mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-05-15 19:37:16 +02:00
Code Issues Projects Releases Packages Wiki Activity

MDEV-8189 field<>const and const<>field are not symmetric

Browse source
This commit is contained in:
Alexander Barkov 2015-06-30 12:56:31 +04:00
commit 768620ee5c
14 changed files with 271 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

19
mysql-test/t/subselect_sj2.test
View file

@ -1222,6 +1222,25 @@ WHERE alias3.d IN (
AND ( alias5.b >= alias3.b OR alias5.c != alias3.c )
);
# MDEV-8189 field<>const and const<>field are not symmetric
# Do the same EXPLAIN SELECT and SELECT
# with "alias3.c != alias5.c" instead of "alias5.c != alias3.c"
EXPLAIN
SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3
WHERE alias3.d IN (
SELECT alias4.c FROM t2 AS alias4, t2 AS alias5
WHERE alias5.b = alias4.b
AND ( alias5.b >= alias3.b OR alias3.c != alias5.c )
);
SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3
WHERE alias3.d IN (
SELECT alias4.c FROM t2 AS alias4, t2 AS alias5
WHERE alias5.b = alias4.b
AND ( alias5.b >= alias3.b OR alias3.c != alias5.c )
);
set optimizer_prune_level=@tmp_951283;
DROP TABLE t1,t2;