 where a=4) ) as dt; + +select * from +( (select a from t1 where a=1 union (select a from t1 where a=3)) + union + ((select a from t1 where a=2) union select a from t1 where a=4) ) as dt; + +select * from +( ( ( select a from t1 where a=1) + union + select a from t1 where a=3 ) + union + select a from t1 where a=2 + union + select a from t1 where a=4 ) as dt; + +select * from +( ( ( ( select a from t1 where a=1) + union + select a from t1 where a=3 ) + union + select a from t1 where a=2 ) + union + select a from t1 where a=4 ) as dt; + +select * from +( select a from t1 where a=1 + union + select a from t1 where a=3 + union + select a from t1 where a=2 + union + (select a from t1 where a=4) ) as dt; + +select * from +( select a from t1 where a=1 + union + select a from t1 where a=3 + union + ( select a from t1 where a=2 + union + ( select a from t1 where a=4 ) ) ) as dt; + +select * from +( select a from t1 where a=1 + union + ( select a from t1 where a=3 + union + ( select a from t1 where a=2 + union + ( select a from t1 where a=4 ) ) ) ) as dt; + +select * from +( ( ( select a from t1 where a=1 union select a from t1 where a=3 ) + order by a desc limit 2 ) + union + ( ( select a from t1 where a=2 union select a from t1 where a=4 ) + order by a desc limit 1 ) ) as dt; + +select * from +( ( ( select a from t1 where a=1 union select a from t1 where a=3 ) + order by a desc limit 2 ) + union + ( ( select a from t1 where a=2 union select a from t1 where a=4 ) + order by a desc limit 2 ) + order by a) as dt; + +select * from +( ( select a from t1 where a=1 + union + select a from t1 where a=3 + union + select a from t1 where a=2 order by a desc limit 2 ) + union + select a from t1 where a=4 + order by a limit 3 ) as dt; + +select * from +( ( select a from t1 where a=1 + union + select a from t1 where a=3 order by a desc limit 2) + union + select a from t1 where a=2 order by a desc limit 2 ) as dt; + +select * from +( ( ( select a from t1 where a >= 2 + union + select a from t1 where a=1 order by a desc limit 2 ) + union + select a from t1 where a=3 order by a limit 2 ) + union + select a from t1 where a=1 ) as dt; + +--echo # 9.3. derived table as [tailed] TVC + +select * from +( values (3), (7), (1) ) as dt; + +select * from +( (values (3), (7), (1)) ) as dt; + +select * from +(((values (3), (7), (1)))) as dt; + +select * from +( values (3), (7), (1) order by 1 limit 2 ) as dt; + +select * from +( (values (3), (7), (1)) order by 1 limit 2 ) as dt; + +select * from +( ((values (3), (7), (1))) order by 1 limit 2 ) as dt; + +select * from +( (((values (3), (7), (1))) order by 1 limit 2) ) as dt; + +select * from +( ( (values (3), (7), (1) limit 2) order by 1 desc) ) as dt; + +select * from +( ((values (3), (7), (1)) order by 1 desc) limit 2 ) as dt; + +select * from +( (((values (3), (7), (1)) order by 1 desc) limit 2) ) as dt; + +--echo # 9.3. derived table as union of TVCs + +select * from +( values (3), (7), (1) union values (3), (4), (2) ) dt; + +select * from +( values (3), (7), (1) union all values (3), (4), (2) ) as dt; + +select * from +( values (3), (7), (1) union values (3), (4), (2) ) as dt; + +select * from +( values (3), (7), (1) except values (3), (4), (2) ) as dt; + +select * from +( (values (3), (7), (1)) union (values (3), (4), (2)) ) as dt; + +select * from +( (values (3), (7), (1)) + union + (values (3), (4), (2)) + union values (5), (7) ) dt; + +select * from +( (values (3), (7), (1)) + union + (values (3), (4), (2)) + union + (values (5), (7)) ) as dt; + +select * from +( (values (3), (7), (1) + union + values (3), (4), (2)) + union + values (5), (7) ) as dt; + +select * from +( values (3), (7), (1) + union (values (3), (4), (2) + union + values (5), (7)) ) as dt; + +select * from +( (values (3), (7), (1) + union + ((values (3), (4), (2) + union values (5), (7)))) ) dt; + +select * from +( values (3), (7), (1) + union + values (3), (4), (2) + order by 1 ) as dt; + +select * from +( (values (3), (7), (1) union values (3), (4), (2)) order by 1 ) as dt; + +select * from +( (values (3), (7), (1) union values (3), (4), (2)) order by 1 ) as dt; + +select * from +( values (3), (7), (1) union (values (3), (4), (2)) order by 1 ) as dt; + +select * from +( (values (3), (7), (1) union values (3), (4), (2)) order by 1 ) as dt; + +select * from +( ((values (3), (7), (1)) union values (3), (4), (2)) order by 1 ) as dt; + +select * from +( (values (3), (7), (1) order by 1 limit 2) + union + (values (3), (4), (2) order by 1 desc limit 2) ) as dt; + +select * from +( ((values (3), (7), (1) order by 1) limit 2) + union + ((values (3), (4), (2) order by 1 desc) limit 2) ) as dt; + +select * from +( (((values (3), (7), (1)) order by 1) limit 2) + union + (((values (3), (4), (2)) order by 1 desc) limit 2) ) as dt; + +select * from +( (values (3), (7), (1) order by 1 limit 2) + union + values (3), (4), (2) + order by 1 limit 3 ) as dt; + +select * from +( ((values (3), (7), (1)) order by 1 limit 2) + union + ((values (3), (4), (2) order by 1 desc) limit 2) + order by 1 limit 3 ) as dt; + +select * from +( (select a from t1 where a <=3 order by 1 limit 2) + union + (values (3), (4), (2) order by 1 desc limit 2) ) dt; + +select * from +( ((select a from t1 where a <=3) order by 1 limit 2) + union + (values (3), (4), (2) order by 1 desc limit 2) ) as dt; + +select * from +( (((select a from t1 where a <=3) order by a) limit 2) + union + (((values (3), (4), (2)) order by 1 desc) limit 2) ) as dt; + +select * from + ( ( (((select a from t1 where a <=3) order by a) limit 2) + union + (((values (3), (4), (2)) order by 1 desc) limit 2) ) ) dt; + +select * from +( (select a from t1 where a <=3 order by 1 limit 2) + union + (values (3), (4), (2) order by 1 desc limit 2) + order by a ) as dt; + +select * from +( ((select a from t1 where a <=3) order by 1 limit 2) + union + (values (3), (4), (2) order by 1 desc limit 2) + order by a ) as dt; + +select * from +( (((select a from t1 where a <=3) order by a) limit 2) + union + (((values (3), (4), (2)) order by 1 desc) limit 2) + order by a ) as dt; + +select * from +( (((values (3), (4), (2)) order by 1 desc) limit 2) ) as dt; + +select * from +( ( (((select a from t1 where a <=3) order by a) limit 2) + union + (((values (3), (4), (2)) order by 1 desc) limit 2) ) + order by a ) as dt; + +select * from +( (values (3), (4), (2) order by 1 desc limit 2) + union + (select a from t1 where a <=3 order by 1 limit 2) ) as dt; + +select * from +( (values (3), (4), (2) order by 1 desc limit 2) + union + ((select a from t1 where a <=3) order by 1 limit 2) ) as dt; + +select * from +( (((values (3), (4), (2)) order by 1 desc) limit 2) + union + (((select a from t1 where a <=3) order by 1) limit 2) ) as dt; + +select * from +( (((values (3), (4), (2)) order by 1 desc) limit 2) + union + (((select a from t1 where a <=3) order by a) limit 2) + order by 1 ) as dt; + +select * from +( ( select a from t1 where a=1 + union + values (3), (4), (2) order by 1 desc ) + union + select a from t1 where a=2 order by a desc limit 3 ) as dt; + + +--echo # 9.4. derived table as [tailed] simple select with CTE + + +select * from +( with t as (select * from t1 where a <=3) + select * from t ) as dt; + +select * from +( with t as (select * from t1 where a <=3) + (select * from t) ) as dt; + +select * from +( with t as (select * from t1 where a <=3) + ((select * from t)) ) as dt; + +select * from +( with t as ((select * from t1 where a <=3)) + select * from t ) as dt; + +select * from +( with t as (((select * from t1 where a <=3))) + select * from t ) as dt; + +select * from +( with t as (select * from t1 where a <=3) + select * from t order by a ) as dt; + +select * from +( with t as (select * from t1 where a <=3) + (select * from t) order by a ) as dt; + +select * from +( with t as (select * from t1 where a <=3) + (select * from t) order by a desc limit 2 ) as dt; + +select * from +( with t as (select * from t1 where a >=2 order by a limit 2) + select * from t ) as dt; + +select * from +( with t as (((select * from t1 where a >=2) order by a desc) limit 2) + select * from t ) as dt; + +select * from +( with t as (select * from t1 where a >=2 order by a desc limit 2) + select * from t order by a ) as dt; + +--echo # 9.5. derived table as tailed union with CTE + +select * from +( with t as (select * from t1 where a <=3) + select a from t1 where a=1 union select a from t where a=3 ) as dt; + +select * from +( with t as (select * from t1 where a <=3) + (select a from t) union (select b from t2) ) as dt; + +select * from +( with t as (select * from t1 where a <=3) + (select a from t) union (select b as a from t2) order by a desc ) as dt; + +select * from +( with t as (select * from t1 where a < 3 union select * from t1 where a > 3) + select a from t1 where a=1 union select a from t where a=7 ) as dt; + +select * from +( with t as + ( select * from t1 where a < 3 + union + select * from t1 where a > 3 + order by a desc limit 3 ) + select a from t1 where a=4 union select a from t where a=7 ) as dt; + +select * from +( with t as + ( select * from t1 where a < 3 + union + select * from t1 where a > 3 + order by a desc limit 3 ) + select a from t1 where a=4 + union + select a from t where a=7 + order by a desc ) as dt; + +select * from +( with t as + ( (select * from t1 where a < 3) + union + (select * from t1 where a > 3) + order by a desc limit 3 ) + select a from t1 where a=4 + union select a from t where a=7 + order by a desc ) dt; + +select * from +( with t as + ( (select * from t1 where a < 3) + union + (select * from t1 where a > 3) + order by a desc limit 3 ) + (select a from t1 where a=4 + union + select a from t where a=7 + order by a desc) ) as dt; + +select * from +( with t as + ( (select * from t1 where a < 3) + union + (select * from t1 where a > 3) + order by a desc limit 3 ) + ((select a from t1 where a=4 + union + select a from t where a=7) order by a desc) ) as dt; + +select * from +( with t as + ( select * from t1 where a < 3 + union + values (4), (7) + order by a desc limit 3 ) + select a from t1 where a=4 + union + select a from t where a=7 + order by a desc ) dt; + +select * from +( with t(a) as + ( values (2), (1) + union + (values (4), (7)) + order by 1 desc limit 3 ) + select a from t1 where a=4 + union select a from t where a=7 + order by a desc ) as dt; + +select * from +( with t(a) as + ( (values (2), (1)) + union + (values (4), (7) order by 1 desc) + order by 1 desc limit 3 ) + select a from t1 where a=1 + union + select a from t where a=7 order by a desc ) as dt; + +select * from +( with t(a) as + ( (values (2), (1)) + union + (values (4), (7) order by 1 desc) + order by 1 limit 3 ) + select a from t where a=1 union values (7) order by a desc ) as dt; + +select * from +( with t(a) as + ( (values (2), (1)) + union + (values (4), (7) order by 1 desc ) ) + select a from t where a=1 union select 7 order by a desc ) as dt; + +select * from +( with t as (select * from t1 where a < 3), + s as (select * from t1 where a > 3) + select a from t where a=1 + union select a from s where a=7 + order by a desc ) dt; + +select * from +( with t as (select * from t1 where a < 3), + s as (select * from t1 where a > 3) + (select a from t where a=1 + union + select a from s where a=7 order by a desc) ) dt; + +select * from +( with t as (select * from t1 where a < 3), + s as (select * from t1 where a > 3) + (select a from t where a=1 + union + select a from s where a=7) + order by a desc ) dt; + + +--echo 10. view + +--echo 10.1. view as simple select + +create view v1 as +select * from t1; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +select 2*a as c from t1; +show create view v1; +select * from v1; +drop view v1; + +create view v1(c) as +select 2*a from t1; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +((select * from t1)); +show create view v1; +select * from v1; +drop view v1; + +--echo 10.2. view as tailed simple select + +create view v1 as +select * from t1 order by a; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +(select * from t2 order by a limit 2) order by b desc; +show create view v1; +select * from v1; +drop view v1; + +--echo 10.3. view as union + +create view v1 as +select a from t1 union select b from t2; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +(select a from t1) union (select b from t2); +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +(select a from t1 where a=1) union select a from t1 where a=3; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +((select a from t1 where a<=3) union (select a from t1 where a=3)); +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +select a from t1 where a=1 +union +select a from t1 where a=3 +union +select a from t1 where a=7; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +( ( select a from t1 where a!=3 order by a desc limit 3) + union + select a from t1 where a=3 ); +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +( select a from t1 where a <=3 except select a from t1 where a >=3 ) + union + select a from t1 where a=7; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +(select a from t1 limit 2) union select a from t1 where a=3 order by a desc; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +select a from t1 where a=1 +union +( select a from t1 where a=3 + union + ( select a from t1 where a=2 + union + ( select a from t1 where a=4 ) ) ); +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +( ( select a from t1 where a >= 2 + union + select a from t1 where a=1 order by a desc limit 2 ) + union + select a from t1 where a=3 order by a limit 2 ) +union +select a from t1 where a=1; +show create view v1; +select * from v1; +drop view v1; + +--echo 10.4. view as [tailed] TVC + +create view v1 as +values (3), (7), (1); +show create view v1; +select * from v1; +drop view v1; +create view v1 as +(((values (3), (7), (1))) order by 1); +show create view v1; +select * from v1; +drop view v1; + +--echo 10.5. view as [tailed] union of TVCs + +create view v1 as +values (3), (7), (1) union values (3), (4), (2); +show create view v1; +select * from v1; +drop view v1; +create view v1 as +(values (3), (7), (1) union values (3), (4), (2)) order by 1; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +(values (3), (7), (1) order by 1 limit 2) +union +(values (3), (4), (2) order by 1 desc limit 2); +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +(values (3), (7), (1) order by 1 limit 2) +union +values (3), (4), (2) +order by 1; +show create view v1; +select * from v1; +drop view v1; + +--echo 10.6. view as [tailed] union of [tailed] select and tailed TVC + +create view v1 as +( (((select a from t1 where a <=3) order by a) limit 2) + union + (((values (3), (4), (2)) order by 1 desc) limit 2) ) +order by a; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +( select a from t1 where a=1 + union + values (3), (4), (2) order by 1 desc ) +union +select a from t1 where a=2 order by a desc limit 3; +show create view v1; +select * from v1; +drop view v1; + +--echo 10.7. view as select with CTE + +create view v1 as +with t as (select * from t1 where a <=3) +select * from t; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +with t as +( select * from t1 where a < 3 + union + select * from t1 where a > 3 + order by a desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7; +show create view v1; +select * from v1; +drop view v1; + +--echo 10.8. view as union with CTE + +create view v1 as +with t as +( (select * from t1 where a < 3) + union + (select * from t1 where a > 3) + order by a desc limit 3 ) +(select a from t1 where a=4 union select a from t where a=7 order by a desc); +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +with t as +( (select * from t1 where a < 3) + union + (select * from t1 where a > 3) + order by a desc limit 3 ) +(select a from t where a=4 union select a from t where a=7 order by a desc); +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +with t(a) as (values (2), (1)) select a from t; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +with t(a) as +( values (2), (1) + union + (values (4), (7)) + order by 1 desc limit 3 ) +select a from t1 where a=4 union select a from t where a=7 order by a desc; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +with t(a) as +( (values (2), (1)) + union + (values (4), (7) order by 1 desc) + order by 1 desc limit 3 ) +select a from t1 where a=1 union select a from t where a=7 order by a desc; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +with t as (select * from t1 where a < 3), + s as (select * from t1 where a > 3) +select a from t where a=1 union select a from s where a=7 order by a desc; +show create view v1; +select * from v1; +drop view v1; + +create view v1 as +with t as (select * from t1 where a < 3), + s as (select * from t where a > 3) +select a from t where a=1 union select a from s where a=7 order by a desc; +show create view v1; +select * from v1; +drop view v1; + +drop table t1,t2; + --echo # End of 10.4 tests diff --git a/mysql-test/main/cte_nonrecursive.result b/mysql-test/main/cte_nonrecursive.result index 2556fd4..f0f69a7 100644 --- a/mysql-test/main/cte_nonrecursive.result +++ b/mysql-test/main/cte_nonrecursive.result @@ -606,7 +606,7 @@ 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 as (select `t1`.`a` AS `c` from `t1` where `t1`.`b` >= 'c')select `r1`.`c` AS `c` from `t` `r1` where `r1`.`c` = 4 latin1 latin1_swedish_ci +v3 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v3` AS with t(c) as (select `t1`.`a` AS `c` from `t1` where `t1`.`b` >= 'c')select `r1`.`c` AS `c` from `t` `r1` where `r1`.`c` = 4 latin1 latin1_swedish_ci select * from v3; c 4 @@ -618,7 +618,7 @@ 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 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 (select `test`.`t1`.`a` AS `c` from `test`.`t1` where `test`.`t1`.`b` >= 'c') `r2`) where `r1`.`c` = `r2`.`c` and `r2`.`c` = 4 latin1 latin1_swedish_ci +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 (select `test`.`t1`.`a` AS `c` from `test`.`t1` where `test`.`t1`.`b` >= 'c') `r2`) where `r1`.`c` = `r2`.`c` and `r2`.`c` = 4 latin1 latin1_swedish_ci select * from v4; c d 4 4 diff --git a/mysql-test/main/cte_recursive.result b/mysql-test/main/cte_recursive.result index 0b22da8..b88f0ff 100644 --- a/mysql-test/main/cte_recursive.result +++ b/mysql-test/main/cte_recursive.result @@ -699,7 +699,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 5 RECURSIVE UNION p ALL NULL NULL NULL NULL 12 100.00 Using where; Using join buffer (flat, BNL join) NULL UNION RESULT <union3,4,5> ALL NULL NULL NULL NULL NULL NULL Warnings: -Note 1003 with recursive ancestor_couple_ids as (/* select#2 */ select `a`.`father` AS `h_id`,`a`.`mother` AS `w_id` from `coupled_ancestors` `a` where `a`.`father` is not null and `a`.`mother` is not null), coupled_ancestors as (/* select#3 */ select `test`.`folks`.`id` AS `id`,`test`.`folks`.`name` AS `name`,`test`.`folks`.`dob` AS `dob`,`test`.`folks`.`father` AS `father`,`test`.`folks`.`mother` AS `mother` from `test`.`folks` where `test`.`folks`.`name` = 'Me' union all /* select#4 */ select `test`.`p`.`id` AS `id`,`test`.`p`.`name` AS `name`,`test`.`p`.`dob` AS `dob`,`test`.`p`.`father` AS `father`,`test`.`p`.`mother` AS `mother` from `test`.`folks` `p` join `ancestor_couple_ids` `fa` where `test`.`p`.`id` = `fa`.`h_id` union all /* select#5 */ select `test`.`p`.`id` AS `id`,`test`.`p`.`name` AS `name`,`test`.`p`.`dob` AS `dob`,`test`.`p`.`father` AS `father`,`test`.`p`.`mother` AS `mother` from `test`.`folks` `p` join `ancestor_couple_ids` `ma` where `test`.`p`.`id` = `ma`.`w_ id`)/* select#1 */ select `h`.`name` AS `name`,`h`.`dob` AS `dob`,`w`.`name` AS `name`,`w`.`dob` AS `dob` from `ancestor_couple_ids` `c` join `coupled_ancestors` `h` join `coupled_ancestors` `w` where `h`.`id` = `c`.`h_id` and `w`.`id` = `c`.`w_id` +Note 1003 with recursive ancestor_couple_ids(h_id,w_id) as (/* select#2 */ select `a`.`father` AS `h_id`,`a`.`mother` AS `w_id` from `coupled_ancestors` `a` where `a`.`father` is not null and `a`.`mother` is not null), coupled_ancestors(id,name,dob,father,mother) as (/* select#3 */ select `test`.`folks`.`id` AS `id`,`test`.`folks`.`name` AS `name`,`test`.`folks`.`dob` AS `dob`,`test`.`folks`.`father` AS `father`,`test`.`folks`.`mother` AS `mother` from `test`.`folks` where `test`.`folks`.`name` = 'Me' union all /* select#4 */ select `test`.`p`.`id` AS `id`,`test`.`p`.`name` AS `name`,`test`.`p`.`dob` AS `dob`,`test`.`p`.`father` AS `father`,`test`.`p`.`mother` AS `mother` from `test`.`folks` `p` join `ancestor_couple_ids` `fa` where `test`.`p`.`id` = `fa`.`h_id` union all /* select#5 */ select `test`.`p`.`id` AS `id`,`test`.`p`.`name` AS `name`,`test`.`p`.`dob` AS `dob`,`test`.`p`.`father` AS `father`,`test`.`p`.`mother` AS `mother` from `test`.`folks` `p` join `ancestor_cou ple_ids` `ma` where `test`.`p`.`id` = `ma`.`w_id`)/* select#1 */ select `h`.`name` AS `name`,`h`.`dob` AS `dob`,`w`.`name` AS `name`,`w`.`dob` AS `dob` from `ancestor_couple_ids` `c` join `coupled_ancestors` `h` join `coupled_ancestors` `w` where `h`.`id` = `c`.`h_id` and `w`.`id` = `c`.`w_id` # simple mutual recursion with recursive ancestor_couple_ids(h_id, w_id) @@ -3091,7 +3091,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 4 DEPENDENT SUBQUERY <derived2> ALL NULL NULL NULL NULL 16 100.00 Using where NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL Warnings: -Note 1003 with recursive destinations as (/* select#2 */ select `test`.`a`.`arrival` AS `city`,1 AS `legs` from `test`.`flights` `a` where `test`.`a`.`departure` = 'Cairo' union /* select#3 */ select `test`.`b`.`arrival` AS `arrival`,`r`.`legs` + 1 AS `r.legs + 1` from `destinations` `r` join `test`.`flights` `b` where `r`.`city` = `test`.`b`.`departure` and !<in_optimizer>(`test`.`b`.`arrival`,<exists>(/* select#4 */ select `destinations`.`city` from `destinations` where trigcond(`test`.`b`.`arrival` = `destinations`.`city` or `destinations`.`city` is null) having trigcond(`destinations`.`city` is null))))/* select#1 */ select `destinations`.`city` AS `city`,`destinations`.`legs` AS `legs` from `destinations` +Note 1003 with recursive destinations(city,legs) as (/* select#2 */ select `test`.`a`.`arrival` AS `city`,1 AS `legs` from `test`.`flights` `a` where `test`.`a`.`departure` = 'Cairo' union /* select#3 */ select `test`.`b`.`arrival` AS `arrival`,`r`.`legs` + 1 AS `r.legs + 1` from `destinations` `r` join `test`.`flights` `b` where `r`.`city` = `test`.`b`.`departure` and !<in_optimizer>(`test`.`b`.`arrival`,<exists>(/* select#4 */ select `destinations`.`city` from `destinations` where trigcond(`test`.`b`.`arrival` = `destinations`.`city` or `destinations`.`city` is null) having trigcond(`destinations`.`city` is null))))/* select#1 */ select `destinations`.`city` AS `city`,`destinations`.`legs` AS `legs` from `destinations` set standard_compliant_cte=default; drop table flights; # @@ -3378,7 +3378,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 3 RECURSIVE UNION <derived2> ALL NULL NULL NULL NULL 2 100.00 Using where NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL Warnings: -Note 1003 with recursive rcte as (/* select#2 */ select 1 AS `a` union /* select#3 */ select cast(`rcte`.`a` + 1 as unsigned) AS `cast(a+1 as unsigned)` from `rcte` where `rcte`.`a` < 10), cte1 as (/* select#4 */ select count(0) AS `c1` from `rcte` join `test`.`t1` where `rcte`.`a` between 3 and 5 and `test`.`t1`.`id` = `rcte`.`a` - 3), cte2 as (/* select#5 */ select count(0) AS `c2` from `rcte` join `test`.`t1` where `rcte`.`a` between 7 and 8 and `test`.`t1`.`id` = `rcte`.`a` - 7)/* select#1 */ select `cte1`.`c1` AS `c1`,`cte2`.`c2` AS `c2` from `cte1` join `cte2` +Note 1003 with recursive rcte(a) as (/* select#2 */ select 1 AS `a` union /* select#3 */ select cast(`rcte`.`a` + 1 as unsigned) AS `cast(a+1 as unsigned)` from `rcte` where `rcte`.`a` < 10), cte1 as (/* select#4 */ select count(0) AS `c1` from `rcte` join `test`.`t1` where `rcte`.`a` between 3 and 5 and `test`.`t1`.`id` = `rcte`.`a` - 3), cte2 as (/* select#5 */ select count(0) AS `c2` from `rcte` join `test`.`t1` where `rcte`.`a` between 7 and 8 and `test`.`t1`.`id` = `rcte`.`a` - 7)/* select#1 */ select `cte1`.`c1` AS `c1`,`cte2`.`c2` AS `c2` from `cte1` join `cte2` prepare stmt from "with recursive rcte(a) as (select 1 union select cast(a+1 as unsigned) from rcte where a < 10), diff --git a/mysql-test/main/except.result b/mysql-test/main/except.result index 9c5a3ea..4c6a094 100644 --- a/mysql-test/main/except.result +++ b/mysql-test/main/except.result @@ -24,7 +24,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 3 EXCEPT t2 ALL NULL NULL NULL NULL 2 100.00 NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL NULL Warnings: -Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b` from (/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` except (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`)) `a` +Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b` from ((/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) except (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`)) `a` EXPLAIN format=json (select a,b from t1) except (select c,d from t2); EXPLAIN { @@ -229,7 +229,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 3 EXCEPT t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer (flat, BNL join) NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL NULL Warnings: -Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b`,`a`.`e` AS `e`,`a`.`f` AS `f` from (/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t1` join `test`.`t3` except (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t4`.`g` AS `g`,`test`.`t4`.`h` AS `h` from `test`.`t2` join `test`.`t4`)) `a` +Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b`,`a`.`e` AS `e`,`a`.`f` AS `f` from ((/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t1` join `test`.`t3`) except (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t4`.`g` AS `g`,`test`.`t4`.`h` AS `h` from `test`.`t2` join `test`.`t4`)) `a` EXPLAIN format=json (select a,b,e,f from t1,t3) except (select c,d,g,h from t2,t4); EXPLAIN { diff --git a/mysql-test/main/intersect.result b/mysql-test/main/intersect.result index bd88243..4b66580 100644 --- a/mysql-test/main/intersect.result +++ b/mysql-test/main/intersect.result @@ -37,7 +37,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 4 INTERSECT t3 ALL NULL NULL NULL NULL 3 100.00 NULL INTERSECT RESULT <intersect2,3,4> ALL NULL NULL NULL NULL NULL NULL Warnings: -Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b` from (/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` intersect (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect (/* select#4 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `a` +Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b` from ((/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) intersect (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect (/* select#4 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `a` EXPLAIN format=json (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3); EXPLAIN { @@ -278,7 +278,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 3 INTERSECT t3 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join) NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL NULL Warnings: -Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b` from (/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` intersect (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t3`.`e` AS `e` from `test`.`t2` join `test`.`t3`)) `a` +Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b` from ((/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) intersect (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t3`.`e` AS `e` from `test`.`t2` join `test`.`t3`)) `a` EXPLAIN format=json (select a,b from t1) intersect (select c,e from t2,t3); EXPLAIN { @@ -720,7 +720,7 @@ a b drop procedure p1; 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 (select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) union select `__6`.`c` AS `c`,`__6`.`d` AS `d` from (select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` intersect (select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `__6` union (select 4 AS `4`,4 AS `4`) latin1 latin1_swedish_ci +v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS (select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) union select `__6`.`c` AS `c`,`__6`.