mirror of
https://github.com/MariaDB/server.git
synced 2025-07-29 05:21:33 +03:00
5.5 merge
This commit is contained in:
@ -2331,6 +2331,28 @@ id a2 a3 id a2 a3
|
||||
DROP VIEW v2;
|
||||
DROP TABLE t1,t2;
|
||||
#
|
||||
# MDEV-5686: degenerate disjunct in NOT IN subquery
|
||||
#
|
||||
CREATE TABLE t1 (a int, b int, c varchar(3)) ENGINE=MyISAM;
|
||||
INSERT INTO t1 VALUES (1,1,'CAN'),(2,2,'AUS');
|
||||
CREATE TABLE t2 (f int) ENGINE=MyISAM;
|
||||
INSERT INTO t2 VALUES (3);
|
||||
EXPLAIN EXTENDED
|
||||
SELECT * FROM t2
|
||||
WHERE f NOT IN (SELECT b FROM t1
|
||||
WHERE 0 OR (c IN ('USA') OR c NOT IN ('USA')) AND a = b);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t2 system NULL NULL NULL NULL 1 100.00
|
||||
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
Warnings:
|
||||
Note 1003 select 3 AS `f` from dual where (not(<expr_cache><3>(<in_optimizer>(3,<exists>(select `test`.`t1`.`b` from `test`.`t1` where (((`test`.`t1`.`c` = 'USA') or (`test`.`t1`.`c` <> 'USA')) and trigcond(((<cache>(3) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`))) and (`test`.`t1`.`b` = `test`.`t1`.`a`)) having trigcond(<is_not_null_test>(`test`.`t1`.`b`)))))))
|
||||
SELECT * FROM t2
|
||||
WHERE f NOT IN (SELECT b FROM t1
|
||||
WHERE 0 OR (c IN ('USA') OR c NOT IN ('USA')) AND a = b);
|
||||
f
|
||||
3
|
||||
DROP TABLE t1,t2;
|
||||
#
|
||||
# MDEV-3899 Valgrind warnings (blocks are definitely lost) in filesort on IN subquery with SUM and DISTINCT
|
||||
#
|
||||
CREATE TABLE t1 (a INT) ENGINE=MyISAM;
|
||||
|
Reference in New Issue
Block a user