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

Merge 5.1 main -> 5.1-rpl

Browse source
This commit is contained in:
He Zhenxing 2008-09-06 08:51:17 +08:00
commit b17458dcc1
236 changed files with 147176 additions and 10018 deletions
Download patch file Download diff file Expand all files Collapse all files

44
mysql-test/t/subselect.test
View file

@ -3312,4 +3312,48 @@ SELECT * FROM t1
WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b);
DROP TABLE t1,t2;
#
# Bug #37548: result value erronously reported being NULL in certain subqueries
#
CREATE TABLE t1 (a int, b int, PRIMARY KEY (a), KEY b (b));
INSERT INTO t1 VALUES (1,NULL), (9,NULL);
CREATE TABLE t2 (
a int,
b int,
c int,
d int,
PRIMARY KEY (a),
UNIQUE KEY b (b,c,d),
KEY b_2 (b),
KEY c (c),
KEY d (d)
);
INSERT INTO t2 VALUES
(43, 2, 11 ,30),
(44, 2, 12 ,30),
(45, 1, 1 ,10000),
(46, 1, 2 ,10000),
(556,1, 32 ,10000);
CREATE TABLE t3 (
a int,
b int,
c int,
PRIMARY KEY (a),
UNIQUE KEY b (b,c),
KEY c (c),
KEY b_2 (b)
);
INSERT INTO t3 VALUES (1,1,1), (2,32,1);
explain
SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a;
SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a;
DROP TABLE t1,t2,t3;
--echo End of 5.1 tests.