`d` AS `d` from ((select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect (select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `__6` union (select 4 AS `4`,4 AS `4`) latin1 latin1_swedish_ci drop view v1; drop tables t1,t2,t3; # diff --git a/mysql-test/main/parser.result b/mysql-test/main/parser.result index 2e234216..46ec3ea 100644 --- a/mysql-test/main/parser.result +++ b/mysql-test/main/parser.result @@ -1776,7 +1776,7 @@ End of 10.3 tests # create table t1 (a int); (select * from t1) for update; -ERROR HY000: Incorrect usage of lock options and SELECT in brackets +a (select * from t1) union (select * from t1) for update; ERROR HY000: Incorrect usage of lock options and SELECT in brackets (select * from t1 for update); diff --git a/mysql-test/main/parser.test b/mysql-test/main/parser.test index 35a2334..d024f06 100644 --- a/mysql-test/main/parser.test +++ b/mysql-test/main/parser.test @@ -1544,7 +1544,6 @@ SELECT @@GLOBAL.role; --echo # create table t1 (a int); ---error ER_WRONG_USAGE (select * from t1) for update; --error ER_WRONG_USAGE (select * from t1) union (select * from t1) for update; diff --git a/mysql-test/main/ps.result b/mysql-test/main/ps.result index 1e84618..766abc3 100644 --- a/mysql-test/main/ps.result +++ b/mysql-test/main/ps.result @@ -4484,7 +4484,7 @@ DEALLOCATE PREPARE stmt; # PREPARE stmt FROM 'SELECT ? FROM DUAL'; EXECUTE stmt USING (SELECT 1); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1)' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 DEALLOCATE PREPARE stmt; CREATE FUNCTION f1() RETURNS VARCHAR(10) RETURN 'test'; PREPARE stmt FROM 'SELECT ? FROM DUAL'; @@ -4683,7 +4683,7 @@ ERROR 21000: Operand should contain 1 column(s) # Testing disallowed expressions in USING # EXECUTE IMMEDIATE 'SELECT ? FROM DUAL' USING (SELECT 1); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1)' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 CREATE FUNCTION f1() RETURNS VARCHAR(10) RETURN 'test'; EXECUTE IMMEDIATE 'SELECT ? FROM DUAL' USING f1(); ERROR 42000: EXECUTE IMMEDIATE does not support subqueries or stored functions @@ -4869,9 +4869,9 @@ ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2 PREPARE stmt FROM CONCAT(_latin1'SELECT 1 AS c FROM ', _latin2 'DUAL'); ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'concat' EXECUTE IMMEDIATE (SELECT 'SELECT 1'); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 'SELECT 1')' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 PREPARE stmt FROM (SELECT 'SELECT 1'); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 'SELECT 1')' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 EXECUTE IMMEDIATE a; ERROR 42S22: Unknown column 'a' in 'field list' PREPARE stmt FROM a; diff --git a/mysql-test/main/statement-expr.result b/mysql-test/main/statement-expr.result index c73ed28..d19a1ce 100644 --- a/mysql-test/main/statement-expr.result +++ b/mysql-test/main/statement-expr.result @@ -12,9 +12,9 @@ ROW(1, 7) IN (SELECT id, id1 FROM t1 WHERE id1= 8) 0 DROP TABLE t1; EXECUTE IMMEDIATE 'SELECT ?' USING (1 IN (SELECT * FROM t1)); -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 'SELECT * FROM t1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 EXECUTE IMMEDIATE 'SELECT ?' USING (SELECT * FROM t1); -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 'SELECT * FROM t1)' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 CREATE TABLE t1 (id INT); INSERT INTO t1 VALUES (10); CREATE PROCEDURE p1(a INT) BEGIN END; @@ -45,21 +45,21 @@ ERROR 42000: You have an error in your SQL syntax; check the manual that corresp SIGNAL SQLSTATE '01000'; END' at line 3 PREPARE stmt FROM (1 IN (SELECT * FROM t1)); -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 'SELECT * FROM t1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 PREPARE stmt FROM EXISTS (SELECT * FROM t1); -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 '(SELECT * FROM t1)' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 EXECUTE IMMEDIATE (1 IN (SELECT * FROM t1)); -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 'SELECT * FROM t1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 EXECUTE IMMEDIATE EXISTS (SELECT * FROM t1); -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 '(SELECT * FROM t1)' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 GET DIAGNOSTICS CONDITION (1 IN (SELECT * FROM t1)) @errno=MYSQL_ERRNO; 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 '(1 IN (SELECT * FROM t1)) @errno=MYSQL_ERRNO' at line 1 GET DIAGNOSTICS CONDITION EXISTS (SELECT * FROM t1) @errno=MYSQL_ERRNO; 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 'EXISTS (SELECT * FROM t1) @errno=MYSQL_ERRNO' at line 1 PURGE BINARY LOGS BEFORE (1 IN (SELECT * FROM t1)); -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 'SELECT * FROM t1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 PURGE BINARY LOGS BEFORE EXISTS (SELECT * FROM t1); -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 '(SELECT * FROM t1)' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 CREATE TABLE t1 (a INT); INSERT INTO t1 VALUES (1),(2),(3); DO 1 IN (SELECT * FROM t1); diff --git a/mysql-test/main/subselect.result b/mysql-test/main/subselect.result index 1fdf8d1..28909ae 100644 --- a/mysql-test/main/subselect.result +++ b/mysql-test/main/subselect.result @@ -82,7 +82,7 @@ SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a)); select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1)); ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PROCEDURE ANALYSE(1))' at line 1 SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL; ERROR 42S22: Unknown column 'a' in 'field list' SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL; @@ -1132,7 +1132,7 @@ ERROR 42S02: Table 'test.t1' doesn't exist CREATE TABLE t1 (a int, KEY(a)); HANDLER t1 OPEN; HANDLER t1 READ a=((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 HANDLER t1 CLOSE; drop table t1; create table t1 (a int); @@ -3735,8 +3735,11 @@ WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1))); i explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12)) from t1; -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 'union (select t12.i from t1 t12)) -from t1' at line 1 +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 UNION NULL NULL NULL NULL NULL NULL NULL no matching row in const table +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL explain select * from t1 where not exists ((select t11.i from t1 t11) union (select t12.i from t1 t12)); id select_type table type possible_keys key key_len ref rows Extra @@ -5304,7 +5307,7 @@ SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ) 1 SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1; -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) 1 @@ -5334,7 +5337,8 @@ SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); a 1 SELECT * FROM t1 WHERE a = ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 @@ -5342,7 +5346,8 @@ SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 SELECT * FROM t1 WHERE a IN ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); a 1 diff --git a/mysql-test/main/subselect.test b/mysql-test/main/subselect.test index 82823b4..994a2c1 100644 --- a/mysql-test/main/subselect.test +++ b/mysql-test/main/subselect.test @@ -2610,8 +2610,6 @@ SELECT sql_no_cache * FROM t1 WHERE NOT EXISTS SELECT * FROM t1 WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1))); -#TODO:not supported ---error ER_PARSE_ERROR explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12)) from t1; @@ -4413,11 +4411,9 @@ SELECT * FROM t1 WHERE a = ALL ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); ---error ER_PARSE_ERROR SELECT * FROM t1 WHERE a = ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); ---error ER_PARSE_ERROR SELECT * FROM t1 WHERE a IN ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); diff --git a/mysql-test/main/subselect_no_exists_to_in.result b/mysql-test/main/subselect_no_exists_to_in.result index 613a0d8..1849210 100644 --- a/mysql-test/main/subselect_no_exists_to_in.result +++ b/mysql-test/main/subselect_no_exists_to_in.result @@ -86,7 +86,7 @@ SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a)); select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1)); ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PROCEDURE ANALYSE(1))' at line 1 SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL; ERROR 42S22: Unknown column 'a' in 'field list' SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL; @@ -1136,7 +1136,7 @@ ERROR 42S02: Table 'test.t1' doesn't exist CREATE TABLE t1 (a int, KEY(a)); HANDLER t1 OPEN; HANDLER t1 READ a=((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 HANDLER t1 CLOSE; drop table t1; create table t1 (a int); @@ -3738,8 +3738,11 @@ WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1))); i explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12)) from t1; -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 'union (select t12.i from t1 t12)) -from t1' at line 1 +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 UNION NULL NULL NULL NULL NULL NULL NULL no matching row in const table +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL explain select * from t1 where not exists ((select t11.i from t1 t11) union (select t12.i from t1 t12)); id select_type table type possible_keys key key_len ref rows Extra @@ -5306,7 +5309,7 @@ SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ) 1 SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1; -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) 1 @@ -5336,7 +5339,8 @@ SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); a 1 SELECT * FROM t1 WHERE a = ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 @@ -5344,7 +5348,8 @@ SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 SELECT * FROM t1 WHERE a IN ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); a 1 diff --git a/mysql-test/main/subselect_no_mat.result b/mysql-test/main/subselect_no_mat.result index 982e701..63784c1 100644 --- a/mysql-test/main/subselect_no_mat.result +++ b/mysql-test/main/subselect_no_mat.result @@ -89,7 +89,7 @@ SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a)); select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1)); ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PROCEDURE ANALYSE(1))' at line 1 SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL; ERROR 42S22: Unknown column 'a' in 'field list' SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL; @@ -1139,7 +1139,7 @@ ERROR 42S02: Table 'test.t1' doesn't exist CREATE TABLE t1 (a int, KEY(a)); HANDLER t1 OPEN; HANDLER t1 READ a=((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 HANDLER t1 CLOSE; drop table t1; create table t1 (a int); @@ -3738,8 +3738,11 @@ WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1))); i explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12)) from t1; -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 'union (select t12.i from t1 t12)) -from t1' at line 1 +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 UNION NULL NULL NULL NULL NULL NULL NULL no matching row in const table +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL explain select * from t1 where not exists ((select t11.i from t1 t11) union (select t12.i from t1 t12)); id select_type table type possible_keys key key_len ref rows Extra @@ -5304,7 +5307,7 @@ SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ) 1 SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1; -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) 1 @@ -5334,7 +5337,8 @@ SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); a 1 SELECT * FROM t1 WHERE a = ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 @@ -5342,7 +5346,8 @@ SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 SELECT * FROM t1 WHERE a IN ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); a 1 diff --git a/mysql-test/main/subselect_no_opts.result b/mysql-test/main/subselect_no_opts.result index 1937f2a..0923d3c 100644 --- a/mysql-test/main/subselect_no_opts.result +++ b/mysql-test/main/subselect_no_opts.result @@ -85,7 +85,7 @@ SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a)); select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1)); ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PROCEDURE ANALYSE(1))' at line 1 SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL; ERROR 42S22: Unknown column 'a' in 'field list' SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL; @@ -1135,7 +1135,7 @@ ERROR 42S02: Table 'test.t1' doesn't exist CREATE TABLE t1 (a int, KEY(a)); HANDLER t1 OPEN; HANDLER t1 READ a=((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 HANDLER t1 CLOSE; drop table t1; create table t1 (a int); @@ -3734,8 +3734,11 @@ WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1))); i explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12)) from t1; -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 'union (select t12.i from t1 t12)) -from t1' at line 1 +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 UNION NULL NULL NULL NULL NULL NULL NULL no matching row in const table +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL explain select * from t1 where not exists ((select t11.i from t1 t11) union (select t12.i from t1 t12)); id select_type table type possible_keys key key_len ref rows Extra @@ -5300,7 +5303,7 @@ SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ) 1 SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1; -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) 1 @@ -5330,7 +5333,8 @@ SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); a 1 SELECT * FROM t1 WHERE a = ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 @@ -5338,7 +5342,8 @@ SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 SELECT * FROM t1 WHERE a IN ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); a 1 diff --git a/mysql-test/main/subselect_no_scache.result b/mysql-test/main/subselect_no_scache.result index 929af9b..5184405 100644 --- a/mysql-test/main/subselect_no_scache.result +++ b/mysql-test/main/subselect_no_scache.result @@ -88,7 +88,7 @@ SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a)); select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1)); ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PROCEDURE ANALYSE(1))' at line 1 SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL; ERROR 42S22: Unknown column 'a' in 'field list' SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL; @@ -1138,7 +1138,7 @@ ERROR 42S02: Table 'test.t1' doesn't exist CREATE TABLE t1 (a int, KEY(a)); HANDLER t1 OPEN; HANDLER t1 READ a=((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 HANDLER t1 CLOSE; drop table t1; create table t1 (a int); @@ -3741,8 +3741,11 @@ WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1))); i explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12)) from t1; -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 'union (select t12.i from t1 t12)) -from t1' at line 1 +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 UNION NULL NULL NULL NULL NULL NULL NULL no matching row in const table +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL explain select * from t1 where not exists ((select t11.i from t1 t11) union (select t12.i from t1 t12)); id select_type table type possible_keys key key_len ref rows Extra @@ -5310,7 +5313,7 @@ SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ) 1 SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1; -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) 1 @@ -5340,7 +5343,8 @@ SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); a 1 SELECT * FROM t1 WHERE a = ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 @@ -5348,7 +5352,8 @@ SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 SELECT * FROM t1 WHERE a IN ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); a 1 diff --git a/mysql-test/main/subselect_no_semijoin.result b/mysql-test/main/subselect_no_semijoin.result index 52c81e5..a7ead73 100644 --- a/mysql-test/main/subselect_no_semijoin.result +++ b/mysql-test/main/subselect_no_semijoin.result @@ -85,7 +85,7 @@ SELECT 1 FROM (SELECT 1 as a) b WHERE 1 IN (SELECT (SELECT a)); select (SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE(1)); ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PROCEDURE ANALYSE(1))' at line 1 SELECT 1 FROM (SELECT 1) a PROCEDURE ANALYSE((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NULL; ERROR 42S22: Unknown column 'a' in 'field list' SELECT (SELECT 1) as a FROM (SELECT 1) b WHERE (SELECT a) IS NOT NULL; @@ -1135,7 +1135,7 @@ ERROR 42S02: Table 'test.t1' doesn't exist CREATE TABLE t1 (a int, KEY(a)); HANDLER t1 OPEN; HANDLER t1 READ a=((SELECT 1)); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1 HANDLER t1 CLOSE; drop table t1; create table t1 (a int); @@ -3734,8 +3734,11 @@ WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1))); i explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12)) from t1; -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 'union (select t12.i from t1 t12)) -from t1' at line 1 +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 system NULL NULL NULL NULL 0 Const row not found +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 UNION NULL NULL NULL NULL NULL NULL NULL no matching row in const table +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL explain select * from t1 where not exists ((select t11.i from t1 t11) union (select t12.i from t1 t12)); id select_type table type possible_keys key key_len ref rows Extra @@ -5300,7 +5303,7 @@ SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ) 1 SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1; -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) 1 @@ -5330,7 +5333,8 @@ SELECT * FROM t1 WHERE a IN ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) ); a 1 SELECT * FROM t1 WHERE a = ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 @@ -5338,7 +5342,8 @@ SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); a 1 SELECT * FROM t1 WHERE a IN ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ); -ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1 +a +1 SELECT * FROM t1 WHERE a = ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ); a 1 diff --git a/mysql-test/main/subselect_notembedded.result b/mysql-test/main/subselect_notembedded.result index 9153706..5822115 100644 --- a/mysql-test/main/subselect_notembedded.result +++ b/mysql-test/main/subselect_notembedded.result @@ -1,5 +1,5 @@ purge master logs before (select adddate(current_timestamp(), interval -4 day)); -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 'select adddate(current_timestamp(), interval -4 day))' at line 1 +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1 purge master logs before adddate(current_timestamp(), interval -4 day); drop table if exists t1; create table t1(a int,b int,key(a),key(b)); diff --git a/sql/item_subselect.cc b/sql/item_subselect.cc index 1d950a7..54c63ea 100644 --- a/sql/item_subselect.cc +++ b/sql/item_subselect.cc @@ -122,7 +122,8 @@ void Item_subselect::init(st_select_lex *select_lex, parsing_place= (outer_select->in_sum_expr ? NO_MATTER : outer_select->parsing_place); - if (unit->is_unit_op() && unit->first_select()->next_select()) + if (unit->is_unit_op() && + (unit->first_select()->next_select() or unit->fake_select_lex)) engine= new subselect_union_engine(unit, result, this); else engine= new subselect_single_select_engine(select_lex, result, this); diff --git a/sql/sql_cte.cc b/sql/sql_cte.cc index 6f5162b..a391adb 100644 --- a/sql/sql_cte.cc +++ b/sql/sql_cte.cc @@ -1438,6 +1438,22 @@ void With_clause::print(String *str, enum_query_type query_type) void With_element::print(String *str, enum_query_type query_type) { str->append(query_name); + if (column_list.elements) + { + List_iterator_fast<LEX_CSTRING> li(column_list); + str->append('('); + for (LEX_CSTRING *col_name= li++; ; ) + { + str->append(col_name); + col_name= li++; + if (!col_name) + { + str->append(')'); + break; + } + str->append(','); + } + } str->append(STRING_WITH_LEN(" as ")); str->append('('); spec->print(str, query_type); diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc index 777391d..a7c20e3 100644 --- a/sql/sql_lex.cc +++ b/sql/sql_lex.cc @@ -1444,7 +1444,7 @@ int Lex_input_stream::lex_token(YYSTYPE *yylval, THD *thd) return LEFT_PAREN_LIKE; if (token == WITH) return LEFT_PAREN_WITH; - if (token != left_paren && token != SELECT_SYM) + if (token != left_paren && token != SELECT_SYM && token != VALUES) return LEFT_PAREN_ALT; else return left_paren; @@ -5338,10 +5338,9 @@ LEX::create_unit(SELECT_LEX *first_sel) SELECT_LEX_UNIT *unit; DBUG_ENTER("LEX::create_unit"); - if (first_sel->master_unit()) - DBUG_RETURN(first_sel->master_unit()); + unit = first_sel->master_unit(); - if (!(unit= alloc_unit())) + if (!unit && !(unit= alloc_unit())) DBUG_RETURN(NULL); unit->register_select_chain(first_sel); @@ -8990,7 +8989,8 @@ bool LEX::insert_select_hack(SELECT_LEX *sel) builtin_select.link_prev= NULL; // indicator of removal } - set_main_unit(sel->master_unit()); + if (set_main_unit(sel->master_unit())) + return true; DBUG_ASSERT(builtin_select.table_list.elements == 1); TABLE_LIST *insert_table= builtin_select.table_list.first; @@ -9034,9 +9034,10 @@ bool LEX::insert_select_hack(SELECT_LEX *sel) } -/* +/** Create an Item_singlerow_subselect for a query expression. */ + Item *LEX::create_item_query_expression(THD *thd, const char *tok_start, st_select_lex_unit *unit) @@ -9051,118 +9052,17 @@ Item *LEX::create_item_query_expression(THD *thd, SELECT_LEX *curr_sel= select_stack_head(); DBUG_ASSERT(current_select == curr_sel); if (!curr_sel) + { curr_sel= &builtin_select; - curr_sel->register_unit(unit, &curr_sel->context); - curr_sel->add_statistics(unit); + curr_sel->register_unit(unit, &curr_sel->context); + curr_sel->add_statistics(unit); + } return new (thd->mem_root) Item_singlerow_subselect(thd, unit->first_select()); } -/** - Process unit parsed in brackets -*/ - -bool LEX::parsed_unit_in_brackets(SELECT_LEX_UNIT *unit) -{ - SELECT_LEX *first_in_nest= unit->pre_last_parse->next_select()->first_nested; - if (first_in_nest->first_nested != first_in_nest) - { - /* There is a priority jump starting from first_in_nest */ - if (create_priority_nest(first_in_nest) == NULL) - return true; - unit->fix_distinct(); - } - push_select(unit->fake_select_lex); - return false; -} - - - -/** - Process tail of unit parsed in brackets -*/ -SELECT_LEX *LEX::parsed_unit_in_brackets_tail(SELECT_LEX_UNIT *unit, - Lex_order_limit_lock * l) -{ - pop_select(); - if (l) - { - (l)->set_to(unit->fake_select_lex); - } - return unit->first_select(); -} - - -/** - Process select parsed in brackets -*/ - -SELECT_LEX *LEX::parsed_select(SELECT_LEX *sel, Lex_order_limit_lock * l) -{ - pop_select(); - if (l) - { - if (sel->next_select()) - { - SELECT_LEX_UNIT *unit= sel->master_unit(); - if (!unit) - unit= create_unit(sel); - if (!unit) - return NULL; - if (!unit->fake_select_lex->is_set_query_expr_tail) - l->set_to(unit->fake_select_lex); - else - { - if (!l->order_list && !unit->fake_select_lex->explicit_limit) - { - sel= unit->fake_select_lex; - l->order_list= &sel->order_list; - } - else - sel= wrap_unit_into_derived(unit); - if (!sel) - return NULL; - l->set_to(sel); - } - } - else if (!sel->is_set_query_expr_tail) - { - l->set_to(sel); - } - else - { - if (!l->order_list && !sel->explicit_limit) - l->order_list= &sel->order_list; - else - { - SELECT_LEX_UNIT *unit= create_unit(sel); - if (!unit) - return NULL; - sel= wrap_unit_into_derived(unit); - } - if (!sel) - return NULL; - l->set_to(sel); - } - } - return sel; -} - - -/** - Process select parsed in brackets -*/ - -SELECT_LEX *LEX::parsed_select_in_brackets(SELECT_LEX *sel, - Lex_order_limit_lock * l) -{ - sel->braces= TRUE; - return parsed_select(sel, l); -} - - SELECT_LEX_UNIT *LEX::parsed_select_expr_start(SELECT_LEX *s1, SELECT_LEX *s2, enum sub_select_type unit_type, bool distinct) @@ -9193,6 +9093,7 @@ SELECT_LEX_UNIT *LEX::parsed_select_expr_start(SELECT_LEX *s1, SELECT_LEX *s2, if (res == NULL) return NULL; res->pre_last_parse= sel1; + push_select(res->fake_select_lex); return res; } @@ -9205,12 +9106,6 @@ SELECT_LEX_UNIT *LEX::parsed_select_expr_cont(SELECT_LEX_UNIT *unit, SELECT_LEX *sel1; if (!s2->next_select()) sel1= s2; - else - { - sel1= wrap_unit_into_derived(s2->master_unit()); - if (!sel1) - return NULL; - } SELECT_LEX *last= unit->pre_last_parse->next_select(); int cmp= oracle? 0 : cmp_unit_op(unit_type, last->get_linkage()); @@ -9242,41 +9137,73 @@ SELECT_LEX_UNIT *LEX::parsed_select_expr_cont(SELECT_LEX_UNIT *unit, return unit; } + /** - Process parsed select in body + Add primary expression as the next term in a given query expression body + pruducing a new query expression body */ -SELECT_LEX_UNIT *LEX::parsed_body_select(SELECT_LEX *sel, - Lex_order_limit_lock * l) +SELECT_LEX_UNIT * +LEX::add_primary_to_query_expression_body(SELECT_LEX_UNIT *unit, + SELECT_LEX *sel, + enum sub_select_type unit_type, + bool distinct, + bool oracle) { - if (sel->braces && l && l->lock.defined_lock) + SELECT_LEX *sel2= sel; + if (sel->master_unit() && sel->master_unit()->first_select()->next_select()) { - my_error(ER_WRONG_USAGE, MYF(0), "lock options", - "SELECT in brackets"); - return NULL; + sel2= wrap_unit_into_derived(sel->master_unit()); + if (!sel2) + return NULL; } - if (!(sel= parsed_select(sel, l))) - return NULL; + SELECT_LEX *sel1= unit->first_select(); + if (!sel1->next_select()) + unit= parsed_select_expr_start(sel1, sel2, unit_type, distinct); + else + unit= parsed_select_expr_cont(unit, sel2, unit_type, distinct, oracle); + return unit; +} - SELECT_LEX_UNIT *res= create_unit(sel); - if (res && sel->tvc && sel->order_list.elements) + +/** + Add query primary to a parenthesized query primary + pruducing a new query expression body +*/ + +SELECT_LEX_UNIT * +LEX::add_primary_to_query_expression_body_ext_parens( + SELECT_LEX_UNIT *unit, + SELECT_LEX *sel, + enum sub_select_type unit_type, + bool distinct) +{ + SELECT_LEX *sel1= unit->first_select(); + if (unit->first_select()->next_select()) { - if (res->add_fake_select_lex(thd)) + sel1= wrap_unit_into_derived(unit); + if (!sel1) + return NULL; + if (!create_unit(sel1)) return NULL; - SELECT_LEX *fake= res->fake_select_lex; - fake->order_list= sel->order_list; - fake->explicit_limit= sel->explicit_limit; - fake->select_limit= sel->select_limit; - fake->offset_limit= sel->offset_limit; } - return res; + SELECT_LEX *sel2= sel; + if (sel->master_unit() && sel->master_unit()->first_select()->next_select()) + { + sel2= wrap_unit_into_derived(sel->master_unit()); + if (!sel2) + return NULL; + } + unit= parsed_select_expr_start(sel1, sel2, unit_type, distinct); + return unit; } + /** - Process parsed unit in body + Process multi-operand query expression body */ -bool LEX::parsed_body_unit(SELECT_LEX_UNIT *unit) +bool LEX::parsed_multi_operand_query_expression_body(SELECT_LEX_UNIT *unit) { SELECT_LEX *first_in_nest= unit->pre_last_parse->next_select()->first_nested; @@ -9287,27 +9214,60 @@ bool LEX::parsed_body_unit(SELECT_LEX_UNIT *unit) return true; unit->fix_distinct(); } - push_select(unit->fake_select_lex); return false; } + /** - Process parsed tail of unit in body + Add non-empty tail to a query expression body +*/ - TODO: make processing for double tail case +SELECT_LEX_UNIT *LEX::add_tail_to_query_expression_body(SELECT_LEX_UNIT *unit, + Lex_order_limit_lock *l) +{ + DBUG_ASSERT(l != NULL); + pop_select(); + SELECT_LEX *sel= unit->first_select()->next_select() ? unit->fake_select_lex : + unit->first_select(); + l->set_to(sel); + return unit; +} + + +/** + Add non-empty tail to a parenthesized query primary */ -SELECT_LEX_UNIT *LEX::parsed_body_unit_tail(SELECT_LEX_UNIT *unit, - Lex_order_limit_lock * l) +SELECT_LEX_UNIT * +LEX::add_tail_to_query_expression_body_ext_parens(SELECT_LEX_UNIT *unit, + Lex_order_limit_lock *l) { + SELECT_LEX *sel= unit->first_select()->next_select() ? unit->fake_select_lex : + unit->first_select(); + + DBUG_ASSERT(l != NULL); + pop_select(); - if (l) + if (sel->is_set_query_expr_tail) { - (l)->set_to(unit->fake_select_lex); + if (!l->order_list && !sel->explicit_limit) + l->order_list= &sel->order_list; + else + { + if (!unit) + return NULL; + sel= wrap_unit_into_derived(unit); + if (!sel) + return NULL; + if (!create_unit(sel)) + return NULL; + } } - return unit; + l->set_to(sel); + return sel->master_unit(); } + /** Process subselect parsing */ @@ -9333,7 +9293,6 @@ SELECT_LEX *LEX::parsed_subselect(SELECT_LEX_UNIT *unit, char *place) } - /** Process INSERT-like select */ @@ -9388,40 +9347,8 @@ SELECT_LEX *LEX::parsed_TVC_end() } -TABLE_LIST *LEX::parsed_derived_select(SELECT_LEX *sel, int for_system_time, - LEX_CSTRING *alias) -{ - TABLE_LIST *res; - derived_tables|= DERIVED_SUBQUERY; - sel->set_linkage(DERIVED_TABLE_TYPE); - sel->braces= FALSE; - // Add the subtree of subquery to the current SELECT_LEX - SELECT_LEX *curr_sel= select_stack_head(); - DBUG_ASSERT(current_select == curr_sel); - SELECT_LEX_UNIT *unit= sel->master_unit(); - if (!unit) - { - unit= create_unit(sel); - if (!unit) - return NULL; - } - curr_sel->register_unit(unit, &curr_sel->context); - curr_sel->add_statistics(unit); - - Table_ident *ti= new (thd->mem_root) Table_ident(unit); - if (ti == NULL) - return NULL; - if (!(res= curr_sel->add_table_to_list(thd, ti, alias, 0, - TL_READ, MDL_SHARED_READ))) - return NULL; - if (for_system_time) - { - res->vers_conditions= vers_conditions; - } - return res; -} -TABLE_LIST *LEX::parsed_derived_unit(SELECT_LEX_UNIT *unit, +TABLE_LIST *LEX::parsed_derived_table(SELECT_LEX_UNIT *unit, int for_system_time, LEX_CSTRING *alias) { @@ -9432,8 +9359,6 @@ TABLE_LIST *LEX::parsed_derived_unit(SELECT_LEX_UNIT *unit, // Add the subtree of subquery to the current SELECT_LEX SELECT_LEX *curr_sel= select_stack_head(); DBUG_ASSERT(current_select == curr_sel); - curr_sel->register_unit(unit, &curr_sel->context); - curr_sel->add_statistics(unit); Table_ident *ti= new (thd->mem_root) Table_ident(unit); if (ti == NULL) @@ -9451,7 +9376,8 @@ TABLE_LIST *LEX::parsed_derived_unit(SELECT_LEX_UNIT *unit, bool LEX::parsed_create_view(SELECT_LEX_UNIT *unit, int check) { SQL_I_List<TABLE_LIST> *save= &first_select_lex()->table_list; - set_main_unit(unit); + if (set_main_unit(unit)) + return true; if (check_main_unit_semantics()) return true; first_select_lex()->table_list.push_front(save); @@ -9474,7 +9400,8 @@ bool LEX::select_finalize(st_select_lex_unit *expr) sql_command= SQLCOM_SELECT; selects_allow_into= TRUE; selects_allow_procedure= TRUE; - set_main_unit(expr); + if (set_main_unit(expr)) + return true; return check_main_unit_semantics(); } @@ -9485,6 +9412,7 @@ bool LEX::select_finalize(st_select_lex_unit *expr, Lex_select_lock l) select_finalize(expr); } + /* "IN" and "EXISTS" subselect can appear in two statement types: @@ -9517,7 +9445,6 @@ void LEX::relink_hack(st_select_lex *select_lex) } - bool SELECT_LEX_UNIT::set_lock_to_the_last_select(Lex_select_lock l) { if (l.defined_lock) diff --git a/sql/sql_lex.h b/sql/sql_lex.h index 0e1d17d..6ead29b 100644 --- a/sql/sql_lex.h +++ b/sql/sql_lex.h @@ -4429,9 +4429,6 @@ struct LEX: public Query_tables_list insert_list= 0; } - bool make_select_in_brackets(SELECT_LEX* dummy_select, - SELECT_LEX *nselect, bool automatic); - SELECT_LEX_UNIT *alloc_unit(); SELECT_LEX *alloc_select(bool is_select); SELECT_LEX_UNIT *create_unit(SELECT_LEX*); @@ -4441,7 +4438,7 @@ struct LEX: public Query_tables_list bool insert_select_hack(SELECT_LEX *sel); SELECT_LEX *create_priority_nest(SELECT_LEX *first_in_nest); - void set_main_unit(st_select_lex_unit *u) + bool set_main_unit(st_select_lex_unit *u) { unit.options= u->options; unit.uncacheable= u->uncacheable; @@ -4451,16 +4448,10 @@ struct LEX: public Query_tables_list unit.union_distinct= u->union_distinct; unit.set_with_clause(u->with_clause); builtin_select.exclude_from_global(); + return false; } bool check_main_unit_semantics(); - // reaction on different parsed parts (bodies are in sql_yacc.yy) - bool parsed_unit_in_brackets(SELECT_LEX_UNIT *unit); - SELECT_LEX *parsed_select(SELECT_LEX *sel, Lex_order_limit_lock * l); - SELECT_LEX *parsed_unit_in_brackets_tail(SELECT_LEX_UNIT *unit, - Lex_order_limit_lock * l); - SELECT_LEX *parsed_select_in_brackets(SELECT_LEX *sel, - Lex_order_limit_lock * l); SELECT_LEX_UNIT *parsed_select_expr_start(SELECT_LEX *s1, SELECT_LEX *s2, enum sub_select_type unit_type, bool distinct); @@ -4468,20 +4459,35 @@ struct LEX: public Query_tables_list SELECT_LEX *s2, enum sub_select_type unit_type, bool distinct, bool oracle); - SELECT_LEX_UNIT *parsed_body_select(SELECT_LEX *sel, - Lex_order_limit_lock * l); - bool parsed_body_unit(SELECT_LEX_UNIT *unit); - SELECT_LEX_UNIT *parsed_body_unit_tail(SELECT_LEX_UNIT *unit, - Lex_order_limit_lock * l); + bool parsed_multi_operand_query_expression_body(SELECT_LEX_UNIT *unit); + SELECT_LEX_UNIT *add_tail_to_query_expression_body(SELECT_LEX_UNIT *unit, + Lex_order_limit_lock *l); + SELECT_LEX_UNIT * + add_tail_to_query_expression_body_ext_parens(SELECT_LEX_UNIT *unit, + Lex_order_limit_lock *l); + SELECT_LEX_UNIT *parsed_body_ext_parens_primary(SELECT_LEX_UNIT *unit, + SELECT_LEX *primary, + enum sub_select_type unit_type, + bool distinct); + SELECT_LEX_UNIT * + add_primary_to_query_expression_body(SELECT_LEX_UNIT *unit, + SELECT_LEX *sel, + enum sub_select_type unit_type, + bool distinct, + bool oracle); + SELECT_LEX_UNIT * + add_primary_to_query_expression_body_ext_parens( + SELECT_LEX_UNIT *unit, + SELECT_LEX *sel, + enum sub_select_type unit_type, + bool distinct); SELECT_LEX *parsed_subselect(SELECT_LEX_UNIT *unit, char *place); bool parsed_insert_select(SELECT_LEX *firs_select); bool parsed_TVC_start(); SELECT_LEX *parsed_TVC_end(); - TABLE_LIST *parsed_derived_select(SELECT_LEX *sel, int for_system_time, - LEX_CSTRING *alias); - TABLE_LIST *parsed_derived_unit(SELECT_LEX_UNIT *unit, - int for_system_time, - LEX_CSTRING *alias); + TABLE_LIST *parsed_derived_table(SELECT_LEX_UNIT *unit, + int for_system_time, + LEX_CSTRING *alias); bool parsed_create_view(SELECT_LEX_UNIT *unit, int check); bool select_finalize(st_select_lex_unit *expr); bool select_finalize(st_select_lex_unit *expr, Lex_select_lock l); diff --git a/sql/sql_table.cc b/sql/sql_table.cc index cf96bfa..ec9ec17 100644 --- a/sql/sql_table.cc +++ b/sql/sql_table.cc @@ -11190,7 +11190,7 @@ bool Sql_cmd_create_table_like::execute(THD *thd) } #endif - if (select_lex->item_list.elements) // With select + if (select_lex->item_list.elements || select_lex->tvc) // With select or TVC { select_result *result; diff --git a/sql/sql_tvc.cc b/sql/sql_tvc.cc index ef8e15d..4022cb8 100644 --- a/sql/sql_tvc.cc +++ b/sql/sql_tvc.cc @@ -599,8 +599,8 @@ static bool create_tvc_name(THD *thd, st_select_lex *parent_select, bool table_value_constr::to_be_wrapped_as_with_tail() { - return select_lex->master_unit()->first_select()->next_select() && - select_lex->order_list.elements && select_lex->explicit_limit; + return select_lex->master_unit()->first_select()->next_select() && + select_lex->order_list.elements && select_lex->explicit_limit; } diff --git a/sql/sql_union.cc b/sql/sql_union.cc index 41f4234..da25fa7 100644 --- a/sql/sql_union.cc +++ b/sql/sql_union.cc @@ -831,8 +831,8 @@ bool st_select_lex_unit::prepare(TABLE_LIST *derived_arg, bool is_union_select; bool have_except= FALSE, have_intersect= FALSE; bool instantiate_tmp_table= false; - bool single_tvc= !first_sl->next_select() && first_sl->tvc && - !fake_select_lex; + bool single_tvc= !first_sl->next_select() && first_sl->tvc; + bool single_tvc_wo_order= single_tvc && !first_sl->order_list.elements; DBUG_ENTER("st_select_lex_unit::prepare"); DBUG_ASSERT(thd == current_thd); @@ -924,8 +924,9 @@ bool st_select_lex_unit::prepare(TABLE_LIST *derived_arg, if (is_union_select || is_recursive) { - if ((is_unit_op() && !union_needs_tmp_table() && - !have_except && !have_intersect) || single_tvc) + if ((single_tvc_wo_order && !fake_select_lex) || + (is_unit_op() && !union_needs_tmp_table() && + !have_except && !have_intersect && !single_tvc)) { SELECT_LEX *last= first_select(); while (last->next_select()) @@ -940,7 +941,7 @@ bool st_select_lex_unit::prepare(TABLE_LIST *derived_arg, else { if (!is_recursive) - union_result= new (thd->mem_root) select_unit(thd); + union_result= new (thd->mem_root) select_unit(thd); else { with_element->rec_result= @@ -986,17 +987,40 @@ bool st_select_lex_unit::prepare(TABLE_LIST *derived_arg, if (sl->tvc && sl->order_list.elements && !sl->tvc->to_be_wrapped_as_with_tail()) { + SELECT_LEX_UNIT *unit= sl->master_unit(); if (thd->lex->context_analysis_only & CONTEXT_ANALYSIS_ONLY_VIEW) { - sl->master_unit()->fake_select_lex= 0; - sl->master_unit()->saved_fake_select_lex= 0; + unit->fake_select_lex= 0; + unit->saved_fake_select_lex= 0; } else { - sl->order_list.empty(); - sl->explicit_limit= 0; - sl->select_limit= 0; - sl->offset_limit= 0; + if (!unit->first_select()->next_select()) + { + if (!unit->fake_select_lex) + { + Query_arena *arena, backup_arena; + arena= thd->activate_stmt_arena_if_needed(&backup_arena); + bool rc= unit->add_fake_select_lex(thd); + if (arena) + thd->restore_active_arena(arena, &backup_arena); + if (rc) + goto err; + } + SELECT_LEX *fake= unit->fake_select_lex; + fake->order_list= sl->order_list; + fake->explicit_limit= sl->explicit_limit; + fake->select_limit= sl->select_limit; + fake->offset_limit= sl->offset_limit; + sl->order_list.empty(); + sl->explicit_limit= 0; + sl->select_limit= 0; + sl->offset_limit= 0; + if (describe) + fake->options|= SELECT_DESCRIBE; + } + else if (!sl->explicit_limit) + sl->order_list.empty(); } } @@ -1021,7 +1045,7 @@ bool st_select_lex_unit::prepare(TABLE_LIST *derived_arg, goto err; } else if (sl->tvc->prepare(thd, sl, tmp_result, this)) - goto err; + goto err; } else if (prepare_join(thd, sl, tmp_result, additional_options, is_union_select)) @@ -1875,6 +1899,7 @@ bool st_select_lex_unit::cleanup() DBUG_RETURN(FALSE); } } + columns_are_renamed= false; cleaned= 1; for (SELECT_LEX *sl= first_select(); sl; sl= sl->next_select()) diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy index 183a250..6f53937 100644 --- a/sql/sql_yacc.yy +++ b/sql/sql_yacc.yy @@ -817,10 +817,10 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); %parse-param { THD *thd } %lex-param { THD *thd } /* - Currently there are 48 shift/reduce conflicts. + Currently there are 39 shift/reduce conflicts. We should not introduce new conflicts any more. */ -%expect 48 +%expect 39 /* Comments for TOKENS. @@ -1638,6 +1638,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); %left MYSQL_CONCAT_SYM %left NEG '~' NOT2_SYM BINARY %left COLLATE_SYM +%left SUBQUERY_AS_EXPR /* Tokens that can change their meaning from identifier to something else @@ -1728,7 +1729,9 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); ALTER TABLE t1 ADD SYSTEM VERSIONING; */ %left PREC_BELOW_CONTRACTION_TOKEN2 -%left TEXT_STRING '(' VALUE_SYM VERSIONING_SYM +%left TEXT_STRING '(' ')' VALUE_SYM VERSIONING_SYM +%left EMPTY_FROM_CLAUSE +%right INTO %type <lex_str> DECIMAL_NUM FLOAT_NUM NUM LONG_NUM @@ -1991,16 +1994,18 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); query_specification table_value_constructor simple_table + query_simple query_primary - query_primary_parens + subquery select_into_query_specification - %type <select_lex_unit> - query_specification_start - query_expression_body query_expression - query_expression_unit + query_expression_no_with_clause + query_expression_body_ext + query_expression_body_ext_parens + query_expression_body + query_specification_start %type <boolfunc2creator> comp_op @@ -2025,7 +2030,9 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); %type <order_limit_lock> query_expression_tail + opt_query_expression_tail order_or_limit + order_limit_lock opt_order_limit_lock %type <select_order> opt_order_clause order_clause order_list @@ -2175,7 +2182,7 @@ END_OF_INPUT THEN_SYM WHEN_SYM DIV_SYM MOD_SYM OR2_SYM AND_AND_SYM DELETE_SYM MYSQL_CONCAT_SYM ORACLE_CONCAT_SYM -%type <with_clause> opt_with_clause with_clause +%type <with_clause> with_clause %type <lex_str_ptr> query_name @@ -5265,7 +5272,7 @@ create_select_query_expression: if (Lex->parsed_insert_select($1->first_select())) MYSQL_YYABORT; } - | LEFT_PAREN_WITH with_clause query_expression_body ')' + | LEFT_PAREN_WITH with_clause query_expression_no_with_clause ')' { SELECT_LEX *first_select= $3->first_select(); $3->set_with_clause($2); @@ -6773,13 +6780,7 @@ parse_vcol_expr: ; parenthesized_expr: - remember_tok_start - query_expression - { - if (!($$= Lex->create_item_query_expression(thd, $1, $2))) - MYSQL_YYABORT; - } - | expr + expr | expr ',' expr_list { $3->push_front($1, thd->mem_root); @@ -6798,6 +6799,16 @@ virtual_column_func: MYSQL_YYABORT; $$= v; } + | subquery + { + Item *item; + if (!(item= new (thd->mem_root) Item_singlerow_subselect(thd, $1))) + MYSQL_YYABORT; + Virtual_column_info *v= add_virtual_expression(thd, item); + if (unlikely(!v)) + MYSQL_YYABORT; + $$= v; + } ; expr_or_literal: column_default_non_parenthesized_expr | signed_literal ; @@ -9138,8 +9149,9 @@ opt_ignore_leaves: Select : retrieve data from table */ + select: - query_expression_body + query_expression_no_with_clause { if (Lex->push_select($1->fake_select_lex ? $1->fake_select_lex : @@ -9149,10 +9161,11 @@ select: opt_procedure_or_into { Lex->pop_select(); + $1->set_with_clause(NULL); if (Lex->select_finalize($1, $3)) MYSQL_YYABORT; } - | with_clause query_expression_body + | with_clause query_expression_no_with_clause { if (Lex->push_select($2->fake_select_lex ? $2->fake_select_lex : @@ -9169,7 +9182,6 @@ select: } ; - select_into: select_into_query_specification { @@ -9178,14 +9190,15 @@ select_into: } opt_order_limit_lock { - st_select_lex_unit *unit; - if (!(unit= Lex->parsed_body_select($1, $3))) + SELECT_LEX_UNIT *unit; + if (!(unit = Lex->create_unit($1))) MYSQL_YYABORT; + if ($3) + unit= Lex->add_tail_to_query_expression_body(unit, $3); if (Lex->select_finalize(unit)) MYSQL_YYABORT; - } - ; - + } + ; simple_table: query_specification { $$= $1; } @@ -9251,108 +9264,258 @@ select_into_query_specification: } ; -opt_from_clause: - /* Empty */ - | from_clause +/** + + The following grammar for query expressions conformant to + the latest SQL Standard is supported: + + <query expression> ::= + [ <with clause> ] <query expression body> + [ <order by clause> ] [ <result offset clause> ] [ <fetch first clause> ] + + <with clause> ::= + WITH [ RECURSIVE ] <with_list + + <with list> ::= + <with list element> [ { <comma> <with list element> }... ] + + <with list element> ::= + <query name> [ '(' <with column list> ')' ] + AS <table subquery> + + <with column list> ::= + <column name list> + + <query expression body> :: + <query term> + | <query expression body> UNION [ ALL | DISTINCT ] <query term> + | <query expression body> EXCEPT [ DISTINCT ] + + <query term> ::= + <query primary> + | <query term> INTERSECT [ DISTINCT ] <query primary> + + <query primary> ::= + <simple table> + | '(' <query expression body> + [ <order by clause> ] [ <result offset clause> ] [ <fetch first clause> ] + ')' + + <simple table> + <query specification> + | <table value constructor> + + <subquery> + '(' <query_expression> ')' + +*/ + +/* + query_expression produces the same expressions as + <query expression> +*/ + +query_expression: + query_expression_no_with_clause + { + $1->set_with_clause(NULL); + $$= $1; + } + | with_clause + query_expression_no_with_clause + { + $2->set_with_clause($1); + $1->attach_to($2->first_select()); + $$= $2; + } ; +/* + query_expression_no_with_clause produces the same expressions as + <query expression> without [ <with clause> ] +*/ -query_primary: - simple_table - { $$= $1; } - | query_primary_parens - { $$= $1; } +query_expression_no_with_clause: + query_expression_body_ext { $$= $1; } + | query_expression_body_ext_parens { $$= $1; } ; -query_primary_parens: - '(' query_expression_unit +/* + query_expression_body_ext produces the same expressions as + <query expression body> + [ <order by clause> ] [ <result offset clause> ] [ <fetch first clause> ] + | '('... <query expression body> + [ <order by clause> ] [ <result offset clause> ] [ <fetch first clause> ] + ')'... + Note: number of ')' must be equal to the number of '(' in the rule above +*/ + +query_expression_body_ext: + query_expression_body { - if (Lex->parsed_unit_in_brackets($2)) - MYSQL_YYABORT; + if ($1->first_select()->next_select()) + { + if (Lex->parsed_multi_operand_query_expression_body($1)) + MYSQL_YYABORT; + } } - query_expression_tail ')' + opt_query_expression_tail { - $$= Lex->parsed_unit_in_brackets_tail($2, $4); + if (!$3) + $$= $1; + else + $$= Lex->add_tail_to_query_expression_body($1, $3); } - | '(' query_primary + | query_expression_body_ext_parens { - Lex->push_select($2); + Lex->push_select(!$1->first_select()->next_select() ? + $1->first_select() : $1->fake_select_lex); } - query_expression_tail ')' + query_expression_tail { - if (!($$= Lex->parsed_select_in_brackets($2, $4))) - YYABORT; + if (!($$= Lex->add_tail_to_query_expression_body_ext_parens($1, $3))) + MYSQL_YYABORT; } ; -query_expression_unit: - query_primary - unit_type_decl - query_primary - { - if (!($$= Lex->parsed_select_expr_start($1, $3, $2.unit_type, - $2.distinct))) - YYABORT; - } - | query_expression_unit - unit_type_decl - query_primary +query_expression_body_ext_parens: + '(' query_expression_body_ext_parens ')' + { $$= $2; } + | '(' query_expression_body_ext ')' { - if (!($$= Lex->parsed_select_expr_cont($1, $3, $2.unit_type, - $2.distinct, FALSE))) - YYABORT; + SELECT_LEX *sel= $2->first_select()->next_select() ? + $2->fake_select_lex : $2->first_select(); + sel->braces= true; + $$= $2; } ; +/* + query_expression_body produces the same expressions as + <query expression body> +*/ + query_expression_body: - query_primary + query_simple { Lex->push_select($1); + if (!($$= Lex->create_unit($1))) + MYSQL_YYABORT; } - query_expression_tail + | query_expression_body + unit_type_decl { - if (!($$= Lex->parsed_body_select($1, $3))) - MYSQL_YYABORT; + if (!$1->first_select()->next_select()) + { + Lex->pop_select(); + } } - | query_expression_unit + query_primary { - if (Lex->parsed_body_unit($1)) + if (!($$= Lex->add_primary_to_query_expression_body($1, $4, + $2.unit_type, + $2.distinct, + FALSE))) MYSQL_YYABORT; } - query_expression_tail + | query_expression_body_ext_parens + unit_type_decl + query_primary { - if (!($$= Lex->parsed_body_unit_tail($1, $3))) + if (!($$= Lex->add_primary_to_query_expression_body_ext_parens( + $1, $3, + $2.unit_type, + $2.distinct))) MYSQL_YYABORT; } ; -query_expression: - opt_with_clause - query_expression_body - { - if ($1) - { - $2->set_with_clause($1); - $1->attach_to($2->first_select()); - } - $$= $2; - } +/* + query_primary produces the same expressions as + <query primary> +*/ + +query_primary: + query_simple + { $$= $1; } + | query_expression_body_ext_parens + { $$= $1->first_select(); } + ; + +/* + query_simple produces the same expressions as + <simple table> +*/ + +query_simple: + simple_table { $$= $1;} ; subselect: - remember_tok_start query_expression { - if (!($$= Lex->parsed_subselect($2, $1))) + if (!($$= Lex->parsed_subselect($1, NULL))) YYABORT; } ; - -/** - <table expression>, as in the SQL standard. +/* + subquery produces the same expressions as + <subquery> + + Consider the production rule of the SQL Standard + subquery: + '(' query_expression_no_with_clause ')' + + This rule is equivalent to the rule + subquery: + '(' query_expression_no_with_clause ')' + | '(' with_clause query_expression_no_with_clause ')' + that in its turn is equivalent to + subquery: + '(' query_expression_body_ext ')' + | '(' query_expression_body_ext_parens ')' + | '(' with_clause query_expression_no_with_clause ')' + + The latter can be re-written into + subquery: + '(' query_expression_body_ext_parens ')' + | '(' with_clause query_expression_no_with_clause ')' + + The last rule allows us to resolve properly the shift/reduce conflict + when subquery is used in expressions such as in the following queries + select (select * from t1 limit 1) + t2.a from t2 + select * from t1 where t1.a [not] in (select t2.a from t2) + + In the rule below %prec SUBQUERY_AS_EXPR forces the parser to perform a shift + operation rather then a reduce operation when ')' is encountered and can be + considered as the last symbol a query expression. */ +subquery: + query_expression_body_ext_parens %prec SUBQUERY_AS_EXPR + { + if (!$1->fake_select_lex) + $1->first_select()->braces= false; + else + $1->fake_select_lex->braces= false; + if (!($$= Lex->parsed_subselect($1, NULL))) + YYABORT; + } + | '(' with_clause query_expression_no_with_clause ')' + { + $3->set_with_clause($2); + $2->attach_to($3->first_select()); + if (!($$= Lex->parsed_subselect($3, NULL))) + YYABORT; + } + ; + +opt_from_clause: + /* empty */ %prec EMPTY_FROM_CLAUSE + | from_clause + ; + from_clause: FROM table_reference_list ; @@ -9516,6 +9679,7 @@ select_lock_type: } ; + opt_select_lock_type: /* empty */ { @@ -9527,6 +9691,7 @@ opt_select_lock_type: } ; + opt_lock_wait_timeout_new: /* empty */ { @@ -9819,15 +9984,15 @@ bool_pri: ; predicate: - bit_expr IN_SYM '(' subselect ')' + bit_expr IN_SYM subquery { - $$= new (thd->mem_root) Item_in_subselect(thd, $1, $4); + $$= new (thd->mem_root) Item_in_subselect(thd, $1, $3); if (unlikely($$ == NULL)) MYSQL_YYABORT; } - | bit_expr not IN_SYM '(' subselect ')' + | bit_expr not IN_SYM subquery { - Item *item= new (thd->mem_root) Item_in_subselect(thd, $1, $5); + Item *item= new (thd->mem_root) Item_in_subselect(thd, $1, $4); if (unlikely(item == NULL)) MYSQL_YYABORT; $$= negate_expression(thd, item); @@ -10346,6 +10511,12 @@ primary_expr: column_default_non_parenthesized_expr | explicit_cursor_attr | '(' parenthesized_expr ')' { $$= $2; } + | subquery + { + if (!($$= Lex->create_item_query_expression(thd, NULL, + $1->master_unit()))) + MYSQL_YYABORT; + } ; string_factor_expr: @@ -12148,35 +12319,12 @@ table_primary_ident: } ; - -/* - Represents a flattening of the following rules from the SQL:2003 - standard. This sub-rule corresponds to the sub-rule - <table primary> ::= ... | <derived table> [ AS ] <correlation name> - - <derived table> ::= <table subquery> - <table subquery> ::= <subquery> - <subquery> ::= <left paren> <query expression> <right paren> - <query expression> ::= [ <with clause> ] <query expression body> - - For the time being we use the non-standard rule - select_derived_union which is a compromise between the standard - and our parser. Possibly this rule could be replaced by our - query_expression_body. -*/ - table_primary_derived: - query_primary_parens opt_for_system_time_clause table_alias_clause + subquery + opt_for_system_time_clause table_alias_clause { - if (!($$= Lex->parsed_derived_select($1, $2, $3))) - YYABORT; - } - | '(' - query_expression - ')' opt_for_system_time_clause table_alias_clause - { - if (!($$= Lex->parsed_derived_unit($2, $4, $5))) - YYABORT; + if (!($$= Lex->parsed_derived_table($1->master_unit(), $2, $3))) + MYSQL_YYABORT; } ; @@ -12312,7 +12460,6 @@ table_alias: opt_table_alias_clause: /* empty */ { $$=0; } - | table_alias_clause { $$= $1; } ; @@ -12446,7 +12593,7 @@ opt_window_clause: {} | WINDOW_SYM window_def_list - {} + {} ; window_def_list: @@ -12774,10 +12921,8 @@ delete_limit_clause: | LIMIT limit_option ROWS_SYM EXAMINED_SYM { thd->parse_error(); MYSQL_YYABORT; } ; -opt_order_limit_lock: - /* empty */ - { $$= NULL; } - | order_or_limit +order_limit_lock: + order_or_limit { $$= $1; $$->lock.empty(); @@ -12797,32 +12942,45 @@ opt_order_limit_lock: $$->lock= $1; } ; + +opt_order_limit_lock: + /* empty */ + { + Lex->pop_select(); + $$= NULL; + } + | order_limit_lock { $$= $1; } + ; + query_expression_tail: + order_limit_lock + ; + +opt_query_expression_tail: opt_order_limit_lock ; opt_procedure_or_into: - /* empty */ - { - $$.empty(); - } + /* empty */ + { + $$.empty(); + } | procedure_clause opt_select_lock_type - { - $$= $2; - } + { + $$= $2; + } | into opt_select_lock_type - { - push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN, - ER_WARN_DEPRECATED_SYNTAX, - ER_THD(thd, ER_WARN_DEPRECATED_SYNTAX), - "<select expression> INTO <destination>;", - "'SELECT <select list> INTO <destination>" - " FROM...'"); - $$= $2; - } + { + push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN, + ER_WARN_DEPRECATED_SYNTAX, + ER_THD(thd, ER_WARN_DEPRECATED_SYNTAX), + "<select expression> INTO <destination>;", + "'SELECT <select list> INTO <destination>" + " FROM...'"); + $$= $2; + } ; - order_or_limit: order_clause opt_limit_clause { @@ -15208,16 +15366,6 @@ temporal_literal: } ; - -opt_with_clause: - /*empty */ { $$= 0; } - | with_clause - { - $$= $1; - } - ; - - with_clause: WITH opt_recursive { diff --git a/sql/sql_yacc_ora.yy b/sql/sql_yacc_ora.yy index f789cc0..cbbee0d 100644 --- a/sql/sql_yacc_ora.yy +++ b/sql/sql_yacc_ora.yy @@ -295,10 +295,10 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); %parse-param { THD *thd } %lex-param { THD *thd } /* - Currently there are 51 shift/reduce conflicts. + Currently there are 42 shift/reduce conflicts. We should not introduce new conflicts any more. */ -%expect 51 +%expect 42 /* Comments for TOKENS. @@ -1115,6 +1115,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); %left '^' %left MYSQL_CONCAT_SYM %left NEG '~' NOT2_SYM BINARY +%left SUBQUERY_AS_EXPR %left COLLATE_SYM /* @@ -1206,7 +1207,9 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); ALTER TABLE t1 ADD SYSTEM VERSIONING; */ %left PREC_BELOW_CONTRACTION_TOKEN2 -%left TEXT_STRING '(' VALUE_SYM VERSIONING_SYM +%left TEXT_STRING '(' ')' VALUE_SYM VERSIONING_SYM +%left EMPTY_FROM_CLAUSE +%right INTO %type <lex_str> DECIMAL_NUM FLOAT_NUM NUM LONG_NUM @@ -1478,16 +1481,18 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); query_specification table_value_constructor simple_table + query_simple query_primary - query_primary_parens + subquery select_into_query_specification - %type <select_lex_unit> - query_specification_start - query_expression_body query_expression - query_expression_unit + query_expression_no_with_clause + query_expression_body_ext + query_expression_body_ext_parens + query_expression_body + query_specification_start %type <boolfunc2creator> comp_op @@ -1512,7 +1517,9 @@ bool my_yyoverflow(short **a, YYSTYPE **b, size_t *yystacksize); %type <order_limit_lock> query_expression_tail + opt_query_expression_tail order_or_limit + order_limit_lock opt_order_limit_lock %type <select_order> opt_order_clause order_clause order_list @@ -1678,7 +1685,7 @@ END_OF_INPUT THEN_SYM WHEN_SYM DIV_SYM MOD_SYM OR2_SYM AND_AND_SYM DELETE_SYM MYSQL_CONCAT_SYM ORACLE_CONCAT_SYM -%type <with_clause> opt_with_clause with_clause +%type <with_clause> with_clause %type <lex_str_ptr> query_name @@ -5273,7 +5280,7 @@ create_select_query_expression: if (Lex->parsed_insert_select($1->first_select())) MYSQL_YYABORT; } - | LEFT_PAREN_WITH with_clause query_expression_body ')' + | LEFT_PAREN_WITH with_clause query_expression_no_with_clause ')' { SELECT_LEX *first_select= $3->first_select(); $3->set_with_clause($2); @@ -6782,13 +6789,7 @@ parse_vcol_expr: ; parenthesized_expr: - remember_tok_start - query_expression - { - if (!($$= Lex->create_item_query_expression(thd, $1, $2))) - MYSQL_YYABORT; - } - | expr + expr | expr ',' expr_list { $3->push_front($1, thd->mem_root); @@ -6807,6 +6808,16 @@ virtual_column_func: MYSQL_YYABORT; $$= v; } + | subquery + { + Item *item; + if (!(item= new (thd->mem_root) Item_singlerow_subselect(thd, $1))) + MYSQL_YYABORT; + Virtual_column_info *v= add_virtual_expression(thd, item); + if (unlikely(!v)) + MYSQL_YYABORT; + $$= v; + } ; expr_or_literal: column_default_non_parenthesized_expr | signed_literal ; @@ -9240,7 +9251,7 @@ opt_ignore_leaves: */ select: - query_expression_body + query_expression_no_with_clause { if (Lex->push_select($1->fake_select_lex ? $1->fake_select_lex : @@ -9250,10 +9261,11 @@ select: opt_procedure_or_into { Lex->pop_select(); + $1->set_with_clause(NULL); if (Lex->select_finalize($1, $3)) MYSQL_YYABORT; } - | with_clause query_expression_body + | with_clause query_expression_no_with_clause { if (Lex->push_select($2->fake_select_lex ? $2->fake_select_lex : @@ -9279,9 +9291,11 @@ select_into: } opt_order_limit_lock { - st_select_lex_unit *unit; - if (!(unit= Lex->parsed_body_select($1, $3))) + SELECT_LEX_UNIT *unit; + if (!(unit = Lex->create_unit($1))) MYSQL_YYABORT; + if ($3) + unit= Lex->add_tail_to_query_expression_body(unit, $3); if (Lex->select_finalize(unit)) MYSQL_YYABORT; } @@ -9352,108 +9366,258 @@ select_into_query_specification: } ; -opt_from_clause: - /* Empty */ - | from_clause +/** + + The following grammar for query expressions conformant to + the latest SQL Standard is supported: + + <query expression> ::= + [ <with clause> ] <query expression body> + [ <order by clause> ] [ <result offset clause> ] [ <fetch first clause> ] + + <with clause> ::= + WITH [ RECURSIVE ] <with_list + + <with list> ::= + <with list element> [ { <comma> <with list element> }... ] + + <with list element> ::= + <query name> [ '(' <with column list> ')' ] + AS <table subquery> + + <with column list> ::= + <column name list> + + <query expression body> :: + <query term> + | <query expression body> UNION [ ALL | DISTINCT ] <query term> + | <query expression body> EXCEPT [ DISTINCT ] + + <query term> ::= + <query primary> + | <query term> INTERSECT [ DISTINCT ] <query primary> + + <query primary> ::= + <simple table> + | '(' <query expression body> + [ <order by clause> ] [ <result offset clause> ] [ <fetch first clause> ] + ')' + + <simple table> + <query specification> + | <table value constructor> + + <subquery> + '(' <query_expression> ')' + +*/ + +/* + query_expression produces the same expressions as + <query expression> +*/ + +query_expression: + query_expression_no_with_clause + { + $1->set_with_clause(NULL); + $$= $1; + } + | with_clause + query_expression_no_with_clause + { + $2->set_with_clause($1); + $1->attach_to($2->first_select()); + $$= $2; + } ; +/* + query_expression_no_with_clause produces the same expressions as + <query expression> without [ <with clause> ] +*/ -query_primary: - simple_table - { $$= $1; } - | query_primary_parens - { $$= $1; } +query_expression_no_with_clause: + query_expression_body_ext { $$= $1; } + | query_expression_body_ext_parens { $$= $1; } ; -query_primary_parens: - '(' query_expression_unit +/* + query_expression_body_ext produces the same expressions as + <query expression body> + [ <order by clause> ] [ <result offset clause> ] [ <fetch first clause> ] + | '('... <query expression body> + [ <order by clause> ] [ <result offset clause> ] [ <fetch first clause> ] + ')'... + Note: number of ')' must be equal to the number of '(' in the rule above +*/ + +query_expression_body_ext: + query_expression_body { - if (Lex->parsed_unit_in_brackets($2)) - MYSQL_YYABORT; + if ($1->first_select()->next_select()) + { + if (Lex->parsed_multi_operand_query_expression_body($1)) + MYSQL_YYABORT; + } } - query_expression_tail ')' + opt_query_expression_tail { - $$= Lex->parsed_unit_in_brackets_tail($2, $4); + if (!$3) + $$= $1; + else + $$= Lex->add_tail_to_query_expression_body($1, $3); } - | '(' query_primary + | query_expression_body_ext_parens { - Lex->push_select($2); + Lex->push_select(!$1->first_select()->next_select() ? + $1->first_select() : $1->fake_select_lex); } - query_expression_tail ')' + query_expression_tail { - if (!($$= Lex->parsed_select_in_brackets($2, $4))) - YYABORT; + if (!($$= Lex->add_tail_to_query_expression_body_ext_parens($1, $3))) + MYSQL_YYABORT; } ; -query_expression_unit: - query_primary - unit_type_decl - query_primary - { - if (!($$= Lex->parsed_select_expr_start($1, $3, $2.unit_type, - $2.distinct))) - YYABORT; - } - | query_expression_unit - unit_type_decl - query_primary +query_expression_body_ext_parens: + '(' query_expression_body_ext_parens ')' + { $$= $2; } + | '(' query_expression_body_ext ')' { - if (!($$= Lex->parsed_select_expr_cont($1, $3, $2.unit_type, - $2.distinct, TRUE))) - YYABORT; + SELECT_LEX *sel= $2->first_select()->next_select() ? + $2->fake_select_lex : $2->first_select(); + sel->braces= true; + $$= $2; } ; +/* + query_expression_body produces the same expressions as + <query expression body> +*/ + query_expression_body: - query_primary + query_simple { Lex->push_select($1); + if (!($$= Lex->create_unit($1))) + MYSQL_YYABORT; } - query_expression_tail + | query_expression_body + unit_type_decl { - if (!($$= Lex->parsed_body_select($1, $3))) - MYSQL_YYABORT; + if (!$1->first_select()->next_select()) + { + Lex->pop_select(); + } } - | query_expression_unit + query_primary { - if (Lex->parsed_body_unit($1)) + if (!($$= Lex->add_primary_to_query_expression_body($1, $4, + $2.unit_type, + $2.distinct, + TRUE))) MYSQL_YYABORT; } - query_expression_tail + | query_expression_body_ext_parens + unit_type_decl + query_primary { - if (!($$= Lex->parsed_body_unit_tail($1, $3))) + if (!($$= Lex->add_primary_to_query_expression_body_ext_parens( + $1, $3, + $2.unit_type, + $2.distinct))) MYSQL_YYABORT; } ; -query_expression: - opt_with_clause - query_expression_body - { - if ($1) - { - $2->set_with_clause($1); - $1->attach_to($2->first_select()); - } - $$= $2; - } +/* + query_primary produces the same expressions as + <query primary> +*/ + +query_primary: + query_simple + { $$= $1; } + | query_expression_body_ext_parens + { $$= $1->first_select(); } + ; + +/* + query_simple produces the same expressions as + <simple table> +*/ + +query_simple: + simple_table { $$= $1;} ; subselect: - remember_tok_start query_expression { - if (!($$= Lex->parsed_subselect($2, $1))) + if (!($$= Lex->parsed_subselect($1, NULL))) YYABORT; } ; - -/** - <table expression>, as in the SQL standard. +/* + subquery produces the same expressions as + <subquery> + + Consider the production rule of the SQL Standard + subquery: + '(' query_expression_no_with_clause ')' + + This rule is equivalent to the rule + subquery: + '(' query_expression_no_with_clause ')' + | '(' with_clause query_expression_no_with_clause ')' + that in its turn is equivalent to + subquery: + '(' query_expression_body_ext ')' + | '(' query_expression_body_ext_parens ')' + | '(' with_clause query_expression_no_with_clause ')' + + The latter can be re-written into + subquery: + '(' query_expression_body_ext_parens ')' + | '(' with_clause query_expression_no_with_clause ')' + + The last rule allows us to resolve properly the shift/reduce conflict + when subquery is used in expressions such as in the following queries + select (select * from t1 limit 1) + t2.a from t2 + select * from t1 where t1.a [not] in (select t2.a from t2) + + In the rule below %prec SUBQUERY_AS_EXPR forces the parser to perform a shift + operation rather then a reduce operation when ')' is encountered and can be + considered as the last symbol a query expression. */ +subquery: + query_expression_body_ext_parens %prec SUBQUERY_AS_EXPR + { + if (!$1->fake_select_lex) + $1->first_select()->braces= false; + else + $1->fake_select_lex->braces= false; + if (!($$= Lex->parsed_subselect($1, NULL))) + YYABORT; + } + | '(' with_clause query_expression_no_with_clause ')' + { + $3->set_with_clause($2); + $2->attach_to($3->first_select()); + if (!($$= Lex->parsed_subselect($3, NULL))) + YYABORT; + } + ; + +opt_from_clause: + /* empty */ %prec EMPTY_FROM_CLAUSE + | from_clause + ; + from_clause: FROM table_reference_list ; @@ -9929,15 +10093,15 @@ bool_pri: ; predicate: - bit_expr IN_SYM '(' subselect ')' + bit_expr IN_SYM subquery { - $$= new (thd->mem_root) Item_in_subselect(thd, $1, $4); + $$= new (thd->mem_root) Item_in_subselect(thd, $1, $3); if (unlikely($$ == NULL)) MYSQL_YYABORT; } - | bit_expr not IN_SYM '(' subselect ')' + | bit_expr not IN_SYM subquery { - Item *item= new (thd->mem_root) Item_in_subselect(thd, $1, $5); + Item *item= new (thd->mem_root) Item_in_subselect(thd, $1, $4); if (unlikely(item == NULL)) MYSQL_YYABORT; $$= negate_expression(thd, item); @@ -10456,6 +10620,12 @@ primary_expr: column_default_non_parenthesized_expr | explicit_cursor_attr | '(' parenthesized_expr ')' { $$= $2; } + | subquery + { + if (!($$= Lex->create_item_query_expression(thd, NULL, + $1->master_unit()))) + MYSQL_YYABORT; + } ; string_factor_expr: @@ -12258,37 +12428,15 @@ table_primary_ident: } ; - -/* - Represents a flattening of the following rules from the SQL:2003 - standard. This sub-rule corresponds to the sub-rule - <table primary> ::= ... | <derived table> [ AS ] <correlation name> - - <derived table> ::= <table subquery> - <table subquery> ::= <subquery> - <subquery> ::= <left paren> <query expression> <right paren> - <query expression> ::= [ <with clause> ] <query expression body> - - For the time being we use the non-standard rule - select_derived_union which is a compromise between the standard - and our parser. Possibly this rule could be replaced by our - query_expression_body. -*/ - table_primary_derived: - query_primary_parens opt_for_system_time_clause table_alias_clause - { - if (!($$= Lex->parsed_derived_select($1, $2, $3))) - YYABORT; - } - | '(' - query_expression - ')' opt_for_system_time_clause table_alias_clause + subquery + opt_for_system_time_clause table_alias_clause { - if (!($$= Lex->parsed_derived_unit($2, $4, $5))) - YYABORT; + if (!($$= Lex->parsed_derived_table($1->master_unit(), $2, $3))) + MYSQL_YYABORT; } ; + ; opt_outer: /* empty */ {} @@ -12422,7 +12570,6 @@ table_alias: opt_table_alias_clause: /* empty */ { $$=0; } - | table_alias_clause { $$= $1; } ; @@ -12884,10 +13031,8 @@ delete_limit_clause: | LIMIT limit_option ROWS_SYM EXAMINED_SYM { thd->parse_error(); MYSQL_YYABORT; } ; -opt_order_limit_lock: - /* empty */ - { $$= NULL; } - | order_or_limit +order_limit_lock: + order_or_limit { $$= $1; $$->lock.empty(); @@ -12907,29 +13052,42 @@ opt_order_limit_lock: $$->lock= $1; } ; +opt_order_limit_lock: + /* empty */ + { + Lex->pop_select(); + $$= NULL; + } + | order_limit_lock { $$= $1; } + ; + query_expression_tail: + order_limit_lock + ; + +opt_query_expression_tail: opt_order_limit_lock ; opt_procedure_or_into: /* empty */ - { - $$.empty(); - } + { + $$.empty(); + } | procedure_clause opt_select_lock_type - { - $$= $2; - } + { + $$= $2; + } | into opt_select_lock_type - { - push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN, - ER_WARN_DEPRECATED_SYNTAX, - ER_THD(thd, ER_WARN_DEPRECATED_SYNTAX), - "<select expression> INTO <destination>;", - "'SELECT <select list> INTO <destination>" - " FROM...'"); - $$= $2; - } + { + push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN, + ER_WARN_DEPRECATED_SYNTAX, + ER_THD(thd, ER_WARN_DEPRECATED_SYNTAX), + "<select expression> INTO <destination>;", + "'SELECT <select list> INTO <destination>" + " FROM...'"); + $$= $2; + } ; @@ -15340,16 +15498,6 @@ temporal_literal: } ; - -opt_with_clause: - /*empty */ { $$= 0; } - | with_clause - { - $$= $1; - } - ; - - with_clause: WITH opt_recursive {

