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mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00

Merge remote-tracking branch 'origin/10.4' into 10.5

This commit is contained in:
Daniel Black
2021-02-25 20:05:35 +11:00
10 changed files with 274 additions and 57 deletions

View File

@ -748,7 +748,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 MATERIALIZED <derived2> ALL NULL NULL NULL NULL 2 100.00
2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1)) `tvc_0`) where 1
Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1)) `tvc_0`) where 1
explain extended select * from t1
where a in (select * from (values (1)) as tvc_0);
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -983,7 +983,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 MATERIALIZED <derived2> ALL NULL NULL NULL NULL 2 100.00
2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where 1
Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0`) where 1
explain extended select * from t1
where a = any (select * from (values (1),(2)) as tvc_0);
id select_type table type possible_keys key key_len ref rows filtered Extra
@ -2776,6 +2776,110 @@ id select_type table type possible_keys key key_len ref rows Extra
2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where
drop table t1;
#
# MDEV-24910: TVC containing subquery used as a subselect
#
create table t1 (a int) engine=myisam;
insert into t1 values (3), (7), (1);
create table t2 (b int) engine=myisam;
insert into t2 values (1), (2);
select (values ((select 2))) from t2;
(values ((select 2)))
2
2
explain select (values ((select 2))) from t2;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
4 SUBQUERY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1249 Select 3 was reduced during optimization
prepare stmt from "select (values ((select 2))) from t2";
execute stmt;
(values ((select 2)))
2
2
execute stmt;
(values ((select 2)))
2
2
deallocate prepare stmt;
select (values ((select * from t1 where a > 10))) from t2;
(values ((select * from t1 where a > 10)))
NULL
NULL
explain select (values ((select * from t1 where a > 10))) from t2;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
4 SUBQUERY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
3 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where
prepare stmt from "select (values ((select * from t1 where a > 10))) from t2";
execute stmt;
(values ((select * from t1 where a > 10)))
NULL
NULL
execute stmt;
(values ((select * from t1 where a > 10)))
NULL
NULL
deallocate prepare stmt;
create table t3 (a int);
insert into t3 values
(3), (7), (7), (1), (3), (9), (7), (9), (8), (7), (8);
create view v1 as select count(a) as c from t3 group by a;
select
(values ((select * from t3 where a in (select * from v1))));
(values ((select * from t3 where a in (select * from v1))))
1
explain select
(values ((select * from t3 where a in (select * from v1))));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
6 SUBQUERY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
3 SUBQUERY t3 ALL NULL NULL NULL NULL 11 Using where
3 SUBQUERY <derived5> ref key0 key0 8 test.t3.a 2 Using where; FirstMatch(t3)
5 DERIVED t3 ALL NULL NULL NULL NULL 11 Using temporary; Using filesort
prepare stmt from "select
(values ((select * from t3 where a in (select * from v1))))";
execute stmt;
(values ((select * from t3 where a in (select * from v1))))
1
execute stmt;
(values ((select * from t3 where a in (select * from v1))))
1
deallocate prepare stmt;
select
(values ((select * from t3
where a > 10 and a in (select * from v1))));
(values ((select * from t3
where a > 10 and a in (select * from v1))))
NULL
explain select
(values ((select * from t3
where a > 10 and a in (select * from v1))));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
6 SUBQUERY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
3 SUBQUERY t3 ALL NULL NULL NULL NULL 11 Using where
3 SUBQUERY <derived5> ref key0 key0 8 test.t3.a 2 Using where; FirstMatch(t3)
5 DERIVED t3 ALL NULL NULL NULL NULL 11 Using temporary; Using filesort
prepare stmt from "select
(values ((select * from t3
where a > 10 and a in (select * from v1))))";
execute stmt;
(values ((select * from t3
where a > 10 and a in (select * from v1))))
NULL
execute stmt;
(values ((select * from t3
where a > 10 and a in (select * from v1))))
NULL
deallocate prepare stmt;
drop view v1;
drop table t1,t2,t3;
#
# End of 10.3 tests
#
#