database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

Fixed LP bug #910083.

Browse Source 
The patch for bug 685411 erroneously removed a call of engine->set_thd()
from Item_subselect::fix_fields().
This commit is contained in:
Igor Babaev
2012-01-02 20:06:36 -08:00
parent 7714496dc1
commit cd55894a52
3 changed files with 85 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
mysql-test/r/trigger.result
View File

@ -2134,3 +2134,47 @@ i
2
drop table t1,t2;
End of 5.2 tests.
#
# BUG #910083: materialized subquery in a trigger
#
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on';
CREATE TABLE t1 (a int);
CREATE TABLE t2 (b int);
CREATE TRIGGER tr AFTER UPDATE ON t1 FOR EACH ROW
UPDATE t2 SET b = (SELECT COUNT(a) FROM t1);
INSERT INTO t1
VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9);
INSERT INTO t2
VALUES (0),(0),(0),(0),(0),(0),(0),(0),(0);
UPDATE t1 SET a = 3;
SELECT COUNT(*) FROM t1;
COUNT(*)
9
SELECT * FROM t2;
b
9
9
9
9
9
9
9
9
9
UPDATE t1 SET a = 2;
SELECT * FROM t2;
b
9
9
9
9
9
9
9
9
9
SET optimizer_switch=@save_optimizer_switch;
DROP TRIGGER tr;
DROP TABLE t1, t2;
End of 5.3 tests.