1 0

[Commits] c2789fdd09f: Issue #790, MyRocks/MRR: make ref(const) access switch to MRR
by psergey 14 Sep '19

14 Sep '19

revision-id: c2789fdd09f84fbf4321c5bde74851e5b58d01f7 (fb-prod201903-162-gc2789fdd09f) parent(s): 269ee6f6076173a579e721d35b3834d8433271c3 author: Sergei Petrunia committer: Sergei Petrunia timestamp: 2019-09-14 22:30:06 +0300 message: Issue #790, MyRocks/MRR: make ref(const) access switch to MRR Followup patch: update test results: - index_merge_innodb uses a table that's large enough so that the choice to use MRR is cost-based - Other tests set mrr=on,mrr_cost_based=off, which forces MRR to be used. --- mysql-test/r/index_merge_innodb.result | 2 +- .../r/innodb_explain_json_non_select_all.result | 18 ++++------- mysql-test/r/innodb_explain_non_select_all.result | 4 +-- mysql-test/r/join_cache_bka.result | 6 ++-- mysql-test/r/join_cache_bka_nixbnl.result | 6 ++-- mysql-test/r/join_cache_bnl.result | 6 ++-- mysql-test/r/join_cache_nojb.result | 6 ++-- mysql-test/r/join_nested_bka.result | 2 +- mysql-test/r/join_nested_bka_nixbnl.result | 2 +- .../r/myisam_explain_json_non_select_all.result | 18 ++++------- mysql-test/r/myisam_explain_non_select_all.result | 4 +-- mysql-test/r/myisam_mrr.result | 2 +- mysql-test/r/myisam_mrr_all.result | 2 +- mysql-test/r/myisam_mrr_icp.result | 2 +- mysql-test/r/order_by_all.result | 8 ++--- mysql-test/r/order_by_icp_mrr.result | 8 ++--- mysql-test/r/range_all.result | 28 ++++++++--------- mysql-test/r/range_icp_mrr.result | 28 ++++++++--------- mysql-test/r/range_mrr.result | 28 ++++++++--------- mysql-test/r/select_all.result | 26 ++++++++-------- mysql-test/r/select_all_bka.result | 26 ++++++++-------- mysql-test/r/select_all_bka_nixbnl.result | 26 ++++++++-------- mysql-test/r/select_icp_mrr.result | 26 ++++++++-------- mysql-test/r/select_icp_mrr_bka.result | 26 ++++++++-------- mysql-test/r/select_icp_mrr_bka_nixbnl.result | 26 ++++++++-------- mysql-test/r/subquery_all.result | 8 ++--- mysql-test/r/subquery_all_bka.result | 8 ++--- mysql-test/r/subquery_all_bka_nixbnl.result | 8 ++--- mysql-test/r/subquery_nomat_nosj.result | 8 ++--- mysql-test/r/subquery_nomat_nosj_bka.result | 8 ++--- mysql-test/r/subquery_nomat_nosj_bka_nixbnl.result | 8 ++--- mysql-test/r/subquery_sj_all.result | 35 ++++++++++------------ mysql-test/r/subquery_sj_all_bka.result | 35 ++++++++++------------ mysql-test/r/subquery_sj_all_bka_nixbnl.result | 35 ++++++++++------------ 34 files changed, 234 insertions(+), 255 deletions(-) diff --git a/mysql-test/r/index_merge_innodb.result b/mysql-test/r/index_merge_innodb.result index 98d69097140..f55b26ab31c 100644 --- a/mysql-test/r/index_merge_innodb.result +++ b/mysql-test/r/index_merge_innodb.result @@ -746,7 +746,7 @@ key1 key2 key3 key4 filler1 -1 -1 200 -1 key3 explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a sta_swt21a 12 const,const,const 999 NULL +1 SIMPLE t1 range sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a sta_swt21a 12 NULL 999 Using index condition; Using MRR explain select * from t1 where st_b=1 and swt1b=1 and swt2b=1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref stb_swt1a_2b,stb_swt1b,st_b stb_swt1a_2b 8 const,const 3999 Using where diff --git a/mysql-test/r/innodb_explain_json_non_select_all.result b/mysql-test/r/innodb_explain_json_non_select_all.result index 6729e40dd9a..800f6763b78 100644 --- a/mysql-test/r/innodb_explain_json_non_select_all.result +++ b/mysql-test/r/innodb_explain_json_non_select_all.result @@ -4699,7 +4699,7 @@ FLUSH STATUS; FLUSH TABLES; EXPLAIN EXTENDED SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref c1_idx c1_idx 2 const 2 100.00 Using where +1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using index condition Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`c1_idx` AS `c1_idx`,`test`.`t1`.`c2` AS `c2` from `test`.`t1` where (`test`.`t1`.`c1_idx` = 'y') order by `test`.`t1`.`pk` desc limit 2 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution @@ -4713,7 +4713,7 @@ EXPLAIN "using_filesort": false, "table": { "table_name": "t1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "c1_idx" ] /* possible_keys */, @@ -4722,12 +4722,9 @@ EXPLAIN "c1_idx" ] /* used_key_parts */, "key_length": "2", - "ref": [ - "const" - ] /* ref */, "rows": 2, "filtered": 100, - "attached_condition": "((`test`.`t1`.`c1_idx` <=> 'y') and (`test`.`t1`.`c1_idx` = 'y'))" + "index_condition": "(`test`.`t1`.`c1_idx` = 'y')" } /* table */ } /* ordering_operation */ } /* query_block */ @@ -4792,7 +4789,7 @@ FLUSH STATUS; FLUSH TABLES; EXPLAIN EXTENDED SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref c1_idx c1_idx 2 const 2 100.00 Using where +1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using index condition Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`c1_idx` AS `c1_idx`,`test`.`t1`.`c2` AS `c2` from `test`.`t1` where (`test`.`t1`.`c1_idx` = 'y') order by `test`.`t1`.`pk` desc limit 2 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution @@ -4806,7 +4803,7 @@ EXPLAIN "using_filesort": false, "table": { "table_name": "t1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "c1_idx" ] /* possible_keys */, @@ -4815,12 +4812,9 @@ EXPLAIN "c1_idx" ] /* used_key_parts */, "key_length": "2", - "ref": [ - "const" - ] /* ref */, "rows": 2, "filtered": 100, - "attached_condition": "((`test`.`t1`.`c1_idx` <=> 'y') and (`test`.`t1`.`c1_idx` = 'y'))" + "index_condition": "(`test`.`t1`.`c1_idx` = 'y')" } /* table */ } /* ordering_operation */ } /* query_block */ diff --git a/mysql-test/r/innodb_explain_non_select_all.result b/mysql-test/r/innodb_explain_non_select_all.result index 9b80213dd12..945a9d3fde3 100644 --- a/mysql-test/r/innodb_explain_non_select_all.result +++ b/mysql-test/r/innodb_explain_non_select_all.result @@ -2211,7 +2211,7 @@ FLUSH STATUS; FLUSH TABLES; EXPLAIN EXTENDED SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref c1_idx c1_idx 2 const 2 100.00 Using where +1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using index condition Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`c1_idx` AS `c1_idx`,`test`.`t1`.`c2` AS `c2` from `test`.`t1` where (`test`.`t1`.`c1_idx` = 'y') order by `test`.`t1`.`pk` desc limit 2 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution @@ -2245,7 +2245,7 @@ FLUSH STATUS; FLUSH TABLES; EXPLAIN EXTENDED SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref c1_idx c1_idx 2 const 2 100.00 Using where +1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using index condition Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`c1_idx` AS `c1_idx`,`test`.`t1`.`c2` AS `c2` from `test`.`t1` where (`test`.`t1`.`c1_idx` = 'y') order by `test`.`t1`.`pk` desc limit 2 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution diff --git a/mysql-test/r/join_cache_bka.result b/mysql-test/r/join_cache_bka.result index 89177082752..cab5504b367 100644 --- a/mysql-test/r/join_cache_bka.result +++ b/mysql-test/r/join_cache_bka.result @@ -1302,8 +1302,8 @@ t6.formattypeid IN (2) AND (t3.formatid IN (31, 8, 76)) AND t1.metaid = t2.metaid AND t1.affiliateid = '2'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t6 system PRIMARY NULL NULL NULL 1 NULL -1 SIMPLE t1 ref t1_affiliateid,t1_metaid t1_affiliateid 4 const 1 NULL -1 SIMPLE t4 ref PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 const 1 Using index condition; Using where; Using join buffer (Batched Key Access) +1 SIMPLE t1 range t1_affiliateid,t1_metaid t1_affiliateid 4 NULL 1 Using index condition; Using MRR +1 SIMPLE t4 range PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 NULL 1 Using index condition; Using where; Using MRR; Using join buffer (Block Nested Loop) 1 SIMPLE t5 eq_ref PRIMARY,t5_formattypeid PRIMARY 4 test.t4.formatclassid 1 Using where; Using join buffer (Batched Key Access) 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using join buffer (Batched Key Access) 1 SIMPLE t7 ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using index @@ -2216,7 +2216,7 @@ ORDER BY t1.col_int_key, t1.col_datetime LIMIT 2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL col_int_key NULL NULL NULL 3 Using temporary; Using filesort -1 SIMPLE t2 ref col_int_key col_int_key 5 const 1 Using where; Using join buffer (Batched Key Access) +1 SIMPLE t2 range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR; Using join buffer (Block Nested Loop) SELECT t1.col_int_key, t1.col_datetime FROM t1,t2 WHERE t2.col_int_key = 1 AND t2.col_int >= 3 diff --git a/mysql-test/r/join_cache_bka_nixbnl.result b/mysql-test/r/join_cache_bka_nixbnl.result index 3d89af07b57..b27e9675112 100644 --- a/mysql-test/r/join_cache_bka_nixbnl.result +++ b/mysql-test/r/join_cache_bka_nixbnl.result @@ -1302,8 +1302,8 @@ t6.formattypeid IN (2) AND (t3.formatid IN (31, 8, 76)) AND t1.metaid = t2.metaid AND t1.affiliateid = '2'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t6 system PRIMARY NULL NULL NULL 1 NULL -1 SIMPLE t1 ref t1_affiliateid,t1_metaid t1_affiliateid 4 const 1 NULL -1 SIMPLE t4 ref PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 const 1 Using index condition; Using where; Using join buffer (Batched Key Access) +1 SIMPLE t1 range t1_affiliateid,t1_metaid t1_affiliateid 4 NULL 1 Using index condition; Using MRR +1 SIMPLE t4 range PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 NULL 1 Using index condition; Using where; Using MRR 1 SIMPLE t5 eq_ref PRIMARY,t5_formattypeid PRIMARY 4 test.t4.formatclassid 1 Using where; Using join buffer (Batched Key Access) 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using join buffer (Batched Key Access) 1 SIMPLE t7 ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using index @@ -2216,7 +2216,7 @@ ORDER BY t1.col_int_key, t1.col_datetime LIMIT 2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL col_int_key NULL NULL NULL 3 Using temporary; Using filesort -1 SIMPLE t2 ref col_int_key col_int_key 5 const 1 Using where; Using join buffer (Batched Key Access) +1 SIMPLE t2 range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR SELECT t1.col_int_key, t1.col_datetime FROM t1,t2 WHERE t2.col_int_key = 1 AND t2.col_int >= 3 diff --git a/mysql-test/r/join_cache_bnl.result b/mysql-test/r/join_cache_bnl.result index 1ebf6f8bd71..853a2f8a225 100644 --- a/mysql-test/r/join_cache_bnl.result +++ b/mysql-test/r/join_cache_bnl.result @@ -1303,8 +1303,8 @@ t6.formattypeid IN (2) AND (t3.formatid IN (31, 8, 76)) AND t1.metaid = t2.metaid AND t1.affiliateid = '2'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t6 system PRIMARY NULL NULL NULL 1 NULL -1 SIMPLE t1 ref t1_affiliateid,t1_metaid t1_affiliateid 4 const 1 NULL -1 SIMPLE t4 ref PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 const 1 Using index condition; Using where +1 SIMPLE t1 range t1_affiliateid,t1_metaid t1_affiliateid 4 NULL 1 Using index condition; Using MRR +1 SIMPLE t4 range PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 NULL 1 Using index condition; Using where; Using MRR; Using join buffer (Block Nested Loop) 1 SIMPLE t5 eq_ref PRIMARY,t5_formattypeid PRIMARY 4 test.t4.formatclassid 1 Using where 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.metaid 1 NULL 1 SIMPLE t7 ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using index @@ -2217,7 +2217,7 @@ ORDER BY t1.col_int_key, t1.col_datetime LIMIT 2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL col_int_key NULL NULL NULL 3 Using temporary; Using filesort -1 SIMPLE t2 ref col_int_key col_int_key 5 const 1 Using where +1 SIMPLE t2 range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR; Using join buffer (Block Nested Loop) SELECT t1.col_int_key, t1.col_datetime FROM t1,t2 WHERE t2.col_int_key = 1 AND t2.col_int >= 3 diff --git a/mysql-test/r/join_cache_nojb.result b/mysql-test/r/join_cache_nojb.result index e7982de302c..a045c4d890a 100644 --- a/mysql-test/r/join_cache_nojb.result +++ b/mysql-test/r/join_cache_nojb.result @@ -1303,8 +1303,8 @@ t6.formattypeid IN (2) AND (t3.formatid IN (31, 8, 76)) AND t1.metaid = t2.metaid AND t1.affiliateid = '2'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t6 system PRIMARY NULL NULL NULL 1 NULL -1 SIMPLE t1 ref t1_affiliateid,t1_metaid t1_affiliateid 4 const 1 NULL -1 SIMPLE t4 ref PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 const 1 Using index condition; Using where +1 SIMPLE t1 range t1_affiliateid,t1_metaid t1_affiliateid 4 NULL 1 Using index condition; Using MRR +1 SIMPLE t4 range PRIMARY,t4_formatclassid,t4_formats_idx t4_formats_idx 1 NULL 1 Using index condition; Using where; Using MRR 1 SIMPLE t5 eq_ref PRIMARY,t5_formattypeid PRIMARY 4 test.t4.formatclassid 1 Using where 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.metaid 1 NULL 1 SIMPLE t7 ref PRIMARY PRIMARY 4 test.t1.metaid 1 Using index @@ -2217,7 +2217,7 @@ ORDER BY t1.col_int_key, t1.col_datetime LIMIT 2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL col_int_key NULL NULL NULL 3 Using temporary; Using filesort -1 SIMPLE t2 ref col_int_key col_int_key 5 const 1 Using where +1 SIMPLE t2 range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR SELECT t1.col_int_key, t1.col_datetime FROM t1,t2 WHERE t2.col_int_key = 1 AND t2.col_int >= 3 diff --git a/mysql-test/r/join_nested_bka.result b/mysql-test/r/join_nested_bka.result index bf1bc232c04..5bdffe0a7c7 100644 --- a/mysql-test/r/join_nested_bka.result +++ b/mysql-test/r/join_nested_bka.result @@ -1055,7 +1055,7 @@ t0.b=t1.b AND (t8.b=t9.b OR t8.c IS NULL) AND (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t0 ref idx_a idx_a 5 const 1 100.00 Using where +1 SIMPLE t0 range idx_a idx_a 5 NULL 1 100.00 Using index condition; Using where; Using MRR 1 SIMPLE t1 ref idx_b idx_b 5 test.t0.b 2 100.00 Using join buffer (Batched Key Access) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (Block Nested Loop) 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (Block Nested Loop) diff --git a/mysql-test/r/join_nested_bka_nixbnl.result b/mysql-test/r/join_nested_bka_nixbnl.result index 895435deb26..f7827381b2f 100644 --- a/mysql-test/r/join_nested_bka_nixbnl.result +++ b/mysql-test/r/join_nested_bka_nixbnl.result @@ -1055,7 +1055,7 @@ t0.b=t1.b AND (t8.b=t9.b OR t8.c IS NULL) AND (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t0 ref idx_a idx_a 5 const 1 100.00 Using where +1 SIMPLE t0 range idx_a idx_a 5 NULL 1 100.00 Using index condition; Using where; Using MRR 1 SIMPLE t1 ref idx_b idx_b 5 test.t0.b 2 100.00 Using join buffer (Batched Key Access) 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where diff --git a/mysql-test/r/myisam_explain_json_non_select_all.result b/mysql-test/r/myisam_explain_json_non_select_all.result index 9b72fcea450..e0443347640 100644 --- a/mysql-test/r/myisam_explain_json_non_select_all.result +++ b/mysql-test/r/myisam_explain_json_non_select_all.result @@ -4556,7 +4556,7 @@ FLUSH STATUS; FLUSH TABLES; EXPLAIN EXTENDED SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref c1_idx c1_idx 2 const 2 100.00 Using index condition; Using where; Using filesort +1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using index condition; Using MRR; Using filesort Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`c1_idx` AS `c1_idx`,`test`.`t1`.`c2` AS `c2` from `test`.`t1` where (`test`.`t1`.`c1_idx` = 'y') order by `test`.`t1`.`pk` desc limit 2 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution @@ -4570,7 +4570,7 @@ EXPLAIN "using_filesort": true, "table": { "table_name": "t1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "c1_idx" ] /* possible_keys */, @@ -4579,13 +4579,10 @@ EXPLAIN "c1_idx" ] /* used_key_parts */, "key_length": "2", - "ref": [ - "const" - ] /* ref */, "rows": 2, "filtered": 100, "index_condition": "(`test`.`t1`.`c1_idx` = 'y')", - "attached_condition": "((`test`.`t1`.`c1_idx` <=> 'y'))" + "using_MRR": true } /* table */ } /* ordering_operation */ } /* query_block */ @@ -4655,7 +4652,7 @@ FLUSH STATUS; FLUSH TABLES; EXPLAIN EXTENDED SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref c1_idx c1_idx 2 const 2 100.00 Using index condition; Using where; Using filesort +1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using index condition; Using MRR; Using filesort Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`c1_idx` AS `c1_idx`,`test`.`t1`.`c2` AS `c2` from `test`.`t1` where (`test`.`t1`.`c1_idx` = 'y') order by `test`.`t1`.`pk` desc limit 2 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution @@ -4669,7 +4666,7 @@ EXPLAIN "using_filesort": true, "table": { "table_name": "t1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "c1_idx" ] /* possible_keys */, @@ -4678,13 +4675,10 @@ EXPLAIN "c1_idx" ] /* used_key_parts */, "key_length": "2", - "ref": [ - "const" - ] /* ref */, "rows": 2, "filtered": 100, "index_condition": "(`test`.`t1`.`c1_idx` = 'y')", - "attached_condition": "((`test`.`t1`.`c1_idx` <=> 'y'))" + "using_MRR": true } /* table */ } /* ordering_operation */ } /* query_block */ diff --git a/mysql-test/r/myisam_explain_non_select_all.result b/mysql-test/r/myisam_explain_non_select_all.result index 330713ddef3..ba36f354ee2 100644 --- a/mysql-test/r/myisam_explain_non_select_all.result +++ b/mysql-test/r/myisam_explain_non_select_all.result @@ -2085,7 +2085,7 @@ FLUSH STATUS; FLUSH TABLES; EXPLAIN EXTENDED SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref c1_idx c1_idx 2 const 2 100.00 Using index condition; Using where; Using filesort +1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using index condition; Using MRR; Using filesort Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`c1_idx` AS `c1_idx`,`test`.`t1`.`c2` AS `c2` from `test`.`t1` where (`test`.`t1`.`c1_idx` = 'y') order by `test`.`t1`.`pk` desc limit 2 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution @@ -2124,7 +2124,7 @@ FLUSH STATUS; FLUSH TABLES; EXPLAIN EXTENDED SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref c1_idx c1_idx 2 const 2 100.00 Using index condition; Using where; Using filesort +1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using index condition; Using MRR; Using filesort Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`c1_idx` AS `c1_idx`,`test`.`t1`.`c2` AS `c2` from `test`.`t1` where (`test`.`t1`.`c1_idx` = 'y') order by `test`.`t1`.`pk` desc limit 2 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution diff --git a/mysql-test/r/myisam_mrr.result b/mysql-test/r/myisam_mrr.result index bf0485383b8..a2ea0318800 100644 --- a/mysql-test/r/myisam_mrr.result +++ b/mysql-test/r/myisam_mrr.result @@ -347,7 +347,7 @@ GROUP BY t2.pk ); 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 -2 SUBQUERY t2 ref int_key int_key 5 const 1 100.00 Using where +2 SUBQUERY t2 range int_key int_key 5 NULL 1 100.00 Using where; Using MRR Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`pk`) AS `MIN(t1.pk)` from `test`.`t1` where 0 DROP TABLE t1, t2; diff --git a/mysql-test/r/myisam_mrr_all.result b/mysql-test/r/myisam_mrr_all.result index 8eda02da1d1..37e1e3d573a 100644 --- a/mysql-test/r/myisam_mrr_all.result +++ b/mysql-test/r/myisam_mrr_all.result @@ -347,7 +347,7 @@ GROUP BY t2.pk ); 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 -2 SUBQUERY t2 ref int_key int_key 5 const 1 100.00 Using index condition +2 SUBQUERY t2 range int_key int_key 5 NULL 1 100.00 Using index condition; Using MRR Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`pk`) AS `MIN(t1.pk)` from `test`.`t1` where 0 DROP TABLE t1, t2; diff --git a/mysql-test/r/myisam_mrr_icp.result b/mysql-test/r/myisam_mrr_icp.result index de98834f39c..fe637227b4a 100644 --- a/mysql-test/r/myisam_mrr_icp.result +++ b/mysql-test/r/myisam_mrr_icp.result @@ -347,7 +347,7 @@ GROUP BY t2.pk ); 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 -2 SUBQUERY t2 ref int_key int_key 5 const 1 100.00 Using index condition +2 SUBQUERY t2 range int_key int_key 5 NULL 1 100.00 Using index condition; Using MRR Warnings: Note 1003 /* select#1 */ select min(`test`.`t1`.`pk`) AS `MIN(t1.pk)` from `test`.`t1` where 0 DROP TABLE t1, t2; diff --git a/mysql-test/r/order_by_all.result b/mysql-test/r/order_by_all.result index 3389f44979c..c50053bab4f 100644 --- a/mysql-test/r/order_by_all.result +++ b/mysql-test/r/order_by_all.result @@ -602,7 +602,7 @@ KEY StringField (FieldKey,StringVal(32)) INSERT INTO t1 VALUES ('0',3,'0'),('0',2,'1'),('0',1,'2'),('1',2,'1'),('1',1,'3'), ('1',0,'2'),('2',3,'0'),('2',2,'1'),('2',1,'2'),('2',3,'0'),('2',2,'1'),('2',1,'2'),('3',2,'1'),('3',1,'2'),('3','3','3'); EXPLAIN SELECT * FROM t1 WHERE FieldKey = '1' ORDER BY LongVal; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref FieldKey,LongField,StringField LongField 38 const 3 Using where +1 SIMPLE t1 range FieldKey,LongField,StringField LongField 38 NULL 3 Using where SELECT * FROM t1 WHERE FieldKey = '1' ORDER BY LongVal; FieldKey LongVal StringVal 1 0 2 @@ -683,10 +683,10 @@ a b c d 1 1 92 -9 select * from t1 where a=1 and b in (1); a b c d +1 1 2 0 1 1 92 -9 1 1 52 -5 1 1 12 -1 -1 1 2 0 drop table t1, t2; create table t1 (col1 int, col int); create table t2 (col2 int, col int); @@ -1102,7 +1102,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index k2 k3 5 NULL 111 Using where EXPLAIN SELECT id,c3 FROM t2 WHERE c2=11 ORDER BY c3 LIMIT 4000; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref k2 k2 5 const 7341 Using where; Using filesort +1 SIMPLE t2 range k2 k2 5 NULL 7341 Using index condition; Using MRR; Using filesort EXPLAIN SELECT id,c3 FROM t2 WHERE c2 BETWEEN 10 AND 12 ORDER BY c3 LIMIT 20; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index k2 k3 5 NULL 73 Using where @@ -1487,7 +1487,7 @@ SELECT d FROM t1, t2 WHERE t2.b=14 AND t2.a=t1.a AND 5.1<t2.c AND t1.b='DE' ORDER BY t2.c LIMIT 1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref a,b b 4 const 4 Using index condition; Using where; Using temporary; Using filesort +1 SIMPLE t1 range a,b b 4 NULL 4 Using index condition; Using where; Using MRR; Using temporary; Using filesort 1 SIMPLE t2 ref a,b,c a 40 test.t1.a,const 11 Using index condition SELECT d FROM t1, t2 WHERE t2.b=14 AND t2.a=t1.a AND 5.1<t2.c AND t1.b='DE' diff --git a/mysql-test/r/order_by_icp_mrr.result b/mysql-test/r/order_by_icp_mrr.result index de8c9858994..18595dfeb98 100644 --- a/mysql-test/r/order_by_icp_mrr.result +++ b/mysql-test/r/order_by_icp_mrr.result @@ -602,7 +602,7 @@ KEY StringField (FieldKey,StringVal(32)) INSERT INTO t1 VALUES ('0',3,'0'),('0',2,'1'),('0',1,'2'),('1',2,'1'),('1',1,'3'), ('1',0,'2'),('2',3,'0'),('2',2,'1'),('2',1,'2'),('2',3,'0'),('2',2,'1'),('2',1,'2'),('3',2,'1'),('3',1,'2'),('3','3','3'); EXPLAIN SELECT * FROM t1 WHERE FieldKey = '1' ORDER BY LongVal; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref FieldKey,LongField,StringField LongField 38 const 3 Using where +1 SIMPLE t1 range FieldKey,LongField,StringField LongField 38 NULL 3 Using where SELECT * FROM t1 WHERE FieldKey = '1' ORDER BY LongVal; FieldKey LongVal StringVal 1 0 2 @@ -683,10 +683,10 @@ a b c d 1 1 92 -9 select * from t1 where a=1 and b in (1); a b c d +1 1 2 0 1 1 92 -9 1 1 52 -5 1 1 12 -1 -1 1 2 0 drop table t1, t2; create table t1 (col1 int, col int); create table t2 (col2 int, col int); @@ -1102,7 +1102,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index k2 k3 5 NULL 111 Using where EXPLAIN SELECT id,c3 FROM t2 WHERE c2=11 ORDER BY c3 LIMIT 4000; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref k2 k2 5 const 7341 Using where; Using filesort +1 SIMPLE t2 range k2 k2 5 NULL 7341 Using index condition; Using MRR; Using filesort EXPLAIN SELECT id,c3 FROM t2 WHERE c2 BETWEEN 10 AND 12 ORDER BY c3 LIMIT 20; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index k2 k3 5 NULL 73 Using where @@ -1487,7 +1487,7 @@ SELECT d FROM t1, t2 WHERE t2.b=14 AND t2.a=t1.a AND 5.1<t2.c AND t1.b='DE' ORDER BY t2.c LIMIT 1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref a,b b 4 const 4 Using index condition; Using where; Using temporary; Using filesort +1 SIMPLE t1 range a,b b 4 NULL 4 Using index condition; Using where; Using MRR; Using temporary; Using filesort 1 SIMPLE t2 ref a,b,c a 40 test.t1.a,const 11 Using index condition SELECT d FROM t1, t2 WHERE t2.b=14 AND t2.a=t1.a AND 5.1<t2.c AND t1.b='DE' diff --git a/mysql-test/r/range_all.result b/mysql-test/r/range_all.result index 629fe9b1ec4..3032dd19893 100644 --- a/mysql-test/r/range_all.result +++ b/mysql-test/r/range_all.result @@ -224,27 +224,27 @@ Table Op Msg_type Msg_text test.t1 analyze status OK explain select * from t1, t1 t2 where t1.y = 8 and t2.x between 7 and t1.y+0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 8 and t2.x >= 7 and t2.x <= t1.y+0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between t1.y-1 and t1.y+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 3 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= t1.y-1 and t2.x <= t1.y+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 3 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between 0 and t1.y; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= 0 and t2.x <= t1.y; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select count(*) from t1 where x in (1); id select_type table type possible_keys key key_len ref rows Extra @@ -326,8 +326,8 @@ KEY recount( owner, line ) INSERT into t1 (owner,id,columnid,line) values (11,15,15,1),(11,13,13,5); SELECT id, columnid, tableid, content, showid, line, ordinal FROM t1 WHERE owner=11 AND ((columnid IN ( 15, 13, 14 ) AND line IN ( 1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 31 )) OR (columnid IN ( 13, 14 ) AND line IN ( 15 ))) LIMIT 0 , 30; id columnid tableid content showid line ordinal -13 13 1 188 1 5 0 15 15 1 188 1 1 0 +13 13 1 188 1 5 0 drop table t1; create table t1 (id int(10) primary key); insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9); @@ -619,7 +619,7 @@ INSERT INTO t1 (a) VALUES ('111'),('222'),('222'),('222'),('222'),('444'),('aaa'),('AAA'),('bbb'); explain select * from t1 where a='aaa'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref a a 11 const 2 Using index condition +1 SIMPLE t1 range a a 11 NULL 2 Using index condition; Using MRR explain select * from t1 where a=binary 'aaa'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 11 NULL 2 Using index condition; Using MRR @@ -708,8 +708,8 @@ WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND v.oxrootid ='d8c4177d09f8b11f5.52725521' AND s.oxleft > v.oxleft AND s.oxleft < v.oxright; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE v ref OXLEFT,OXRIGHT,OXROOTID OXROOTID 34 const 5 Using index condition -1 SIMPLE s ref OXLEFT,OXROOTID OXROOTID 34 const 5 Using index condition; Using where +1 SIMPLE v range OXLEFT,OXRIGHT,OXROOTID OXROOTID 34 NULL 5 Using index condition; Using MRR +1 SIMPLE s range OXLEFT,OXROOTID OXROOTID 34 NULL 5 Using index condition; Using where; Using MRR; Using join buffer (Block Nested Loop) SELECT s.oxid FROM t1 v, t1 s WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND v.oxrootid ='d8c4177d09f8b11f5.52725521' AND @@ -1026,10 +1026,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 13 NULL # Using index condition; Using MRR explain select * from t2 where a between 'a' and 'a '; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref a a 13 const # Using index condition +1 SIMPLE t2 range a a 13 NULL # Using index condition; Using MRR explain select * from t2 where a = 'a' or a='a '; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref a a 13 const # Using index condition +1 SIMPLE t2 range a a 13 NULL # Using index condition; Using MRR update t1 set a='b' where a<>'a'; explain select * from t1 where a not between 'b' and 'b'; id select_type table type possible_keys key key_len ref rows Extra @@ -1115,7 +1115,7 @@ Table Op Msg_type Msg_text test.t1 analyze status OK EXPLAIN SELECT * FROM t1 WHERE item='A1' AND started<='2005-12-01 24:00:00'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref PRIMARY PRIMARY 20 const 2 Using index condition +1 SIMPLE t1 range PRIMARY PRIMARY 20 NULL 2 Using index condition; Using MRR Warnings: Warning 1292 Incorrect datetime value: '2005-12-01 24:00:00' for column 'started' at row 1 Warning 1292 Incorrect datetime value: '2005-12-01 24:00:00' for column 'started' at row 1 @@ -1983,7 +1983,7 @@ INSERT INTO t2 VALUES (1, 1, 2); # range estimates k is selected. EXPLAIN SELECT * FROM t2 WHERE a = 1 AND b >= 2 AND c >= 2; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref k,l,m,n k 5 const 66 Using where +1 SIMPLE t2 range k,l,m,n k 5 NULL 66 Using index condition; Using where; Using MRR DROP TABLE t1, t2; # # BUG#11765831: 'RANGE ACCESS' MAY INCORRECTLY FILTER diff --git a/mysql-test/r/range_icp_mrr.result b/mysql-test/r/range_icp_mrr.result index a21557d4f3c..4a7b4a22205 100644 --- a/mysql-test/r/range_icp_mrr.result +++ b/mysql-test/r/range_icp_mrr.result @@ -224,27 +224,27 @@ Table Op Msg_type Msg_text test.t1 analyze status OK explain select * from t1, t1 t2 where t1.y = 8 and t2.x between 7 and t1.y+0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 8 and t2.x >= 7 and t2.x <= t1.y+0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between t1.y-1 and t1.y+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 3 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= t1.y-1 and t2.x <= t1.y+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 3 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between 0 and t1.y; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= 0 and t2.x <= t1.y; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using index condition; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using index condition; Using MRR; Using join buffer (Block Nested Loop) explain select count(*) from t1 where x in (1); id select_type table type possible_keys key key_len ref rows Extra @@ -326,8 +326,8 @@ KEY recount( owner, line ) INSERT into t1 (owner,id,columnid,line) values (11,15,15,1),(11,13,13,5); SELECT id, columnid, tableid, content, showid, line, ordinal FROM t1 WHERE owner=11 AND ((columnid IN ( 15, 13, 14 ) AND line IN ( 1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 31 )) OR (columnid IN ( 13, 14 ) AND line IN ( 15 ))) LIMIT 0 , 30; id columnid tableid content showid line ordinal -13 13 1 188 1 5 0 15 15 1 188 1 1 0 +13 13 1 188 1 5 0 drop table t1; create table t1 (id int(10) primary key); insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9); @@ -619,7 +619,7 @@ INSERT INTO t1 (a) VALUES ('111'),('222'),('222'),('222'),('222'),('444'),('aaa'),('AAA'),('bbb'); explain select * from t1 where a='aaa'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref a a 11 const 2 Using index condition +1 SIMPLE t1 range a a 11 NULL 2 Using index condition; Using MRR explain select * from t1 where a=binary 'aaa'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 11 NULL 2 Using index condition; Using MRR @@ -708,8 +708,8 @@ WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND v.oxrootid ='d8c4177d09f8b11f5.52725521' AND s.oxleft > v.oxleft AND s.oxleft < v.oxright; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE v ref OXLEFT,OXRIGHT,OXROOTID OXROOTID 34 const 5 Using index condition -1 SIMPLE s ref OXLEFT,OXROOTID OXROOTID 34 const 5 Using index condition; Using where +1 SIMPLE v range OXLEFT,OXRIGHT,OXROOTID OXROOTID 34 NULL 5 Using index condition; Using MRR +1 SIMPLE s range OXLEFT,OXROOTID OXROOTID 34 NULL 5 Using index condition; Using where; Using MRR; Using join buffer (Block Nested Loop) SELECT s.oxid FROM t1 v, t1 s WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND v.oxrootid ='d8c4177d09f8b11f5.52725521' AND @@ -1026,10 +1026,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 13 NULL # Using index condition; Using MRR explain select * from t2 where a between 'a' and 'a '; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref a a 13 const # Using index condition +1 SIMPLE t2 range a a 13 NULL # Using index condition; Using MRR explain select * from t2 where a = 'a' or a='a '; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref a a 13 const # Using index condition +1 SIMPLE t2 range a a 13 NULL # Using index condition; Using MRR update t1 set a='b' where a<>'a'; explain select * from t1 where a not between 'b' and 'b'; id select_type table type possible_keys key key_len ref rows Extra @@ -1115,7 +1115,7 @@ Table Op Msg_type Msg_text test.t1 analyze status OK EXPLAIN SELECT * FROM t1 WHERE item='A1' AND started<='2005-12-01 24:00:00'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref PRIMARY PRIMARY 20 const 2 Using index condition +1 SIMPLE t1 range PRIMARY PRIMARY 20 NULL 2 Using index condition; Using MRR Warnings: Warning 1292 Incorrect datetime value: '2005-12-01 24:00:00' for column 'started' at row 1 Warning 1292 Incorrect datetime value: '2005-12-01 24:00:00' for column 'started' at row 1 @@ -1983,7 +1983,7 @@ INSERT INTO t2 VALUES (1, 1, 2); # range estimates k is selected. EXPLAIN SELECT * FROM t2 WHERE a = 1 AND b >= 2 AND c >= 2; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref k,l,m,n k 5 const 66 Using where +1 SIMPLE t2 range k,l,m,n k 5 NULL 66 Using index condition; Using where; Using MRR DROP TABLE t1, t2; # # BUG#11765831: 'RANGE ACCESS' MAY INCORRECTLY FILTER diff --git a/mysql-test/r/range_mrr.result b/mysql-test/r/range_mrr.result index 77f202ac6ff..53bd403c82c 100644 --- a/mysql-test/r/range_mrr.result +++ b/mysql-test/r/range_mrr.result @@ -224,27 +224,27 @@ Table Op Msg_type Msg_text test.t1 analyze status OK explain select * from t1, t1 t2 where t1.y = 8 and t2.x between 7 and t1.y+0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using where; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using where; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 8 and t2.x >= 7 and t2.x <= t1.y+0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using where; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using where; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between t1.y-1 and t1.y+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using where; Using MRR 1 SIMPLE t2 range x x 5 NULL 3 Using where; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= t1.y-1 and t2.x <= t1.y+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using where; Using MRR 1 SIMPLE t2 range x x 5 NULL 3 Using where; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x between 0 and t1.y; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using where; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using where; Using MRR; Using join buffer (Block Nested Loop) explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= 0 and t2.x <= t1.y; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 NULL +1 SIMPLE t1 range y y 5 NULL 1 Using where; Using MRR 1 SIMPLE t2 range x x 5 NULL 2 Using where; Using MRR; Using join buffer (Block Nested Loop) explain select count(*) from t1 where x in (1); id select_type table type possible_keys key key_len ref rows Extra @@ -326,8 +326,8 @@ KEY recount( owner, line ) INSERT into t1 (owner,id,columnid,line) values (11,15,15,1),(11,13,13,5); SELECT id, columnid, tableid, content, showid, line, ordinal FROM t1 WHERE owner=11 AND ((columnid IN ( 15, 13, 14 ) AND line IN ( 1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 31 )) OR (columnid IN ( 13, 14 ) AND line IN ( 15 ))) LIMIT 0 , 30; id columnid tableid content showid line ordinal -13 13 1 188 1 5 0 15 15 1 188 1 1 0 +13 13 1 188 1 5 0 drop table t1; create table t1 (id int(10) primary key); insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9); @@ -619,7 +619,7 @@ INSERT INTO t1 (a) VALUES ('111'),('222'),('222'),('222'),('222'),('444'),('aaa'),('AAA'),('bbb'); explain select * from t1 where a='aaa'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref a a 11 const 2 Using where +1 SIMPLE t1 range a a 11 NULL 2 Using where; Using MRR explain select * from t1 where a=binary 'aaa'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 11 NULL 2 Using where; Using MRR @@ -708,8 +708,8 @@ WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND v.oxrootid ='d8c4177d09f8b11f5.52725521' AND s.oxleft > v.oxleft AND s.oxleft < v.oxright; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE v ref OXLEFT,OXRIGHT,OXROOTID OXROOTID 34 const 5 Using where -1 SIMPLE s ref OXLEFT,OXROOTID OXROOTID 34 const 5 Using where +1 SIMPLE v range OXLEFT,OXRIGHT,OXROOTID OXROOTID 34 NULL 5 Using where; Using MRR +1 SIMPLE s range OXLEFT,OXROOTID OXROOTID 34 NULL 5 Using where; Using MRR; Using join buffer (Block Nested Loop) SELECT s.oxid FROM t1 v, t1 s WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND v.oxrootid ='d8c4177d09f8b11f5.52725521' AND @@ -1026,10 +1026,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range a a 13 NULL # Using where; Using MRR explain select * from t2 where a between 'a' and 'a '; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref a a 13 const # Using where +1 SIMPLE t2 range a a 13 NULL # Using where; Using MRR explain select * from t2 where a = 'a' or a='a '; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref a a 13 const # Using where +1 SIMPLE t2 range a a 13 NULL # Using where; Using MRR update t1 set a='b' where a<>'a'; explain select * from t1 where a not between 'b' and 'b'; id select_type table type possible_keys key key_len ref rows Extra @@ -1115,7 +1115,7 @@ Table Op Msg_type Msg_text test.t1 analyze status OK EXPLAIN SELECT * FROM t1 WHERE item='A1' AND started<='2005-12-01 24:00:00'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref PRIMARY PRIMARY 20 const 2 Using where +1 SIMPLE t1 range PRIMARY PRIMARY 20 NULL 2 Using where; Using MRR Warnings: Warning 1292 Incorrect datetime value: '2005-12-01 24:00:00' for column 'started' at row 1 Warning 1292 Incorrect datetime value: '2005-12-01 24:00:00' for column 'started' at row 1 @@ -1983,7 +1983,7 @@ INSERT INTO t2 VALUES (1, 1, 2); # range estimates k is selected. EXPLAIN SELECT * FROM t2 WHERE a = 1 AND b >= 2 AND c >= 2; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref k,l,m,n k 5 const 66 Using where +1 SIMPLE t2 range k,l,m,n k 5 NULL 66 Using where; Using MRR DROP TABLE t1, t2; # # BUG#11765831: 'RANGE ACCESS' MAY INCORRECTLY FILTER diff --git a/mysql-test/r/select_all.result b/mysql-test/r/select_all.result index 4f76c62f66c..0709621b817 100644 --- a/mysql-test/r/select_all.result +++ b/mysql-test/r/select_all.result @@ -2363,7 +2363,7 @@ insert into t1 values (1,2), (2,2), (3,2), (4,2); insert into t2 values (1,3), (2,3), (3,4), (4,4); explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 NULL +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using MRR 1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) select * from t1 left join t2 on a=c where d in (4); a b c d @@ -2371,7 +2371,7 @@ a b c d 4 2 4 4 explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 NULL +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using MRR 1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) select * from t1 left join t2 on a=c where d = 4; a b c d @@ -2718,7 +2718,7 @@ explain select straight_join DISTINCT t2.a,t2.b, t1.c from t1, t3, t2 where (t1.c=t2.a or (t1.c=t3.a and t2.a=t3.b)) and t1.b=556476786 and t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort +1 SIMPLE t1 range b,c b 5 NULL 1 Using index condition; Using MRR; Using temporary; Using filesort 1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer (Block Nested Loop) 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; @@ -3540,7 +3540,7 @@ WHERE t1.id=2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 NULL 1 SIMPLE t2 const idx1 NULL NULL NULL 1 NULL -1 SIMPLE t3 ref idx1 idx1 5 const 3 NULL +1 SIMPLE t3 range idx1 idx1 5 NULL 3 Using index condition; Using MRR SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id WHERE t1.id=2; id a b c d e @@ -3677,12 +3677,12 @@ COUNT(*) 2 EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 ( ID1_with_null int NULL, @@ -3714,34 +3714,34 @@ COUNT(*) EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND (ID2_with_null=1 OR ID2_with_null=2); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts)); INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00"); diff --git a/mysql-test/r/select_all_bka.result b/mysql-test/r/select_all_bka.result index 0f411eb35ac..7a2192973a7 100644 --- a/mysql-test/r/select_all_bka.result +++ b/mysql-test/r/select_all_bka.result @@ -2364,7 +2364,7 @@ insert into t1 values (1,2), (2,2), (3,2), (4,2); insert into t2 values (1,3), (2,3), (3,4), (4,4); explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 NULL +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using MRR 1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) select * from t1 left join t2 on a=c where d in (4); a b c d @@ -2372,7 +2372,7 @@ a b c d 4 2 4 4 explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 NULL +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using MRR 1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) select * from t1 left join t2 on a=c where d = 4; a b c d @@ -2719,7 +2719,7 @@ explain select straight_join DISTINCT t2.a,t2.b, t1.c from t1, t3, t2 where (t1.c=t2.a or (t1.c=t3.a and t2.a=t3.b)) and t1.b=556476786 and t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort +1 SIMPLE t1 range b,c b 5 NULL 1 Using index condition; Using MRR; Using temporary; Using filesort 1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer (Block Nested Loop) 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; @@ -3541,7 +3541,7 @@ WHERE t1.id=2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 NULL 1 SIMPLE t2 const idx1 NULL NULL NULL 1 NULL -1 SIMPLE t3 ref idx1 idx1 5 const 3 NULL +1 SIMPLE t3 range idx1 idx1 5 NULL 3 Using index condition; Using MRR SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id WHERE t1.id=2; id a b c d e @@ -3678,12 +3678,12 @@ COUNT(*) 2 EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 ( ID1_with_null int NULL, @@ -3715,34 +3715,34 @@ COUNT(*) EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND (ID2_with_null=1 OR ID2_with_null=2); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts)); INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00"); diff --git a/mysql-test/r/select_all_bka_nixbnl.result b/mysql-test/r/select_all_bka_nixbnl.result index c67da491f07..6068f71ca58 100644 --- a/mysql-test/r/select_all_bka_nixbnl.result +++ b/mysql-test/r/select_all_bka_nixbnl.result @@ -2364,7 +2364,7 @@ insert into t1 values (1,2), (2,2), (3,2), (4,2); insert into t2 values (1,3), (2,3), (3,4), (4,4); explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 Using where +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using where; Using MRR 1 SIMPLE t1 ref a a 5 test.t2.c 2 Using join buffer (Batched Key Access) select * from t1 left join t2 on a=c where d in (4); a b c d @@ -2372,7 +2372,7 @@ a b c d 4 2 4 4 explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 Using where +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using where; Using MRR 1 SIMPLE t1 ref a a 5 test.t2.c 2 Using join buffer (Batched Key Access) select * from t1 left join t2 on a=c where d = 4; a b c d @@ -2719,7 +2719,7 @@ explain select straight_join DISTINCT t2.a,t2.b, t1.c from t1, t3, t2 where (t1.c=t2.a or (t1.c=t3.a and t2.a=t3.b)) and t1.b=556476786 and t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort +1 SIMPLE t1 range b,c b 5 NULL 1 Using index condition; Using MRR; Using temporary; Using filesort 1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; @@ -3541,7 +3541,7 @@ WHERE t1.id=2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 NULL 1 SIMPLE t2 const idx1 NULL NULL NULL 1 NULL -1 SIMPLE t3 ref idx1 idx1 5 const 3 NULL +1 SIMPLE t3 range idx1 idx1 5 NULL 3 Using index condition; Using MRR SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id WHERE t1.id=2; id a b c d e @@ -3678,12 +3678,12 @@ COUNT(*) 2 EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 ( ID1_with_null int NULL, @@ -3715,34 +3715,34 @@ COUNT(*) EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND (ID2_with_null=1 OR ID2_with_null=2); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts)); INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00"); diff --git a/mysql-test/r/select_icp_mrr.result b/mysql-test/r/select_icp_mrr.result index f78aefbed7b..d7cdd279f6c 100644 --- a/mysql-test/r/select_icp_mrr.result +++ b/mysql-test/r/select_icp_mrr.result @@ -2363,7 +2363,7 @@ insert into t1 values (1,2), (2,2), (3,2), (4,2); insert into t2 values (1,3), (2,3), (3,4), (4,4); explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 NULL +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using MRR 1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) select * from t1 left join t2 on a=c where d in (4); a b c d @@ -2371,7 +2371,7 @@ a b c d 4 2 4 4 explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 NULL +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using MRR 1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) select * from t1 left join t2 on a=c where d = 4; a b c d @@ -2718,7 +2718,7 @@ explain select straight_join DISTINCT t2.a,t2.b, t1.c from t1, t3, t2 where (t1.c=t2.a or (t1.c=t3.a and t2.a=t3.b)) and t1.b=556476786 and t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort +1 SIMPLE t1 range b,c b 5 NULL 1 Using index condition; Using MRR; Using temporary; Using filesort 1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer (Block Nested Loop) 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; @@ -3540,7 +3540,7 @@ WHERE t1.id=2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 NULL 1 SIMPLE t2 const idx1 NULL NULL NULL 1 NULL -1 SIMPLE t3 ref idx1 idx1 5 const 3 NULL +1 SIMPLE t3 range idx1 idx1 5 NULL 3 Using index condition; Using MRR SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id WHERE t1.id=2; id a b c d e @@ -3677,12 +3677,12 @@ COUNT(*) 2 EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 ( ID1_with_null int NULL, @@ -3714,34 +3714,34 @@ COUNT(*) EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND (ID2_with_null=1 OR ID2_with_null=2); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts)); INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00"); diff --git a/mysql-test/r/select_icp_mrr_bka.result b/mysql-test/r/select_icp_mrr_bka.result index eb652487533..b77df1ca808 100644 --- a/mysql-test/r/select_icp_mrr_bka.result +++ b/mysql-test/r/select_icp_mrr_bka.result @@ -2364,7 +2364,7 @@ insert into t1 values (1,2), (2,2), (3,2), (4,2); insert into t2 values (1,3), (2,3), (3,4), (4,4); explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 NULL +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using MRR 1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) select * from t1 left join t2 on a=c where d in (4); a b c d @@ -2372,7 +2372,7 @@ a b c d 4 2 4 4 explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 NULL +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using MRR 1 SIMPLE t1 ALL a NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) select * from t1 left join t2 on a=c where d = 4; a b c d @@ -2719,7 +2719,7 @@ explain select straight_join DISTINCT t2.a,t2.b, t1.c from t1, t3, t2 where (t1.c=t2.a or (t1.c=t3.a and t2.a=t3.b)) and t1.b=556476786 and t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort +1 SIMPLE t1 range b,c b 5 NULL 1 Using index condition; Using MRR; Using temporary; Using filesort 1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index; Using join buffer (Block Nested Loop) 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; @@ -3541,7 +3541,7 @@ WHERE t1.id=2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 NULL 1 SIMPLE t2 const idx1 NULL NULL NULL 1 NULL -1 SIMPLE t3 ref idx1 idx1 5 const 3 NULL +1 SIMPLE t3 range idx1 idx1 5 NULL 3 Using index condition; Using MRR SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id WHERE t1.id=2; id a b c d e @@ -3678,12 +3678,12 @@ COUNT(*) 2 EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 ( ID1_with_null int NULL, @@ -3715,34 +3715,34 @@ COUNT(*) EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND (ID2_with_null=1 OR ID2_with_null=2); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts)); INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00"); diff --git a/mysql-test/r/select_icp_mrr_bka_nixbnl.result b/mysql-test/r/select_icp_mrr_bka_nixbnl.result index cd592e0fc56..ff7819edbb7 100644 --- a/mysql-test/r/select_icp_mrr_bka_nixbnl.result +++ b/mysql-test/r/select_icp_mrr_bka_nixbnl.result @@ -2364,7 +2364,7 @@ insert into t1 values (1,2), (2,2), (3,2), (4,2); insert into t2 values (1,3), (2,3), (3,4), (4,4); explain select * from t1 left join t2 on a=c where d in (4); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 Using where +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using where; Using MRR 1 SIMPLE t1 ref a a 5 test.t2.c 2 Using join buffer (Batched Key Access) select * from t1 left join t2 on a=c where d in (4); a b c d @@ -2372,7 +2372,7 @@ a b c d 4 2 4 4 explain select * from t1 left join t2 on a=c where d = 4; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ref c,d d 5 const 2 Using where +1 SIMPLE t2 range c,d d 5 NULL 2 Using index condition; Using where; Using MRR 1 SIMPLE t1 ref a a 5 test.t2.c 2 Using join buffer (Batched Key Access) select * from t1 left join t2 on a=c where d = 4; a b c d @@ -2719,7 +2719,7 @@ explain select straight_join DISTINCT t2.a,t2.b, t1.c from t1, t3, t2 where (t1.c=t2.a or (t1.c=t3.a and t2.a=t3.b)) and t1.b=556476786 and t2.b like '%%' order by t2.b limit 0,1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref b,c b 5 const 1 Using temporary; Using filesort +1 SIMPLE t1 range b,c b 5 NULL 1 Using index condition; Using MRR; Using temporary; Using filesort 1 SIMPLE t3 index PRIMARY,a,b PRIMARY 8 NULL 2 Using index 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 2 Range checked for each record (index map: 0x1) DROP TABLE t1,t2,t3; @@ -3541,7 +3541,7 @@ WHERE t1.id=2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 NULL 1 SIMPLE t2 const idx1 NULL NULL NULL 1 NULL -1 SIMPLE t3 ref idx1 idx1 5 const 3 NULL +1 SIMPLE t3 range idx1 idx1 5 NULL 3 Using index condition; Using MRR SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id WHERE t1.id=2; id a b c d e @@ -3678,12 +3678,12 @@ COUNT(*) 2 EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 ( ID1_with_null int NULL, @@ -3715,34 +3715,34 @@ COUNT(*) EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP INDEX idx1 ON t1; CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null); EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null IS NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR EXPLAIN SELECT * FROM t1 WHERE ID_better=1 AND ID1_with_null IS NULL AND (ID2_with_null=1 OR ID2_with_null=2); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref idx1,idx2 idx2 4 const 1 Using where +1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 1 Using index condition; Using where; Using MRR DROP TABLE t1; CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts)); INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00"); diff --git a/mysql-test/r/subquery_all.result b/mysql-test/r/subquery_all.result index 1916b8ffd6c..bf7bf727917 100644 --- a/mysql-test/r/subquery_all.result +++ b/mysql-test/r/subquery_all.result @@ -1242,7 +1242,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t1 ref salary salary 5 const 1 100.00 Using where +1 PRIMARY t1 range salary salary 5 NULL 1 100.00 Using where; Using MRR 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (/* select#2 */ select max(`test`.`t1`.`salary`) from `test`.`t1`)) @@ -6274,7 +6274,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6435,7 +6435,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6714,7 +6714,7 @@ t1 AS t1f STRAIGHT_JOIN t3 AS t3f; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1f ALL NULL NULL NULL NULL 2 NULL 1 PRIMARY t3f index NULL col_varchar_key 9 NULL 3 Using index; Using join buffer (Block Nested Loop) -2 DEPENDENT SUBQUERY t1s ref col_int_key col_int_key 5 const 1 Using where +2 DEPENDENT SUBQUERY t1s range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY t3s index NULL col_int_key 5 NULL 3 Using index; Using join buffer (Block Nested Loop) DROP TABLE t1,t3; # diff --git a/mysql-test/r/subquery_all_bka.result b/mysql-test/r/subquery_all_bka.result index 99e3475ea24..73e4edb14eb 100644 --- a/mysql-test/r/subquery_all_bka.result +++ b/mysql-test/r/subquery_all_bka.result @@ -1243,7 +1243,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t1 ref salary salary 5 const 1 100.00 Using where +1 PRIMARY t1 range salary salary 5 NULL 1 100.00 Using where; Using MRR 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (/* select#2 */ select max(`test`.`t1`.`salary`) from `test`.`t1`)) @@ -6275,7 +6275,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6436,7 +6436,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6715,7 +6715,7 @@ t1 AS t1f STRAIGHT_JOIN t3 AS t3f; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1f ALL NULL NULL NULL NULL 2 NULL 1 PRIMARY t3f index NULL col_varchar_key 9 NULL 3 Using index; Using join buffer (Block Nested Loop) -2 DEPENDENT SUBQUERY t1s ref col_int_key col_int_key 5 const 1 Using where +2 DEPENDENT SUBQUERY t1s range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY t3s index NULL col_int_key 5 NULL 3 Using index; Using join buffer (Block Nested Loop) DROP TABLE t1,t3; # diff --git a/mysql-test/r/subquery_all_bka_nixbnl.result b/mysql-test/r/subquery_all_bka_nixbnl.result index 6e333e1f0aa..fa97394b5e0 100644 --- a/mysql-test/r/subquery_all_bka_nixbnl.result +++ b/mysql-test/r/subquery_all_bka_nixbnl.result @@ -1243,7 +1243,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t1 ref salary salary 5 const 1 100.00 Using where +1 PRIMARY t1 range salary salary 5 NULL 1 100.00 Using where; Using MRR 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (/* select#2 */ select max(`test`.`t1`.`salary`) from `test`.`t1`)) @@ -6275,7 +6275,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6436,7 +6436,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6715,7 +6715,7 @@ t1 AS t1f STRAIGHT_JOIN t3 AS t3f; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1f ALL NULL NULL NULL NULL 2 NULL 1 PRIMARY t3f index NULL col_varchar_key 9 NULL 3 Using index -2 DEPENDENT SUBQUERY t1s ref col_int_key col_int_key 5 const 1 Using where +2 DEPENDENT SUBQUERY t1s range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY t3s index NULL col_int_key 5 NULL 3 Using index DROP TABLE t1,t3; # diff --git a/mysql-test/r/subquery_nomat_nosj.result b/mysql-test/r/subquery_nomat_nosj.result index cfbaf0125b7..d7294392ff0 100644 --- a/mysql-test/r/subquery_nomat_nosj.result +++ b/mysql-test/r/subquery_nomat_nosj.result @@ -1242,7 +1242,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t1 ref salary salary 5 const 1 100.00 Using where +1 PRIMARY t1 range salary salary 5 NULL 1 100.00 Using where; Using MRR 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (/* select#2 */ select max(`test`.`t1`.`salary`) from `test`.`t1`)) @@ -6274,7 +6274,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6435,7 +6435,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6714,7 +6714,7 @@ t1 AS t1f STRAIGHT_JOIN t3 AS t3f; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1f ALL NULL NULL NULL NULL 2 NULL 1 PRIMARY t3f index NULL col_varchar_key 9 NULL 3 Using index; Using join buffer (Block Nested Loop) -2 DEPENDENT SUBQUERY t1s ref col_int_key col_int_key 5 const 1 Using where +2 DEPENDENT SUBQUERY t1s range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY t3s index NULL col_int_key 5 NULL 3 Using index; Using join buffer (Block Nested Loop) DROP TABLE t1,t3; # diff --git a/mysql-test/r/subquery_nomat_nosj_bka.result b/mysql-test/r/subquery_nomat_nosj_bka.result index 75bae58be9f..712d01c6731 100644 --- a/mysql-test/r/subquery_nomat_nosj_bka.result +++ b/mysql-test/r/subquery_nomat_nosj_bka.result @@ -1243,7 +1243,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t1 ref salary salary 5 const 1 100.00 Using where +1 PRIMARY t1 range salary salary 5 NULL 1 100.00 Using where; Using MRR 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (/* select#2 */ select max(`test`.`t1`.`salary`) from `test`.`t1`)) @@ -6275,7 +6275,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6436,7 +6436,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6715,7 +6715,7 @@ t1 AS t1f STRAIGHT_JOIN t3 AS t3f; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1f ALL NULL NULL NULL NULL 2 NULL 1 PRIMARY t3f index NULL col_varchar_key 9 NULL 3 Using index; Using join buffer (Block Nested Loop) -2 DEPENDENT SUBQUERY t1s ref col_int_key col_int_key 5 const 1 Using where +2 DEPENDENT SUBQUERY t1s range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY t3s index NULL col_int_key 5 NULL 3 Using index; Using join buffer (Block Nested Loop) DROP TABLE t1,t3; # diff --git a/mysql-test/r/subquery_nomat_nosj_bka_nixbnl.result b/mysql-test/r/subquery_nomat_nosj_bka_nixbnl.result index 5dc81ff69e4..649378133b0 100644 --- a/mysql-test/r/subquery_nomat_nosj_bka_nixbnl.result +++ b/mysql-test/r/subquery_nomat_nosj_bka_nixbnl.result @@ -1243,7 +1243,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t1 ref salary salary 5 const 1 100.00 Using where +1 PRIMARY t1 range salary salary 5 NULL 1 100.00 Using where; Using MRR 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (/* select#2 */ select max(`test`.`t1`.`salary`) from `test`.`t1`)) @@ -6275,7 +6275,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6436,7 +6436,7 @@ INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 NULL -2 DERIVED t1 ref a a 5 const 1 NULL +2 DERIVED t1 range a a 5 NULL 1 Using index condition; Using MRR EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -6715,7 +6715,7 @@ t1 AS t1f STRAIGHT_JOIN t3 AS t3f; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1f ALL NULL NULL NULL NULL 2 NULL 1 PRIMARY t3f index NULL col_varchar_key 9 NULL 3 Using index -2 DEPENDENT SUBQUERY t1s ref col_int_key col_int_key 5 const 1 Using where +2 DEPENDENT SUBQUERY t1s range col_int_key col_int_key 5 NULL 1 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY t3s index NULL col_int_key 5 NULL 3 Using index DROP TABLE t1,t3; # diff --git a/mysql-test/r/subquery_sj_all.result b/mysql-test/r/subquery_sj_all.result index 15a1b675f3b..e1c19cd33d4 100644 --- a/mysql-test/r/subquery_sj_all.result +++ b/mysql-test/r/subquery_sj_all.result @@ -6240,7 +6240,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using join buffer (Block Nested Loop) 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (Block Nested Loop) 2 MATERIALIZED t4 ALL NULL NULL NULL NULL 1 NULL -2 MATERIALIZED t3 ref uid uid 5 const 1 Using where +2 MATERIALIZED t3 range uid uid 5 NULL 1 Using index condition; Using where; Using MRR; Using join buffer (Block Nested Loop) select t2.uid from t2, t1 where t1.uid in (select t4.uid from t4, t3 where t3.uid=1 and t4.uid=t3.fid) and t2.uid=t1.fid; @@ -6874,7 +6874,7 @@ explain select name from t2, t1 where t1.uid in (select t4.uid from t4, t3 where t3.uid=1 and t4.uid=t3.fid) and t2.uid=t1.fid; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t3 ref uid uid 5 const 4 Using where; Start temporary +1 SIMPLE t3 range uid uid 5 NULL 4 Using index condition; Using where; Using MRR; Start temporary 1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t3.fid 1 Using index 1 SIMPLE t1 ref uid uid 5 test.t3.fid 2 Using where 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.fid 1 End temporary @@ -7952,7 +7952,7 @@ WHERE t2.col_int_key = 1 id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 Using where 1 SIMPLE <subquery2> eq_ref <auto_key> <auto_key> 9 test.t4.col_int_nokey,test.t4.col_varchar_key 1 NULL -2 MATERIALIZED t2 ref col_int_key col_int_key 5 const 3 Using where +2 MATERIALIZED t2 range col_int_key col_int_key 5 NULL 3 Using index condition; Using where; Using MRR 2 MATERIALIZED t1 ref col_varchar_key col_varchar_key 4 test.t2.col_varchar_key 2 Using index SELECT * FROM t4 @@ -8113,9 +8113,9 @@ AND grandparent1.col_int_key <> 3 ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -2 DEPENDENT SUBQUERY grandparent1 ref col_int_key col_int_key 4 func 2 Using index condition; Using where +2 DEPENDENT SUBQUERY grandparent1 range col_int_key col_int_key 4 NULL 12 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY <subquery3> eq_ref <auto_key> <auto_key> 8 test.grandparent1.col_int_nokey,test.grandparent1.col_int_nokey 1 NULL -3 MATERIALIZED parent1 ref col_int_key col_int_key 4 func 2 NULL +3 MATERIALIZED parent1 range col_int_key col_int_key 4 NULL 12 Using where; Using MRR 3 MATERIALIZED parent2 index col_int_key col_int_key 4 NULL 1 Using where; Using index; Using join buffer (Block Nested Loop) explain format=json SELECT * FROM t3 WHERE g1 NOT IN @@ -8146,7 +8146,7 @@ EXPLAIN { "table": { "table_name": "grandparent1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "col_int_key" ], @@ -8155,12 +8155,10 @@ EXPLAIN "col_int_key" ], "key_length": "4", - "ref": [ - "func" - ], - "rows": 2, + "rows": 12, "filtered": 100, "index_condition": "(`test`.`grandparent1`.`col_int_key` <> 3)", + "using_MRR": true, "attached_condition": "(((`test`.`grandparent1`.`col_int_key` = `test`.`grandparent1`.`col_int_nokey`) and (<cache>('8') = `test`.`grandparent1`.`col_int_nokey`)) and ((`test`.`grandparent1`.`col_int_nokey` is not null) and (`test`.`grandparent1`.`col_int_nokey` is not null)))" } }, @@ -8182,7 +8180,7 @@ EXPLAIN { "table": { "table_name": "parent1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "col_int_key" ], @@ -8191,11 +8189,10 @@ EXPLAIN "col_int_key" ], "key_length": "4", - "ref": [ - "func" - ], - "rows": 2, - "filtered": 100 + "rows": 12, + "filtered": 100, + "using_MRR": true, + "attached_condition": "1" } }, { @@ -8328,7 +8325,7 @@ FROM t1 ); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 system PRIMARY,col_int_key NULL NULL NULL 1 NULL -1 SIMPLE t1a ref col_int_key col_int_key 4 const 1 NULL +1 SIMPLE t1a range col_int_key col_int_key 4 NULL 1 Using index condition; Using MRR 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t1a); Using join buffer (Block Nested Loop) 1 SIMPLE t1b ALL NULL NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) SELECT t1a.* @@ -10623,7 +10620,7 @@ EXPLAIN SELECT name FROM t2, t1 WHERE t1.uid IN (SELECT t4.uid FROM t4, t3 WHERE t3.uid=1 AND t4.uid=t3.fid) AND t2.uid=t1.fid; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t3 ref uid uid 5 const 4 Using where; Start temporary +1 SIMPLE t3 range uid uid 5 NULL 4 Using index condition; Using where; Using MRR; Start temporary 1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t3.fid 1 Using index 1 SIMPLE t1 ALL uid NULL NULL NULL 11 Using where; End temporary; Using join buffer (Block Nested Loop) 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.fid 1 NULL @@ -10650,7 +10647,7 @@ Handler_read_key 16 Handler_read_last 0 Handler_read_next 4 Handler_read_prev 0 -Handler_read_rnd 0 +Handler_read_rnd 4 Handler_read_rnd_next 12 DROP TABLE t1,t2,t3,t4; # End of test for Bug#18194196 diff --git a/mysql-test/r/subquery_sj_all_bka.result b/mysql-test/r/subquery_sj_all_bka.result index 40a4e06a887..0d921663cee 100644 --- a/mysql-test/r/subquery_sj_all_bka.result +++ b/mysql-test/r/subquery_sj_all_bka.result @@ -6243,7 +6243,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using join buffer (Block Nested Loop) 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (Block Nested Loop) 2 MATERIALIZED t4 ALL NULL NULL NULL NULL 1 NULL -2 MATERIALIZED t3 ref uid uid 5 const 1 Using where; Using join buffer (Batched Key Access) +2 MATERIALIZED t3 range uid uid 5 NULL 1 Using index condition; Using where; Using MRR; Using join buffer (Block Nested Loop) select t2.uid from t2, t1 where t1.uid in (select t4.uid from t4, t3 where t3.uid=1 and t4.uid=t3.fid) and t2.uid=t1.fid; @@ -6879,7 +6879,7 @@ explain select name from t2, t1 where t1.uid in (select t4.uid from t4, t3 where t3.uid=1 and t4.uid=t3.fid) and t2.uid=t1.fid; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t3 ref uid uid 5 const 4 Using where; Start temporary +1 SIMPLE t3 range uid uid 5 NULL 4 Using index condition; Using where; Using MRR; Start temporary 1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t3.fid 1 Using index 1 SIMPLE t1 ref uid uid 5 test.t3.fid 2 Using where; Using join buffer (Batched Key Access) 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.fid 1 End temporary; Using join buffer (Batched Key Access) @@ -7957,7 +7957,7 @@ WHERE t2.col_int_key = 1 id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 Using where 1 SIMPLE <subquery2> eq_ref <auto_key> <auto_key> 9 test.t4.col_int_nokey,test.t4.col_varchar_key 1 NULL -2 MATERIALIZED t2 ref col_int_key col_int_key 5 const 3 Using where +2 MATERIALIZED t2 range col_int_key col_int_key 5 NULL 3 Using index condition; Using where; Using MRR 2 MATERIALIZED t1 ref col_varchar_key col_varchar_key 4 test.t2.col_varchar_key 2 Using index SELECT * FROM t4 @@ -8118,9 +8118,9 @@ AND grandparent1.col_int_key <> 3 ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -2 DEPENDENT SUBQUERY grandparent1 ref col_int_key col_int_key 4 func 2 Using index condition; Using where +2 DEPENDENT SUBQUERY grandparent1 range col_int_key col_int_key 4 NULL 12 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY <subquery3> eq_ref <auto_key> <auto_key> 8 test.grandparent1.col_int_nokey,test.grandparent1.col_int_nokey 1 NULL -3 MATERIALIZED parent1 ref col_int_key col_int_key 4 func 2 NULL +3 MATERIALIZED parent1 range col_int_key col_int_key 4 NULL 12 Using where; Using MRR 3 MATERIALIZED parent2 index col_int_key col_int_key 4 NULL 1 Using where; Using index; Using join buffer (Block Nested Loop) explain format=json SELECT * FROM t3 WHERE g1 NOT IN @@ -8151,7 +8151,7 @@ EXPLAIN { "table": { "table_name": "grandparent1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "col_int_key" ], @@ -8160,12 +8160,10 @@ EXPLAIN "col_int_key" ], "key_length": "4", - "ref": [ - "func" - ], - "rows": 2, + "rows": 12, "filtered": 100, "index_condition": "(`test`.`grandparent1`.`col_int_key` <> 3)", + "using_MRR": true, "attached_condition": "(((`test`.`grandparent1`.`col_int_key` = `test`.`grandparent1`.`col_int_nokey`) and (<cache>('8') = `test`.`grandparent1`.`col_int_nokey`)) and ((`test`.`grandparent1`.`col_int_nokey` is not null) and (`test`.`grandparent1`.`col_int_nokey` is not null)))" } }, @@ -8187,7 +8185,7 @@ EXPLAIN { "table": { "table_name": "parent1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "col_int_key" ], @@ -8196,11 +8194,10 @@ EXPLAIN "col_int_key" ], "key_length": "4", - "ref": [ - "func" - ], - "rows": 2, - "filtered": 100 + "rows": 12, + "filtered": 100, + "using_MRR": true, + "attached_condition": "1" } }, { @@ -8333,7 +8330,7 @@ FROM t1 ); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 system PRIMARY,col_int_key NULL NULL NULL 1 NULL -1 SIMPLE t1a ref col_int_key col_int_key 4 const 1 NULL +1 SIMPLE t1a range col_int_key col_int_key 4 NULL 1 Using index condition; Using MRR 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t1a); Using join buffer (Block Nested Loop) 1 SIMPLE t1b ALL NULL NULL NULL NULL 4 Using where; Using join buffer (Block Nested Loop) SELECT t1a.* @@ -10629,7 +10626,7 @@ EXPLAIN SELECT name FROM t2, t1 WHERE t1.uid IN (SELECT t4.uid FROM t4, t3 WHERE t3.uid=1 AND t4.uid=t3.fid) AND t2.uid=t1.fid; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t3 ref uid uid 5 const 4 Using where; Start temporary +1 SIMPLE t3 range uid uid 5 NULL 4 Using index condition; Using where; Using MRR; Start temporary 1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t3.fid 1 Using index 1 SIMPLE t1 ALL uid NULL NULL NULL 11 Using where; End temporary; Using join buffer (Block Nested Loop) 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.fid 1 Using join buffer (Batched Key Access) @@ -10656,7 +10653,7 @@ Handler_read_key 16 Handler_read_last 0 Handler_read_next 15 Handler_read_prev 0 -Handler_read_rnd 11 +Handler_read_rnd 15 Handler_read_rnd_next 12 DROP TABLE t1,t2,t3,t4; # End of test for Bug#18194196 diff --git a/mysql-test/r/subquery_sj_all_bka_nixbnl.result b/mysql-test/r/subquery_sj_all_bka_nixbnl.result index d2c62e5b707..c54af1095d4 100644 --- a/mysql-test/r/subquery_sj_all_bka_nixbnl.result +++ b/mysql-test/r/subquery_sj_all_bka_nixbnl.result @@ -6253,7 +6253,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL NULL NULL NULL NULL 2 NULL 1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where 2 MATERIALIZED t4 ALL NULL NULL NULL NULL 1 NULL -2 MATERIALIZED t3 ref uid uid 5 const 1 Using where; Using join buffer (Batched Key Access) +2 MATERIALIZED t3 range uid uid 5 NULL 1 Using index condition; Using where; Using MRR select t2.uid from t2, t1 where t1.uid in (select t4.uid from t4, t3 where t3.uid=1 and t4.uid=t3.fid) and t2.uid=t1.fid; @@ -6889,7 +6889,7 @@ explain select name from t2, t1 where t1.uid in (select t4.uid from t4, t3 where t3.uid=1 and t4.uid=t3.fid) and t2.uid=t1.fid; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t3 ref uid uid 5 const 4 Using where; Start temporary +1 SIMPLE t3 range uid uid 5 NULL 4 Using index condition; Using where; Using MRR; Start temporary 1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t3.fid 1 Using index 1 SIMPLE t1 ref uid uid 5 test.t3.fid 2 Using where; Using join buffer (Batched Key Access) 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.fid 1 End temporary; Using join buffer (Batched Key Access) @@ -7967,7 +7967,7 @@ WHERE t2.col_int_key = 1 id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 Using where 1 SIMPLE <subquery2> eq_ref <auto_key> <auto_key> 9 test.t4.col_int_nokey,test.t4.col_varchar_key 1 NULL -2 MATERIALIZED t2 ref col_int_key col_int_key 5 const 3 Using where +2 MATERIALIZED t2 range col_int_key col_int_key 5 NULL 3 Using index condition; Using where; Using MRR 2 MATERIALIZED t1 ref col_varchar_key col_varchar_key 4 test.t2.col_varchar_key 2 Using index SELECT * FROM t4 @@ -8129,9 +8129,9 @@ AND grandparent1.col_int_key <> 3 ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -2 DEPENDENT SUBQUERY grandparent1 ref col_int_key col_int_key 4 func 2 Using index condition; Using where +2 DEPENDENT SUBQUERY grandparent1 range col_int_key col_int_key 4 NULL 12 Using index condition; Using where; Using MRR 2 DEPENDENT SUBQUERY <subquery3> eq_ref <auto_key> <auto_key> 8 test.grandparent1.col_int_nokey,test.grandparent1.col_int_nokey 1 NULL -3 MATERIALIZED parent1 ref col_int_key col_int_key 4 func 2 NULL +3 MATERIALIZED parent1 range col_int_key col_int_key 4 NULL 12 Using where; Using MRR 3 MATERIALIZED parent2 ref col_int_key col_int_key 4 test.parent1.col_int_nokey 2 Using index explain format=json SELECT * FROM t3 WHERE g1 NOT IN @@ -8162,7 +8162,7 @@ EXPLAIN { "table": { "table_name": "grandparent1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "col_int_key" ], @@ -8171,12 +8171,10 @@ EXPLAIN "col_int_key" ], "key_length": "4", - "ref": [ - "func" - ], - "rows": 2, + "rows": 12, "filtered": 100, "index_condition": "(`test`.`grandparent1`.`col_int_key` <> 3)", + "using_MRR": true, "attached_condition": "(((`test`.`grandparent1`.`col_int_key` = `test`.`grandparent1`.`col_int_nokey`) and (<cache>('8') = `test`.`grandparent1`.`col_int_nokey`)) and ((`test`.`grandparent1`.`col_int_nokey` is not null) and (`test`.`grandparent1`.`col_int_nokey` is not null)))" } }, @@ -8198,7 +8196,7 @@ EXPLAIN { "table": { "table_name": "parent1", - "access_type": "ref", + "access_type": "range", "possible_keys": [ "col_int_key" ], @@ -8207,11 +8205,10 @@ EXPLAIN "col_int_key" ], "key_length": "4", - "ref": [ - "func" - ], - "rows": 2, - "filtered": 100 + "rows": 12, + "filtered": 100, + "using_MRR": true, + "attached_condition": "1" } }, { @@ -8345,7 +8342,7 @@ FROM t1 ); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 system PRIMARY,col_int_key NULL NULL NULL 1 NULL -1 SIMPLE t1a ref col_int_key col_int_key 4 const 1 NULL +1 SIMPLE t1a range col_int_key col_int_key 4 NULL 1 Using index condition; Using MRR 1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using where; FirstMatch(t1a) 1 SIMPLE t1b ALL NULL NULL NULL NULL 4 Using where SELECT t1a.* @@ -10638,7 +10635,7 @@ EXPLAIN SELECT name FROM t2, t1 WHERE t1.uid IN (SELECT t4.uid FROM t4, t3 WHERE t3.uid=1 AND t4.uid=t3.fid) AND t2.uid=t1.fid; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t3 ref uid uid 5 const 4 Using where; Start temporary +1 SIMPLE t3 range uid uid 5 NULL 4 Using index condition; Using where; Using MRR; Start temporary 1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t3.fid 1 Using index 1 SIMPLE t1 ref uid uid 5 test.t3.fid 4 Using where; End temporary; Using join buffer (Batched Key Access) 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.fid 1 Using join buffer (Batched Key Access) @@ -10665,7 +10662,7 @@ Handler_read_key 20 Handler_read_last 0 Handler_read_next 26 Handler_read_prev 0 -Handler_read_rnd 22 +Handler_read_rnd 26 Handler_read_rnd_next 0 DROP TABLE t1,t2,t3,t4; # End of test for Bug#18194196

1 0

[Commits] 269ee6f6076: Issue #790: MultiGet-based MRR: Code cleanup
by Sergei Petrunia 14 Sep '19

14 Sep '19

revision-id: 269ee6f6076173a579e721d35b3834d8433271c3 (fb-prod201903-161-g269ee6f6076) parent(s): 4eb7a964f21d743d816d41870efd9133d4198469 author: Sergei Petrunia committer: Sergei Petrunia timestamp: 2019-09-14 18:43:28 +0300 message: Issue #790: MultiGet-based MRR: Code cleanup Code cleanup. --- storage/rocksdb/ha_rocksdb.cc | 193 ++++++++++++++++++++++++++++-------------- storage/rocksdb/ha_rocksdb.h | 4 - 2 files changed, 130 insertions(+), 67 deletions(-) diff --git a/storage/rocksdb/ha_rocksdb.cc b/storage/rocksdb/ha_rocksdb.cc index e490684e79b..cd2a195f088 100644 --- a/storage/rocksdb/ha_rocksdb.cc +++ b/storage/rocksdb/ha_rocksdb.cc @@ -15114,16 +15114,23 @@ void rdb_tx_multi_get(Rdb_transaction *tx, tx->multi_get(column_family, num_keys, keys, values, statuses, sorted_input); } -//// + /**************************************************************************** - * DS-MRR implementation + * Multi-Range-Read implementation based on RocksDB's MultiGet() call ***************************************************************************/ /* - A MultiGet-MRR is applicable if - - using the clustered PK - - all ranges are single-point lookups using full PK. + Check if MultiGet-MRR can be used to scan given list of ranges. + + @param seq List of ranges to scan + @param bufsz OUT How much buffer space will be required + @param flags INOUT Properties of the scan to be done + + @return + HA_POS_ERROR - The scan cannot be done at all + Other value - Number of expected output rows */ + ha_rows ha_rocksdb::multi_range_read_info_const(uint keyno, RANGE_SEQ_IF *seq, void *seq_init_param, uint n_ranges, uint *bufsz, @@ -15132,9 +15139,9 @@ ha_rows ha_rocksdb::multi_range_read_info_const(uint keyno, RANGE_SEQ_IF *seq, ha_rows res; THD *thd = table->in_use; - // MultiGet-MRR is allowed only with these settings: - // optimizer_switch='mrr=on,mrr_cost_based=off' - + // We allow MultiGet-MRR only with these settings: + // optimizer_switch='mrr=on,mrr_cost_based=off' + // mrr_cost_based is not supported bool mrr_enabled = thd->optimizer_switch_flag(OPTIMIZER_SWITCH_MRR) && !thd->optimizer_switch_flag(OPTIMIZER_SWITCH_MRR_COST_BASED); @@ -15142,10 +15149,17 @@ ha_rows ha_rocksdb::multi_range_read_info_const(uint keyno, RANGE_SEQ_IF *seq, res = handler::multi_range_read_info_const(keyno, seq, seq_init_param, n_ranges, bufsz, flags, cost); - if (res == HA_POS_ERROR || m_lock_rows != RDB_LOCK_NONE || !mrr_enabled) + if (res == HA_POS_ERROR) return res; // Not possible to do the scan + + // Use the default MRR implementation if @@optimizer_switch value tells us + // to, or if the query needs to do a locking read. + if (!mrr_enabled || m_lock_rows != RDB_LOCK_NONE) return res; if (keyno == table->s->primary_key) { + // We need all ranges to be single-point lookups using full PK values. + // (Range scans, like "pk BETWEEN 10 and 20" or restrictions on PK prefix + // cannot be used) bool all_eq_ranges = true; KEY_MULTI_RANGE range; range_seq_t seq_it; @@ -15155,15 +15169,18 @@ ha_rows ha_rocksdb::multi_range_read_info_const(uint keyno, RANGE_SEQ_IF *seq, all_eq_ranges = false; break; } + if (table->in_use->killed) return HA_POS_ERROR; } if (all_eq_ranges) { + // Indicate that we will use Mutlit-Get MRR *flags &= ~HA_MRR_USE_DEFAULT_IMPL; *flags |= HA_MRR_SUPPORT_SORTED; *bufsz = mrr_get_length_per_rec() * res * 1.1 + 1; } } else { - // Secondary keys are supported if the scan is non-index_only + // For scans on secondary keys, we use MultiGet when we read the PK values. + // We only need PK values when the scan is non-index-only. if (!(*flags & HA_MRR_INDEX_ONLY)) { *flags &= ~HA_MRR_SUPPORT_SORTED; // Non-sorted mode *flags &= ~HA_MRR_USE_DEFAULT_IMPL; @@ -15194,7 +15211,6 @@ ha_rows ha_rocksdb::multi_range_read_info(uint keyno, uint n_ranges, uint keys, } if (keyno != table->s->primary_key && !(*flags & HA_MRR_INDEX_ONLY)) { - // Secondary key mode *flags &= ~HA_MRR_USE_DEFAULT_IMPL; *flags &= ~HA_MRR_SUPPORT_SORTED; // Non-sorted mode } @@ -15202,17 +15218,23 @@ ha_rows ha_rocksdb::multi_range_read_info(uint keyno, uint n_ranges, uint keys, return 0; // "0" means ok, despite the ha_rows return type. } -/* - The source of rowids for the MRR scan. -*/ + +// +// Source of Rowids for the MRR scan +// class Mrr_rowid_source { public: - // This will get the next rowid tuple. In on-disk format. + // Get the next rowid, in the on-disk mem-comparable form. Also, get the + // "range pointer" associated with the rowid (it is returned in *range_ptr). virtual int get_next_rowid(uchar *buf, char **range_ptr) = 0 ; virtual bool eof() = 0; virtual ~Mrr_rowid_source() {} }; + +// +// Rowid source that produces rowids by enumerating a seqence of ranges +// class Mrr_pk_scan_rowid_source : public Mrr_rowid_source { range_seq_t mrr_seq_it; bool mrr_ranges_eof; // true means we've got eof when enumerating the ranges. @@ -15247,6 +15269,11 @@ class Mrr_pk_scan_rowid_source : public Mrr_rowid_source { virtual bool eof() override { return mrr_ranges_eof; } }; + +// +// Rowid source that produces rowids by doing an index-only scan on a +// secondary index and returning rowids from the index records +// class Mrr_sec_key_rowid_source : public Mrr_rowid_source { ha_rocksdb *self; int got_err; @@ -15256,7 +15283,7 @@ class Mrr_sec_key_rowid_source : public Mrr_rowid_source { int init(RANGE_SEQ_IF *seq, void *seq_init_param, uint n_ranges, uint mode) { - self->m_keyread_only = true; // TODO: is this ugly or fine? + self->m_keyread_only = true; self->mrr_enabled_keyread = true; return self->handler::multi_range_read_init(seq, seq_init_param, n_ranges, mode, nullptr); @@ -15277,10 +15304,7 @@ class Mrr_sec_key_rowid_source : public Mrr_rowid_source { }; -/** - * Multi Range Read interface, DS-MRR calls - */ - +// Initialize an MRR scan int ha_rocksdb::multi_range_read_init(RANGE_SEQ_IF *seq, void *seq_init_param, uint n_ranges, uint mode, HANDLER_BUFFER *buf) { @@ -15315,18 +15339,22 @@ int ha_rocksdb::multi_range_read_init(RANGE_SEQ_IF *seq, void *seq_init_param, if (active_index == table->s->primary_key) { mrr_rowid_reader = new Mrr_pk_scan_rowid_source(this, seq_init_param, n_ranges, mode); - mrr_n_rowids = n_ranges; } else { auto reader = new Mrr_sec_key_rowid_source(this); reader->init(seq, seq_init_param, n_ranges, mode); mrr_rowid_reader = reader; - mrr_n_rowids = SSIZE_MAX-1; // TODO: get rid of this } + // note: here, we must NOT return HA_ERR_END_OF_FILE even if we know there + // are no matches. We should return 0 here and return HA_ERR_END_OF_FILE + // from the first multi_range_read_next() call. + res = mrr_fill_buffer(); return res; } +// Return the amount of buffer space that MRR scan requires for each record +// returned uint ha_rocksdb::mrr_get_length_per_rec() { return sizeof(rocksdb::Slice) + sizeof(rocksdb::Status) + sizeof(rocksdb::PinnableSlice) + @@ -15335,80 +15363,115 @@ uint ha_rocksdb::mrr_get_length_per_rec() { } +template <typename T> void align_ptr(char **p) { + if (((size_t)p) % alignof(T)) { + *p += alignof(T) - ((size_t)p) % alignof(T); + } +} + +/* + We've got a buffer in mrr_buf, and in order to call RocksDB's MultiGet, we + need to use this space to construct several arrays of the same size N: + + rocksdb::Slice[N] - lookup keys + rocksdb::Status[N] - return statuses + rocksdb::PinnableSlice[N] - return rows (*) + char*[N] - "ptr" value of KEY_MULTI_RANGE. This tells the + SQL layer which lookup key the returned record + matches with (**) + {PK lookup value}[N] - The rowid (Primary Key) to lookup. The + corresponding rocksdb::Slice object points to + this key. + + (*) The memory for rows is allocated somewhere inside RocksDB, there's no + way to make it use the user-supplied buffer. + (**) The engine could specify HA_MRR_NO_ASSOCIATION which would mean "we + cannot tell which key the returned records match" we don't do this. + + The PK lookup value is in mem-comparable encoding. It may have variable + length (this is the case when table's PRIMARY KEY has VARCHAR() columns). + Currently, we optimize for fixed-size primary keys and consume + m_pk_descr->max_storage_fmt_length() bytes for each lookup value. One can + develop a solution for variable-length PKs but this is not a priority. + + Note that the buffer may be much larger than necessary. For range scans, + @@rnd_buffer_size=256K is passed, even if there will be only a few lookup + values. +*/ + int ha_rocksdb::mrr_fill_buffer() { mrr_free_rows(); mrr_read_index = 0; - // Assume mrr_buf.buffer is aligned. - // Assume mrr_buf.buffer_end is aligned. - // This should agree with the code in mrr_get_length_per_rec(): ssize_t element_size = sizeof(rocksdb::Slice) + sizeof(rocksdb::Status) + sizeof(rocksdb::PinnableSlice) + sizeof(char *) + // this for KEY_MULTI_RANGE::ptr m_pk_descr->max_storage_fmt_length(); - // We can fit into the buffer this many elements: + // The buffer has space for this many elements: ssize_t n_elements = (mrr_buf.buffer_end - mrr_buf.buffer) / element_size; - // The "+1" is there to: - // - try to use a bit more space but get finished in one sweep (and avoid - // zero-sized second sweep) - // - for safety: we don't want 0-sized buffers - n_elements = std::min(n_elements, (ssize_t)mrr_n_rowids + 1); - if (n_elements < 1) { DBUG_ASSERT(0); return HA_ERR_INTERNAL_ERROR; // error } - // TODO: why are we allocating/de-allocating every time buffer is refilled? + char *buf = (char *)mrr_buf.buffer; - mrr_keys = new (buf) rocksdb::Slice[n_elements]; + + align_ptr<rocksdb::Slice>(&buf); + mrr_keys = (rocksdb::Slice*)buf; buf += sizeof(rocksdb::Slice) * n_elements; - mrr_statuses = new (buf) rocksdb::Status[n_elements]; + align_ptr<rocksdb::Status>(&buf); + mrr_statuses = (rocksdb::Status*)buf; buf += sizeof(rocksdb::Status) * n_elements; - mrr_values = new (buf) rocksdb::PinnableSlice[n_elements]; + align_ptr<rocksdb::PinnableSlice>(&buf); + mrr_values = (rocksdb::PinnableSlice*)buf; buf += sizeof(rocksdb::PinnableSlice) * n_elements; + align_ptr<char*>(&buf); mrr_range_ptrs = (char **)buf; buf += sizeof(char *) * n_elements; - ssize_t elem = -1; + if (buf + m_pk_descr->max_storage_fmt_length() >= (char*)mrr_buf.buffer_end) { + // a VERY unlikely scenario: we were given a really small buffer, + // (probably for just one rowid), and also we had to use some bytes for + // alignment. As a result, there's no buffer space left to hold even one + // rowid. Return an error immediately to avoid looping. + DBUG_ASSERT(0); + return HA_ERR_INTERNAL_ERROR; // error + } + + ssize_t elem = 0; + + mrr_n_elements = elem; int key_size; char *range_ptr; while ((key_size = mrr_rowid_reader->get_next_rowid((uchar*)buf, &range_ptr)) > 0 ) { DEBUG_SYNC(table->in_use, "rocksdb.mrr_fill_buffer.loop"); - if (table->in_use->killed) { - return HA_ERR_QUERY_INTERRUPTED; - } + if (table->in_use->killed) return HA_ERR_QUERY_INTERRUPTED; - elem++; - mrr_keys[elem] = rocksdb::Slice(buf, key_size); + new (&mrr_keys[elem]) rocksdb::Slice(buf, key_size); + new (&mrr_statuses[elem]) rocksdb::Status; + new (&mrr_values[elem]) rocksdb::PinnableSlice; mrr_range_ptrs[elem] = range_ptr; buf += key_size; - if (elem == n_elements - 1) { - // the arrays are full. bail out + elem++; + mrr_n_elements= elem; + + if ((elem == n_elements) || + (buf + m_pk_descr->max_storage_fmt_length() >= (char*)mrr_buf.buffer_end)) { + // No more buffer space break; } } - // now, mrr_keys[elem] holds the last valid element (except when elem==-1) - - mrr_n_elements = elem + 1; - - mrr_n_rowids -= mrr_n_elements; - if (mrr_n_rowids < 0) { - // a kind of "default batch size". This would be used when we were doing a - // clustered PK scan and ran over the range count - // (TODO: avoid array-based new[] and get rid of this altogether) - mrr_n_rowids = 2000; - } - if (mrr_n_elements == 0) return 0; // nothing to scan + if (mrr_n_elements == 0) return HA_ERR_END_OF_FILE; // nothing to scan Rdb_transaction *const tx = get_or_create_tx(table->in_use); @@ -15431,7 +15494,12 @@ void ha_rocksdb::mrr_free() { } void ha_rocksdb::mrr_free_rows() { - for (ssize_t i = 0; i < mrr_n_elements; i++) mrr_values[i].Reset(); + for (ssize_t i = 0; i < mrr_n_elements; i++) { + mrr_values[i].Reset(); + mrr_values[i].~PinnableSlice(); + mrr_statuses[i].~Status(); + // no need to free mrr_keys + } mrr_n_elements = 0; // We can't rely on the data from HANDLER_BUFFER once the scan is over, so: mrr_values = nullptr; @@ -15449,16 +15517,15 @@ int ha_rocksdb::multi_range_read_next(char **range_info) { mrr_free_rows(); return HA_ERR_END_OF_FILE; } - int res; + if (table->in_use->killed) return HA_ERR_QUERY_INTERRUPTED; + + int res; if ((res = mrr_fill_buffer())) { + if (res == HA_ERR_END_OF_FILE) + table->status = STATUS_NOT_FOUND; return res; } - - if (!mrr_n_elements) { - table->status = STATUS_NOT_FOUND; // not sure if this is necessary? - return HA_ERR_END_OF_FILE; - } } // Skip the "is not found" errors if (mrr_statuses[mrr_read_index].ok()) break; diff --git a/storage/rocksdb/ha_rocksdb.h b/storage/rocksdb/ha_rocksdb.h index c531b7a0340..6d3fa75e3fa 100644 --- a/storage/rocksdb/ha_rocksdb.h +++ b/storage/rocksdb/ha_rocksdb.h @@ -693,10 +693,6 @@ class ha_rocksdb : public my_core::handler { // if true, MRR code has enabled keyread (and should disable it back) bool mrr_enabled_keyread; - // Expected number of rowids that are left to scan. - // This number is used to avoid allocating huge arrays in mrr_fill_buffer - ssize_t mrr_n_rowids; - int mrr_fill_buffer(); void mrr_free_rows(); void mrr_free();

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[Commits] MDEV-20591 Wrong Number of rows in mysqlbinlog output
by Sachin Setiya 14 Sep '19

14 Sep '19

commit 211b7884ae572c87754a080b26858d2901006804 Author: Sachin <sachin.setiya(a)mariadb.com> Date: Sat Sep 14 12:53:36 2019 +0530 MDEV-20591 Wrong Number of rows in mysqlbinlog output calc_field_event_length should accurately calculate the size of BLOB type fields, Instead of returning just the bytes taken by length it should return length bytes + actual length. diff --git a/mysql-test/suite/binlog/r/binlog_mysqlbinlog_row.result b/mysql-test/suite/binlog/r/binlog_mysqlbinlog_row.result index 2af8b805be8..0cc1805eadc 100644 --- a/mysql-test/suite/binlog/r/binlog_mysqlbinlog_row.result +++ b/mysql-test/suite/binlog/r/binlog_mysqlbinlog_row.result @@ -327,6 +327,14 @@ INSERT INTO t2 SET a=1; INSERT INTO t2 SET b=1; UPDATE t1, t2 SET t1.a=10, t2.a=20; DROP TABLE t1,t2; +# +# MDEV-20591 Wrong Number of rows in mysqlbinlog output. +# +CREATE TABLE t1(c_char_utf8 CHAR(10) , +c_varchar_utf8 char(10) , +c_text_utf8 blob ); +INSERT into t1 values("B", "B", REPEAT("#", 2000)); +drop table t1; flush logs; INSERT INTO t1dec102 VALUES (-999.99); INSERT INTO t1dec102 VALUES (0); @@ -5274,6 +5282,47 @@ SET TIMESTAMP=1000000000/*!*/; DROP TABLE `t1`,`t2` /* generated by server */ /*!*/; # at # +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX GTID 0-1-317 ddl +/*!100001 SET @@session.gtid_seq_no=317*//*!*/; +# at # +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 +SET TIMESTAMP=1000000000/*!*/; +CREATE TABLE t1(c_char_utf8 CHAR(10) , +c_varchar_utf8 char(10) , +c_text_utf8 blob ) +/*!*/; +# at # +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX GTID 0-1-318 +/*!100001 SET @@session.gtid_seq_no=318*//*!*/; +BEGIN +/*!*/; +# at # +# at # +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Annotate_rows: +#Q> INSERT into t1 values("B", "B", REPEAT("#", 2000)) +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Table_map: `test`.`t1` mapped to number # +# at # +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Write_rows: table id # flags: STMT_END_F +### INSERT INTO `test`.`t1` +### SET +### @1='B' /* STRING(10) meta=65034 nullable=1 is_null=0 */ +### @2='B' /* STRING(10) meta=65034 nullable=1 is_null=0 */ +### @3='################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################' /* BLOB/TEXT meta=2 nullable=1 is_null=0 */ +# Number of rows: 1 +# at # +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 +SET TIMESTAMP=1000000000/*!*/; +COMMIT +/*!*/; +# at # +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX GTID 0-1-319 ddl +/*!100001 SET @@session.gtid_seq_no=319*//*!*/; +# at # +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 +SET TIMESTAMP=1000000000/*!*/; +DROP TABLE `t1` /* generated by server */ +/*!*/; +# at # #010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Rotate to master-bin.000002 pos: 4 DELIMITER ; # End of log file @@ -5287,17 +5336,17 @@ DELIMITER /*!*/; # at # #010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Start: binlog v 4, server v #.##.## created 010909 4:46:40 # at # -#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Gtid list [0-1-316] +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Gtid list [0-1-319] # at # #010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Binlog checkpoint master-bin.000001 # at # #010909 4:46:40 server id 1 end_log_pos # CRC32 XXX Binlog checkpoint master-bin.000002 # at # -#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX GTID 0-1-317 +#010909 4:46:40 server id 1 end_log_pos # CRC32 XXX GTID 0-1-320 /*!100101 SET @@session.skip_parallel_replication=0*//*!*/; /*!100001 SET @@session.gtid_domain_id=0*//*!*/; /*!100001 SET @@session.server_id=1*//*!*/; -/*!100001 SET @@session.gtid_seq_no=317*//*!*/; +/*!100001 SET @@session.gtid_seq_no=320*//*!*/; BEGIN /*!*/; # at # diff --git a/mysql-test/suite/binlog/t/binlog_mysqlbinlog_row.test b/mysql-test/suite/binlog/t/binlog_mysqlbinlog_row.test index 3146330f0cd..add977bf07a 100644 --- a/mysql-test/suite/binlog/t/binlog_mysqlbinlog_row.test +++ b/mysql-test/suite/binlog/t/binlog_mysqlbinlog_row.test @@ -438,6 +438,18 @@ INSERT INTO t2 SET b=1; UPDATE t1, t2 SET t1.a=10, t2.a=20; DROP TABLE t1,t2; +--echo # +--echo # MDEV-20591 Wrong Number of rows in mysqlbinlog output. +--echo # + +CREATE TABLE t1(c_char_utf8 CHAR(10) , + c_varchar_utf8 char(10) , + c_text_utf8 blob ); + +INSERT into t1 values("B", "B", REPEAT("#", 2000)); + +drop table t1; + flush logs; let $MYSQLD_DATADIR= `select @@datadir`; @@ -462,3 +474,4 @@ flush logs; --replace_regex /SQL_LOAD_MB-[0-9]-[0-9]/SQL_LOAD_MB-#-#/ /exec_time=[0-9]*/exec_time=#/ /end_log_pos [0-9]*/end_log_pos #/ /# at [0-9]*/# at #/ /thread_id=[0-9]*/thread_id=#/ /table id [0-9]*/table id #/ /mapped to number [0-9]*/mapped to number #/ /server v [^ ]*/server v #.##.##/ /((a)[0-9]*=[0-9]*[.][0-9]{1,3})[0-9e+-]*[^ ]*(.*(FLOAT|DOUBLE).*[*].)/\1...\2/ /CRC32 0x[0-9a-f]*/CRC32 XXX/ --error 1 --exec $MYSQL_BINLOG --base64-output=decode-rows -v -v $MYSQLD_DATADIR/master-bin.000002 2>&1 + diff --git a/sql/log_event.cc b/sql/log_event.cc index ce4d57329c7..369e9229d03 100644 --- a/sql/log_event.cc +++ b/sql/log_event.cc @@ -3423,7 +3423,16 @@ static size_t calc_field_event_length(const uchar *ptr, uint type, uint meta) case MYSQL_TYPE_SET: return meta & 0xFF; case MYSQL_TYPE_BLOB: - return (meta <= 4 ? meta : 0); + if (meta > 4 ) + return 0; + if (meta == 1) + return *ptr + 1; + if (meta == 2) + return uint2korr(ptr) + 2; + if (meta == 3) + return uint3korr(ptr) + 3; + if (meta == 4) + return uint4korr(ptr) + 4; case MYSQL_TYPE_VARCHAR: case MYSQL_TYPE_VAR_STRING: length= meta; -- Regards Sachin Setiya Software Engineer at MariaDB

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[Commits] ae2b88f: Adjusted test results after the change of a test case
by IgorBabaev 14 Sep '19

14 Sep '19

revision-id: ae2b88ff3f94253921fed5c48422adeebe7e623d (mariadb-10.1.41-38-gae2b88f) parent(s): 0954bcb6639af47a8b57eb426aee9bba4036e5f1 author: Igor Babaev committer: Igor Babaev timestamp: 2019-09-13 21:10:52 -0700 message: Adjusted test results after the change of a test case --- mysql-test/r/selectivity.result | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mysql-test/r/selectivity.result b/mysql-test/r/selectivity.result index d8b2d46..d0bbb46 100644 --- a/mysql-test/r/selectivity.result +++ b/mysql-test/r/selectivity.result @@ -1716,7 +1716,7 @@ b INT NOT NULL, c char(100), KEY (b, c), KEY (b, a, c) -) +) ENGINE=MyISAM DEFAULT CHARSET = utf8; INSERT INTO t1 VALUES (1, 1, 1),

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[Commits] 0954bcb: Post fix after the patch for MDEV-20576.
by IgorBabaev 13 Sep '19

13 Sep '19

revision-id: 0954bcb6639af47a8b57eb426aee9bba4036e5f1 (mariadb-10.1.41-37-g0954bcb) parent(s): deb9121fdf2152752346c767321e6e01aa5d6c69 author: Igor Babaev committer: Igor Babaev timestamp: 2019-09-13 15:09:28 -0700 message: Post fix after the patch for MDEV-20576. Adjusted test results. --- mysql-test/r/selectivity_innodb.result | 20 ++++++++++---------- mysql-test/t/selectivity.test | 2 +- storage/tokudb/mysql-test/tokudb/r/mvcc-29.result | 4 ++-- storage/tokudb/mysql-test/tokudb/r/mvcc-30.result | 4 ++-- storage/tokudb/mysql-test/tokudb/r/mvcc-31.result | 4 ++-- 5 files changed, 17 insertions(+), 17 deletions(-) diff --git a/mysql-test/r/selectivity_innodb.result b/mysql-test/r/selectivity_innodb.result index 56a7900..719156a 100644 --- a/mysql-test/r/selectivity_innodb.result +++ b/mysql-test/r/selectivity_innodb.result @@ -1726,7 +1726,7 @@ b INT NOT NULL, c char(100), KEY (b, c), KEY (b, a, c) -) +) ENGINE=MyISAM DEFAULT CHARSET = utf8; INSERT INTO t1 VALUES (1, 1, 1), @@ -1749,18 +1749,18 @@ INSERT INTO t1 SELECT a + 1280, b, c FROM t1 LIMIT 80; EXPLAIN SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref b,b_2 b_2 4 const 207 Using where; Using index; Using filesort +1 SIMPLE t1 range b,b_2 b 4 NULL 226 Using where SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9; a 2071 -81 -71 -61 -51 -41 -31 -21 -11 +2061 +2051 +2041 +2031 +2021 +2011 +2001 +1991 set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; DROP TABLE t1; # End of 10.1 tests diff --git a/mysql-test/t/selectivity.test b/mysql-test/t/selectivity.test index 6e93e60..0deacc3 100644 --- a/mysql-test/t/selectivity.test +++ b/mysql-test/t/selectivity.test @@ -1174,7 +1174,7 @@ CREATE TABLE t1 ( c char(100), KEY (b, c), KEY (b, a, c) -) +) ENGINE=MyISAM DEFAULT CHARSET = utf8; INSERT INTO t1 VALUES diff --git a/storage/tokudb/mysql-test/tokudb/r/mvcc-29.result b/storage/tokudb/mysql-test/tokudb/r/mvcc-29.result index 5c02bab..b532eab 100644 --- a/storage/tokudb/mysql-test/tokudb/r/mvcc-29.result +++ b/storage/tokudb/mysql-test/tokudb/r/mvcc-29.result @@ -26,7 +26,7 @@ delete from foo where a > 5; # number of rows should be 9 explain select * from foo where a > 1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 9 Using where +1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 5 Using where # should have just 4 values select * from foo where a > 1; a b @@ -37,7 +37,7 @@ a b # number of rows should be 9 explain select * from foo where a > 1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 9 Using where +1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 5 Using where # 9 values select * From foo where a > 1; a b diff --git a/storage/tokudb/mysql-test/tokudb/r/mvcc-30.result b/storage/tokudb/mysql-test/tokudb/r/mvcc-30.result index c57787f..f293fe9 100644 --- a/storage/tokudb/mysql-test/tokudb/r/mvcc-30.result +++ b/storage/tokudb/mysql-test/tokudb/r/mvcc-30.result @@ -26,7 +26,7 @@ delete from foo where a < 10; # number of rows should be 9 explain select * from foo where a < 50; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 9 Using where +1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 5 Using where # should have just 4 values select * from foo where a < 50; a b @@ -37,7 +37,7 @@ a b # number of rows should be 9 explain select * from foo where a < 50; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 9 Using where +1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 5 Using where # 9 values select * From foo where a < 50; a b diff --git a/storage/tokudb/mysql-test/tokudb/r/mvcc-31.result b/storage/tokudb/mysql-test/tokudb/r/mvcc-31.result index ebc5ae49..cb55f67 100644 --- a/storage/tokudb/mysql-test/tokudb/r/mvcc-31.result +++ b/storage/tokudb/mysql-test/tokudb/r/mvcc-31.result @@ -26,7 +26,7 @@ delete from foo where a = 2 or a = 4 or a = 10 or a = 30 or a = 50; # number of rows should be 8 explain select * from foo where a > 1 and a < 50; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 8 Using where +1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 5 Using where # should have just 4 values select * from foo where a > 1 and a < 50; a b @@ -37,7 +37,7 @@ a b # number of rows should be 8 explain select * from foo where a > 1 and a < 50; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 8 Using where +1 SIMPLE foo range PRIMARY PRIMARY 4 NULL 5 Using where # 8 values select * from foo where a > 1 and a < 50; a b

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[Commits] 51d01dc: MDEV-20576 A new assertion added to check validity of calculated
by IgorBabaev 13 Sep '19

13 Sep '19

revision-id: 51d01dc578f3d3ab0ccf0dda72bd500c80484766 (mariadb-10.1.41-35-g51d01dc) parent(s): 031c695b8c865e5eb6c4c09ced404ae08f98430f author: Igor Babaev committer: Igor Babaev timestamp: 2019-09-12 23:00:49 -0700 message: MDEV-20576 A new assertion added to check validity of calculated selectivity values fails After having set the assertion that checks validity of selectivity values returned by the function table_cond_selectivity() a test case from order_by.tesst failed. The failure occurred because range optimizer could return as an estimate of the cardinality of the ranges built for an index a number exceeding the total number of records in the table. The second bug is more subtle. It may happen when there are several indexes with same prefix defined on the first joined table t accessed by a constant ref access. In this case the range optimizer estimates the number of accessed records of t for each usable index and these estimates can be different. Only the first of these estimates is taken into account when the selectivity of the ref access is calculated. However the optimizer later can choose a different index that provides a different estimate. The function table_condition_selectivity() could use this estimate to discount the selectivity of the ref access. This could lead to an selectivity value returned by this function that was greater that 1. --- mysql-test/r/innodb_icp.result | 4 +- mysql-test/r/range_vs_index_merge.result | 2 +- mysql-test/r/range_vs_index_merge_innodb.result | 2 +- mysql-test/r/selectivity.result | 85 +++++++++++++++++++++++++ mysql-test/r/selectivity_innodb.result | 85 +++++++++++++++++++++++++ mysql-test/t/selectivity.test | 81 +++++++++++++++++++++++ sql/opt_range.cc | 10 +++ sql/sql_select.cc | 15 +++++ 8 files changed, 280 insertions(+), 4 deletions(-) diff --git a/mysql-test/r/innodb_icp.result b/mysql-test/r/innodb_icp.result index a5215bf..0c95f31 100644 --- a/mysql-test/r/innodb_icp.result +++ b/mysql-test/r/innodb_icp.result @@ -679,7 +679,7 @@ EXPLAIN SELECT t1.b, t1.c FROM t1, t2 WHERE t1.a = t2.a AND t1.b != 0 HAVING t1.c != 5 ORDER BY t1.c; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 2 Using where; Using filesort +1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 1 Using where; Using filesort 1 SIMPLE t2 ref a a 515 test.t1.a 1 Using where SELECT t1.b, t1.c FROM t1, t2 WHERE t1.a = t2.a AND t1.b != 0 HAVING t1.c != 5 ORDER BY t1.c; @@ -690,7 +690,7 @@ EXPLAIN SELECT t1.b, t1.c FROM t1, t2 WHERE t1.a = t2.a AND t1.b != 0 HAVING t1.c != 5 ORDER BY t1.c; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 2 Using where; Using filesort +1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 1 Using where; Using filesort 1 SIMPLE t2 ref a a 515 test.t1.a 1 Using where SELECT t1.b, t1.c FROM t1, t2 WHERE t1.a = t2.a AND t1.b != 0 HAVING t1.c != 5 ORDER BY t1.c; diff --git a/mysql-test/r/range_vs_index_merge.result b/mysql-test/r/range_vs_index_merge.result index bc46a4f..4f3c36b 100644 --- a/mysql-test/r/range_vs_index_merge.result +++ b/mysql-test/r/range_vs_index_merge.result @@ -1795,7 +1795,7 @@ SELECT * FROM t1 FORCE KEY (state,capital) WHERE ( state = 'Alabama' OR state >= 'Colorado' ) AND id != 9 OR ( capital >= 'Topeka' OR state = 'Kansas' ) AND state != 'Texas'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range state,capital state 71 NULL 12 Using index condition; Using where +1 SIMPLE t1 range state,capital state 71 NULL 8 Using index condition; Using where SELECT * FROM t1 FORCE KEY (state,capital) WHERE ( state = 'Alabama' OR state >= 'Colorado' ) AND id != 9 OR ( capital >= 'Topeka' OR state = 'Kansas' ) AND state != 'Texas'; diff --git a/mysql-test/r/range_vs_index_merge_innodb.result b/mysql-test/r/range_vs_index_merge_innodb.result index a6ec200..08b7df6 100644 --- a/mysql-test/r/range_vs_index_merge_innodb.result +++ b/mysql-test/r/range_vs_index_merge_innodb.result @@ -1796,7 +1796,7 @@ SELECT * FROM t1 FORCE KEY (state,capital) WHERE ( state = 'Alabama' OR state >= 'Colorado' ) AND id != 9 OR ( capital >= 'Topeka' OR state = 'Kansas' ) AND state != 'Texas'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range state,capital state 71 NULL 10 Using index condition; Using where +1 SIMPLE t1 range state,capital state 71 NULL 8 Using index condition; Using where SELECT * FROM t1 FORCE KEY (state,capital) WHERE ( state = 'Alabama' OR state >= 'Colorado' ) AND id != 9 OR ( capital >= 'Topeka' OR state = 'Kansas' ) AND state != 'Texas'; diff --git a/mysql-test/r/selectivity.result b/mysql-test/r/selectivity.result index 3f5db42..d8b2d46 100644 --- a/mysql-test/r/selectivity.result +++ b/mysql-test/r/selectivity.result @@ -1668,4 +1668,89 @@ Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` drop table t1; set use_stat_tables= @save_use_stat_tables; set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; +# +# MDEV-20576: failing assertion DBUG_ASSERT(0.0 < sel && sel <= 1) +# +set @@optimizer_use_condition_selectivity=2; +set names utf8; +CREATE DATABASE world; +use world; +CREATE TABLE Country ( +Code char(3) NOT NULL default '', +Name char(52) NOT NULL default '', +SurfaceArea float(10,2) NOT NULL default '0.00', +Population int(11) NOT NULL default '0', +Capital int(11) default NULL, +PRIMARY KEY (Code), +UNIQUE INDEX (Name) +); +CREATE TABLE City ( +ID int(11) NOT NULL auto_increment, +Name char(35) NOT NULL default '', +Country char(3) NOT NULL default '', +Population int(11) NOT NULL default '0', +PRIMARY KEY (ID), +INDEX (Population), +INDEX (Country) +); +CREATE TABLE CountryLanguage ( +Country char(3) NOT NULL default '', +Language char(30) NOT NULL default '', +Percentage float(3,1) NOT NULL default '0.0', +PRIMARY KEY (Country, Language), +INDEX (Percentage) +); +CREATE INDEX Name ON City(Name); +CREATE INDEX CountryPopulation ON City(Country,Population); +CREATE INDEX CountryName ON City(Country,Name); +set @@optimizer_use_condition_selectivity=2; +EXPLAIN +SELECT * FROM City WHERE Country='FIN'; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE City ref Country,CountryPopulation,CountryName CountryName 3 const 5 Using index condition +DROP DATABASE world; +use test; +CREATE TABLE t1 ( +a INT, +b INT NOT NULL, +c char(100), +KEY (b, c), +KEY (b, a, c) +) +DEFAULT CHARSET = utf8; +INSERT INTO t1 VALUES +(1, 1, 1), +(2, 2, 2), +(3, 3, 3), +(4, 4, 4), +(5, 5, 5), +(6, 6, 6), +(7, 7, 7), +(8, 8, 8), +(9, 9, 9); +INSERT INTO t1 SELECT a + 10, b, c FROM t1; +INSERT INTO t1 SELECT a + 20, b, c FROM t1; +INSERT INTO t1 SELECT a + 40, b, c FROM t1; +INSERT INTO t1 SELECT a + 80, b, c FROM t1; +INSERT INTO t1 SELECT a + 160, b, c FROM t1; +INSERT INTO t1 SELECT a + 320, b, c FROM t1; +INSERT INTO t1 SELECT a + 640, b, c FROM t1; +INSERT INTO t1 SELECT a + 1280, b, c FROM t1 LIMIT 80; +EXPLAIN +SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 range b,b_2 b 4 NULL 226 Using where +SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9; +a +2071 +2061 +2051 +2041 +2031 +2021 +2011 +2001 +1991 +set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; +DROP TABLE t1; # End of 10.1 tests diff --git a/mysql-test/r/selectivity_innodb.result b/mysql-test/r/selectivity_innodb.result index 1d73c2f..56a7900 100644 --- a/mysql-test/r/selectivity_innodb.result +++ b/mysql-test/r/selectivity_innodb.result @@ -1678,6 +1678,91 @@ Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` drop table t1; set use_stat_tables= @save_use_stat_tables; set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; +# +# MDEV-20576: failing assertion DBUG_ASSERT(0.0 < sel && sel <= 1) +# +set @@optimizer_use_condition_selectivity=2; +set names utf8; +CREATE DATABASE world; +use world; +CREATE TABLE Country ( +Code char(3) NOT NULL default '', +Name char(52) NOT NULL default '', +SurfaceArea float(10,2) NOT NULL default '0.00', +Population int(11) NOT NULL default '0', +Capital int(11) default NULL, +PRIMARY KEY (Code), +UNIQUE INDEX (Name) +); +CREATE TABLE City ( +ID int(11) NOT NULL auto_increment, +Name char(35) NOT NULL default '', +Country char(3) NOT NULL default '', +Population int(11) NOT NULL default '0', +PRIMARY KEY (ID), +INDEX (Population), +INDEX (Country) +); +CREATE TABLE CountryLanguage ( +Country char(3) NOT NULL default '', +Language char(30) NOT NULL default '', +Percentage float(3,1) NOT NULL default '0.0', +PRIMARY KEY (Country, Language), +INDEX (Percentage) +); +CREATE INDEX Name ON City(Name); +CREATE INDEX CountryPopulation ON City(Country,Population); +CREATE INDEX CountryName ON City(Country,Name); +set @@optimizer_use_condition_selectivity=2; +EXPLAIN +SELECT * FROM City WHERE Country='FIN'; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE City ref Country,CountryPopulation,CountryName Country 3 const 7 Using index condition +DROP DATABASE world; +use test; +CREATE TABLE t1 ( +a INT, +b INT NOT NULL, +c char(100), +KEY (b, c), +KEY (b, a, c) +) +DEFAULT CHARSET = utf8; +INSERT INTO t1 VALUES +(1, 1, 1), +(2, 2, 2), +(3, 3, 3), +(4, 4, 4), +(5, 5, 5), +(6, 6, 6), +(7, 7, 7), +(8, 8, 8), +(9, 9, 9); +INSERT INTO t1 SELECT a + 10, b, c FROM t1; +INSERT INTO t1 SELECT a + 20, b, c FROM t1; +INSERT INTO t1 SELECT a + 40, b, c FROM t1; +INSERT INTO t1 SELECT a + 80, b, c FROM t1; +INSERT INTO t1 SELECT a + 160, b, c FROM t1; +INSERT INTO t1 SELECT a + 320, b, c FROM t1; +INSERT INTO t1 SELECT a + 640, b, c FROM t1; +INSERT INTO t1 SELECT a + 1280, b, c FROM t1 LIMIT 80; +EXPLAIN +SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ref b,b_2 b_2 4 const 207 Using where; Using index; Using filesort +SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9; +a +2071 +81 +71 +61 +51 +41 +31 +21 +11 +set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; +DROP TABLE t1; # End of 10.1 tests set optimizer_switch=@save_optimizer_switch_for_selectivity_test; set @tmp_ust= @@use_stat_tables; diff --git a/mysql-test/t/selectivity.test b/mysql-test/t/selectivity.test index f1c9d6b..6e93e60 100644 --- a/mysql-test/t/selectivity.test +++ b/mysql-test/t/selectivity.test @@ -1124,5 +1124,86 @@ drop table t1; set use_stat_tables= @save_use_stat_tables; set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; + +--echo # +--echo # MDEV-20576: failing assertion DBUG_ASSERT(0.0 < sel && sel <= 1) +--echo # + +set @@optimizer_use_condition_selectivity=2; + +set names utf8; + +CREATE DATABASE world; + +use world; + +--source include/world_schema.inc + +--disable_query_log +--disable_result_log +--disable_warnings +--source include/world.inc +--enable_warnings +--enable_result_log +--enable_query_log + +CREATE INDEX Name ON City(Name); +CREATE INDEX CountryPopulation ON City(Country,Population); +CREATE INDEX CountryName ON City(Country,Name); + +--disable_query_log +--disable_result_log +--disable_warnings +ANALYZE TABLE City; +--enable_warnings +--enable_result_log +--enable_query_log + +set @@optimizer_use_condition_selectivity=2; + +EXPLAIN +SELECT * FROM City WHERE Country='FIN'; + +DROP DATABASE world; + +use test; + +CREATE TABLE t1 ( + a INT, + b INT NOT NULL, + c char(100), + KEY (b, c), + KEY (b, a, c) +) +DEFAULT CHARSET = utf8; + +INSERT INTO t1 VALUES +(1, 1, 1), +(2, 2, 2), +(3, 3, 3), +(4, 4, 4), +(5, 5, 5), +(6, 6, 6), +(7, 7, 7), +(8, 8, 8), +(9, 9, 9); + +INSERT INTO t1 SELECT a + 10, b, c FROM t1; +INSERT INTO t1 SELECT a + 20, b, c FROM t1; +INSERT INTO t1 SELECT a + 40, b, c FROM t1; +INSERT INTO t1 SELECT a + 80, b, c FROM t1; +INSERT INTO t1 SELECT a + 160, b, c FROM t1; +INSERT INTO t1 SELECT a + 320, b, c FROM t1; +INSERT INTO t1 SELECT a + 640, b, c FROM t1; +INSERT INTO t1 SELECT a + 1280, b, c FROM t1 LIMIT 80; + +EXPLAIN +SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9; +SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9; + +set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; + +DROP TABLE t1; + --echo # End of 10.1 tests diff --git a/sql/opt_range.cc b/sql/opt_range.cc index e8421ad..45dad88 100644 --- a/sql/opt_range.cc +++ b/sql/opt_range.cc @@ -10179,6 +10179,16 @@ ha_rows check_quick_select(PARAM *param, uint idx, bool index_only, bufsize, mrr_flags, cost); if (rows != HA_POS_ERROR) { + ha_rows table_records= param->table->stat_records(); + if (rows > table_records) + { + /* + For any index the total number of records within all ranges + cannot be be bigger than the number of records in the table + */ + rows= table_records; + set_if_bigger(rows, 1); + } param->quick_rows[keynr]= rows; param->possible_keys.set_bit(keynr); if (update_tbl_stats) diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 5b96c15..c6e70c2 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -7643,7 +7643,19 @@ double table_cond_selectivity(JOIN *join, uint idx, JOIN_TAB *s, } keyparts++; } + /* + Here we discount selectivity of the constant range CR. To calculate + this selectivity we use elements from the quick_rows[] array. + If we have indexes i1,...,ik with the same prefix compatible + with CR any of the estimate quick_rows[i1], ... quick_rows[ik] could + be used for this calculation but here we don't know which one was + actually used. So sel could be greater than 1 and we have to cap it. + However if sel becomes greater than 2 then with high probability + something went wrong. + */ sel /= (double)table->quick_rows[key] / (double) table->stat_records(); + DBUG_ASSERT(0 < sel && sel <= 2.0); + set_if_smaller(sel, 1.0); used_range_selectivity= true; } } @@ -7691,6 +7703,7 @@ double table_cond_selectivity(JOIN *join, uint idx, JOIN_TAB *s, if (table->field[fldno]->cond_selectivity > 0) { sel /= table->field[fldno]->cond_selectivity; + DBUG_ASSERT(0 < sel && sel <= 2.0); set_if_smaller(sel, 1.0); } /* @@ -7748,6 +7761,7 @@ double table_cond_selectivity(JOIN *join, uint idx, JOIN_TAB *s, if (field->cond_selectivity > 0) { sel/= field->cond_selectivity; + DBUG_ASSERT(0 < sel && sel <= 2.0); set_if_smaller(sel, 1.0); } break; @@ -7759,6 +7773,7 @@ double table_cond_selectivity(JOIN *join, uint idx, JOIN_TAB *s, sel*= table_multi_eq_cond_selectivity(join, idx, s, rem_tables, keyparts, ref_keyuse_steps); + DBUG_ASSERT(0.0 < sel && sel <= 1.0); return sel; }

1 0

[Commits] c11e269: Fixed a typo in the patch for mdev-15777
by IgorBabaev 13 Sep '19

13 Sep '19

revision-id: c11e26946f1742f8fdb71aab7c6887983dfdaf3a (mariadb-10.4.4-325-gc11e269) parent(s): 61bbf39915476ba7f9abe5cb6f2ddd4f704b9fbd author: Igor Babaev committer: Igor Babaev timestamp: 2019-09-12 21:30:02 -0700 message: Fixed a typo in the patch for mdev-15777 --- sql/item_cmpfunc.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc index 71bf5f4..907480a 100644 --- a/sql/item_cmpfunc.cc +++ b/sql/item_cmpfunc.cc @@ -2096,7 +2096,7 @@ bool Item_func_between::find_not_null_fields(table_map allowed) return false; return args[0]->find_not_null_fields(allowed) || args[1]->find_not_null_fields(allowed) || - args[3]->find_not_null_fields(allowed); + args[2]->find_not_null_fields(allowed); }

1 0

[Commits] 1966b71bfb2: MDEV-20371: Invalid reads at plan refinement stage: join->positions...
by psergey 12 Sep '19

12 Sep '19

revision-id: 1966b71bfb250d551d53daf7f6606337900bbb0f (mariadb-10.4.7-64-g1966b71bfb2) parent(s): 5c5452a5a086a9584efb2255059da671fff6e484 author: Sergei Petrunia committer: Sergei Petrunia timestamp: 2019-09-12 19:29:07 +0300 message: MDEV-20371: Invalid reads at plan refinement stage: join->positions... (re-committing in 10.4) best_access_path() is called from two optimization phases: 1. Plan choice phase, in choose_plan(). Here, the join prefix being considered is in join->positions[] 2. Plan refinement stage, in fix_semijoin_strategies_for_picked_join_order Here, the join prefix is in join->best_positions[] It used to access join->positions[] from stage #2. This didnt cause any valgrind or asan failures (as join->positions[] has been written-to before) but the effect was similar to that of reading the random data: The join prefix we've picked (in join->best_positions) could have nothing in common with the join prefix that was last to be considered (in join->positions). --- sql/opt_subselect.cc | 26 +++++++++++++++++--------- sql/opt_subselect.h | 8 ++++++-- sql/sql_select.cc | 37 ++++++++++++++++++++++--------------- sql/sql_select.h | 9 ++++++++- 4 files changed, 53 insertions(+), 27 deletions(-) diff --git a/sql/opt_subselect.cc b/sql/opt_subselect.cc index c4cb9b81170..22367ef85e4 100644 --- a/sql/opt_subselect.cc +++ b/sql/opt_subselect.cc @@ -453,10 +453,6 @@ bool find_eq_ref_candidate(TABLE *table, table_map sj_inner_tables); static SJ_MATERIALIZATION_INFO * at_sjmat_pos(const JOIN *join, table_map remaining_tables, const JOIN_TAB *tab, uint idx, bool *loose_scan); -void best_access_path(JOIN *join, JOIN_TAB *s, - table_map remaining_tables, uint idx, - bool disable_jbuf, double record_count, - POSITION *pos, POSITION *loose_scan_pos); static Item *create_subq_in_equalities(THD *thd, SJ_MATERIALIZATION_INFO *sjm, Item_in_subselect *subq_pred); @@ -2804,6 +2800,14 @@ void advance_sj_state(JOIN *join, table_map remaining_tables, uint idx, &pos->dups_weedout_picker, NULL, }; + +#ifdef HAVE_valgrind + new (&pos->firstmatch_picker) Firstmatch_picker; + new (&pos->loosescan_picker) LooseScan_picker; + new (&pos->sjmat_picker) Sj_materialization_picker; + new (&pos->dups_weedout_picker) Duplicate_weedout_picker; +#endif + Json_writer_array trace_steps(join->thd, "semijoin_strategy_choice"); /* Update join->cur_sj_inner_tables (Used by FirstMatch in this function and @@ -3121,7 +3125,8 @@ bool Sj_materialization_picker::check_qep(JOIN *join, Json_writer_temp_disable trace_semijoin_mat_scan(thd); for (i= first_tab + mat_info->tables; i <= idx; i++) { - best_access_path(join, join->positions[i].table, rem_tables, i, + best_access_path(join, join->positions[i].table, rem_tables, + join->positions, i, disable_jbuf, prefix_rec_count, &curpos, &dummy); prefix_rec_count= COST_MULT(prefix_rec_count, curpos.records_read); prefix_cost= COST_ADD(prefix_cost, curpos.read_time); @@ -3790,7 +3795,8 @@ void fix_semijoin_strategies_for_picked_join_order(JOIN *join) Json_writer_object trace_one_table(thd); trace_one_table.add_table_name(join->best_positions[i].table); } - best_access_path(join, join->best_positions[i].table, rem_tables, i, + best_access_path(join, join->best_positions[i].table, rem_tables, + join->best_positions, i, FALSE, prefix_rec_count, join->best_positions + i, &dummy); prefix_rec_count *= join->best_positions[i].records_read; @@ -3830,8 +3836,9 @@ void fix_semijoin_strategies_for_picked_join_order(JOIN *join) } if (join->best_positions[idx].use_join_buffer) { - best_access_path(join, join->best_positions[idx].table, - rem_tables, idx, TRUE /* no jbuf */, + best_access_path(join, join->best_positions[idx].table, + rem_tables, join->best_positions, idx, + TRUE /* no jbuf */, record_count, join->best_positions + idx, &dummy); } record_count *= join->best_positions[idx].records_read; @@ -3869,7 +3876,8 @@ void fix_semijoin_strategies_for_picked_join_order(JOIN *join) if (join->best_positions[idx].use_join_buffer || (idx == first)) { best_access_path(join, join->best_positions[idx].table, - rem_tables, idx, TRUE /* no jbuf */, + rem_tables, join->best_positions, idx, + TRUE /* no jbuf */, record_count, join->best_positions + idx, &loose_scan_pos); if (idx==first) diff --git a/sql/opt_subselect.h b/sql/opt_subselect.h index 6210fc972c8..d1dd8e3e135 100644 --- a/sql/opt_subselect.h +++ b/sql/opt_subselect.h @@ -91,6 +91,7 @@ class Loose_scan_opt KEYUSE *best_loose_scan_start_key; uint best_max_loose_keypart; + table_map best_ref_depend_map; public: Loose_scan_opt(): @@ -252,13 +253,14 @@ class Loose_scan_opt best_loose_scan_records= records; best_max_loose_keypart= max_loose_keypart; best_loose_scan_start_key= start_key; + best_ref_depend_map= 0; } } } } void check_ref_access_part2(uint key, KEYUSE *start_key, double records, - double read_time) + double read_time, table_map ref_depend_map_arg) { if (part1_conds_met && read_time < best_loose_scan_cost) { @@ -268,6 +270,7 @@ class Loose_scan_opt best_loose_scan_records= records; best_max_loose_keypart= max_loose_keypart; best_loose_scan_start_key= start_key; + best_ref_depend_map= ref_depend_map_arg; } } @@ -283,6 +286,7 @@ class Loose_scan_opt best_loose_scan_records= rows2double(quick->records); best_max_loose_keypart= quick_max_loose_keypart; best_loose_scan_start_key= NULL; + best_ref_depend_map= 0; } } @@ -299,7 +303,7 @@ class Loose_scan_opt pos->use_join_buffer= FALSE; pos->table= tab; pos->range_rowid_filter_info= tab->range_rowid_filter_info; - // todo need ref_depend_map ? + pos->ref_depend_map= best_ref_depend_map; DBUG_PRINT("info", ("Produced a LooseScan plan, key %s, %s", tab->table->key_info[best_loose_scan_key].name.str, best_loose_scan_start_key? "(ref access)": diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 3dae58a78e2..641a398cbc6 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -107,10 +107,6 @@ static bool create_ref_for_key(JOIN *join, JOIN_TAB *j, KEYUSE *org_keyuse, static ha_rows get_quick_record_count(THD *thd, SQL_SELECT *select, TABLE *table, const key_map *keys,ha_rows limit); -void best_access_path(JOIN *join, JOIN_TAB *s, - table_map remaining_tables, uint idx, - bool disable_jbuf, double record_count, - POSITION *pos, POSITION *loose_scan_pos); static void optimize_straight_join(JOIN *join, table_map join_tables); static bool greedy_search(JOIN *join, table_map remaining_tables, uint depth, uint prune_level, @@ -5479,6 +5475,13 @@ make_join_statistics(JOIN *join, List<TABLE_LIST> &tables_list, { if (choose_plan(join, all_table_map & ~join->const_table_map)) goto error; + +#ifdef HAVE_valgrind + // JOIN::positions holds the current query plan. We've already + // made the plan choice, so we should only use JOIN::best_positions + for (uint k=join->const_tables; k < join->table_count; k++) + MEM_UNDEFINED(&join->positions[k], sizeof(join->positions[k])); +#endif } else { @@ -7178,6 +7181,7 @@ void best_access_path(JOIN *join, JOIN_TAB *s, table_map remaining_tables, + const POSITION *join_positions, uint idx, bool disable_jbuf, double record_count, @@ -7298,7 +7302,7 @@ best_access_path(JOIN *join, if (!keyuse->val->maybe_null || keyuse->null_rejecting) notnull_part|=keyuse->keypart_map; - double tmp2= prev_record_reads(join->positions, idx, + double tmp2= prev_record_reads(join_positions, idx, (found_ref | keyuse->used_tables)); if (tmp2 < best_prev_record_reads) { @@ -7340,7 +7344,7 @@ best_access_path(JOIN *join, Really, there should be records=0.0 (yes!) but 1.0 would be probably safer */ - tmp= prev_record_reads(join->positions, idx, found_ref); + tmp= prev_record_reads(join_positions, idx, found_ref); records= 1.0; type= JT_FT; trace_access_idx.add("access_type", join_type_str[type]) @@ -7369,7 +7373,7 @@ best_access_path(JOIN *join, type= JT_EQ_REF; trace_access_idx.add("access_type", join_type_str[type]) .add("index", keyinfo->name); - tmp = prev_record_reads(join->positions, idx, found_ref); + tmp = prev_record_reads(join_positions, idx, found_ref); records=1.0; } else @@ -7657,7 +7661,8 @@ best_access_path(JOIN *join, } tmp= COST_ADD(tmp, s->startup_cost); - loose_scan_opt.check_ref_access_part2(key, start_key, records, tmp); + loose_scan_opt.check_ref_access_part2(key, start_key, records, tmp, + found_ref); } /* not ft_key */ if (records < DBL_MAX) @@ -8447,7 +8452,8 @@ optimize_straight_join(JOIN *join, table_map join_tables) trace_one_table.add_table_name(s); } /* Find the best access method from 's' to the current partial plan */ - best_access_path(join, s, join_tables, idx, disable_jbuf, record_count, + best_access_path(join, s, join_tables, join->positions, idx, + disable_jbuf, record_count, position, &loose_scan_pos); /* compute the cost of the new plan extended with 's' */ @@ -9376,8 +9382,8 @@ best_extension_by_limited_search(JOIN *join, /* Find the best access method from 's' to the current partial plan */ POSITION loose_scan_pos; - best_access_path(join, s, remaining_tables, idx, disable_jbuf, - record_count, position, &loose_scan_pos); + best_access_path(join, s, remaining_tables, join->positions, idx, + disable_jbuf, record_count, position, &loose_scan_pos); /* Compute the cost of extending the plan with 's' */ current_record_count= COST_MULT(record_count, position->records_read); @@ -9781,11 +9787,11 @@ cache_record_length(JOIN *join,uint idx) */ double -prev_record_reads(POSITION *positions, uint idx, table_map found_ref) +prev_record_reads(const POSITION *positions, uint idx, table_map found_ref) { double found=1.0; - POSITION *pos_end= positions - 1; - for (POSITION *pos= positions + idx - 1; pos != pos_end; pos--) + const POSITION *pos_end= positions - 1; + for (const POSITION *pos= positions + idx - 1; pos != pos_end; pos--) { if (pos->table->table->map & found_ref) { @@ -16675,7 +16681,8 @@ void optimize_wo_join_buffering(JOIN *join, uint first_tab, uint last_tab, if ((i == first_tab && first_alt) || join->positions[i].use_join_buffer) { /* Find the best access method that would not use join buffering */ - best_access_path(join, rs, reopt_remaining_tables, i, + best_access_path(join, rs, reopt_remaining_tables, + join->positions, i, TRUE, rec_count, &pos, &loose_scan_pos); } diff --git a/sql/sql_select.h b/sql/sql_select.h index 4ec258f3653..b6359307215 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -854,6 +854,7 @@ class LooseScan_picker : public Semi_join_strategy_picker friend void best_access_path(JOIN *join, JOIN_TAB *s, table_map remaining_tables, + const struct st_position *join_positions, uint idx, bool disable_jbuf, double record_count, @@ -2071,6 +2072,12 @@ class store_key_const_item :public store_key_item } }; +void best_access_path(JOIN *join, JOIN_TAB *s, + table_map remaining_tables, + const POSITION *join_positions, uint idx, + bool disable_jbuf, double record_count, + POSITION *pos, POSITION *loose_scan_pos); + bool cp_buffer_from_ref(THD *thd, TABLE *table, TABLE_REF *ref); bool error_if_full_join(JOIN *join); int report_error(TABLE *table, int error); @@ -2435,7 +2442,7 @@ bool instantiate_tmp_table(TABLE *table, KEY *keyinfo, ulonglong options); bool open_tmp_table(TABLE *table); void setup_tmp_table_column_bitmaps(TABLE *table, uchar *bitmaps); -double prev_record_reads(POSITION *positions, uint idx, table_map found_ref); +double prev_record_reads(const POSITION *positions, uint idx, table_map found_ref); void fix_list_after_tbl_changes(SELECT_LEX *new_parent, List<TABLE_LIST> *tlist); double get_tmp_table_lookup_cost(THD *thd, double row_count, uint row_size); double get_tmp_table_write_cost(THD *thd, double row_count, uint row_size);

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[Commits] d0b74bbacc5: MDEV-20440: Optimizer trace: print more details about semi-join optimization
by psergey 12 Sep '19

12 Sep '19

revision-id: d0b74bbacc584e4879a29ae4277f6ce4f9145a60 (mariadb-10.4.7-67-gd0b74bbacc5) parent(s): 60c04be6599597548ad07ce11e1d7d4004a7cc9c author: Sergei Petrunia committer: Sergei Petrunia timestamp: 2019-09-12 19:07:56 +0300 message: MDEV-20440: Optimizer trace: print more details about semi-join optimization Followup patch: fix typos --- mysql-test/main/opt_trace.result | 17 ++++++++++++----- sql/opt_subselect.cc | 8 +++++--- 2 files changed, 17 insertions(+), 8 deletions(-) diff --git a/mysql-test/main/opt_trace.result b/mysql-test/main/opt_trace.result index 3438714fd28..63a86615186 100644 --- a/mysql-test/main/opt_trace.result +++ b/mysql-test/main/opt_trace.result @@ -2970,7 +2970,7 @@ explain extended select * from t1 where a in (select pk from t10) { "read_time": 27.129 }, { - "chosen_strategy": "SJ-Materialize" + "chosen_strategy": "SJ-Materialization" } ], "estimated_join_cardinality": 3 @@ -4609,7 +4609,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_ "read_time": 18.315 }, { - "chosen_strategy": "SJ-Materialize" + "chosen_strategy": "SJ-Materialization" } ], "estimated_join_cardinality": 3 @@ -6309,7 +6309,14 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { ] }, { - "fix_semijoin_strategies_for_picked_join_order": [] + "fix_semijoin_strategies_for_picked_join_order": [ + { + "semi_join_strategy": "DuplicateWeedout" + }, + { + "semi_join_strategy": "DuplicateWeedout" + } + ] }, { "best_join_order": [ @@ -6833,7 +6840,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "read_time": 37.226 }, { - "chosen_strategy": "SJ-Materialize" + "chosen_strategy": "SJ-Materialization" } ], "rest_of_plan": [ @@ -6935,7 +6942,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "read_time": 294.96 }, { - "chosen_strategy": "SJ-Materialize" + "chosen_strategy": "SJ-Materialization" } ], "estimated_join_cardinality": 27 diff --git a/sql/opt_subselect.cc b/sql/opt_subselect.cc index c4cb9b81170..f8284ac8b1a 100644 --- a/sql/opt_subselect.cc +++ b/sql/opt_subselect.cc @@ -2938,10 +2938,10 @@ void advance_sj_state(JOIN *join, table_map remaining_tables, uint idx, const char *sname; switch (pos->sj_strategy) { case SJ_OPT_MATERIALIZE: - sname= "SJ-Materialize"; + sname= "SJ-Materialization"; break; case SJ_OPT_MATERIALIZE_SCAN: - sname= "SJ-Materialize-Scan"; + sname= "SJ-Materialization-Scan"; break; case SJ_OPT_FIRST_MATCH: sname= "FirstMatch"; @@ -3203,7 +3203,7 @@ bool LooseScan_picker::check_qep(JOIN *join, (new_join_tab->table->map & loosescan_need_tables)) { Json_writer_object trace(join->thd); - trace.add("strategy", "SJ-Materialization-Scan"); + trace.add("strategy", "LooseScan"); /* Ok we have LooseScan plan and also have all LooseScan sj-nest's inner tables and outer correlated tables into the prefix. @@ -3899,6 +3899,8 @@ void fix_semijoin_strategies_for_picked_join_order(JOIN *join) if (pos->sj_strategy == SJ_OPT_DUPS_WEEDOUT) { + Json_writer_object semijoin_strategy(thd); + semijoin_strategy.add("semi_join_strategy","DuplicateWeedout"); /* Duplicate Weedout starting at pos->first_dupsweedout_table, ending at this table.

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