database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-01-06 05:22:24 +03:00
Code Activity

Fixed LP BUG#615378 Incorrect processing of NULL result in Item_cache fixed.

Browse Source
This commit is contained in:
unknown
2010-11-09 13:13:56 +02:00
parent b67be0b23b
commit 05f21b21e4
3 changed files with 157 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
mysql-test/r/subselect_cache.result
View File

@@ -3272,3 +3272,41 @@ FROM t2 ) AND table1 .`col_varchar_key` OR table1 .`pk` ;
col_varchar_nokey
drop table t1,t2;
set @@optimizer_switch= default;
# LP BUG#615378 (incorrect NULL result returning in Item_cache)
CREATE TABLE `t1` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_varchar_key` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`),
KEY `col_varchar_key` (`col_varchar_key`)
) DEFAULT CHARSET=latin1;
INSERT INTO `t1` VALUES (10,'v');
INSERT INTO `t1` VALUES (11,'r');
CREATE TABLE `t2` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_varchar_key` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`),
KEY `col_varchar_key` (`col_varchar_key`)
) DEFAULT CHARSET=latin1;
INSERT INTO `t2` VALUES (1,'r');
INSERT INTO `t2` VALUES (2,'c');
CREATE TABLE `t3` (
`pk` int(11) NOT NULL AUTO_INCREMENT,
`col_varchar_key` varchar(1) DEFAULT NULL,
PRIMARY KEY (`pk`),
KEY `col_varchar_key` (`col_varchar_key`)
) DEFAULT CHARSET=latin1;
INSERT INTO `t3` VALUES (1,'w');
SELECT SUM( DISTINCT table2 . `pk` ) AS field2 ,
(SELECT SUM( SUBQUERY1_t2 . `pk` ) AS SUBQUERY1_field1
FROM t2 AS SUBQUERY1_t2 STRAIGHT_JOIN
t3 AS SUBQUERY1_t3 ON (SUBQUERY1_t3 . `pk` = SUBQUERY1_t2 . `pk` )
WHERE table1 . `col_varchar_key` ) AS field3
FROM ( t1 AS table1 LEFT JOIN
( t2 AS table2 STRAIGHT_JOIN
t3 AS table3 ON (table3 . `pk` = table2 . `pk` ) )
ON (table3 . `col_varchar_key` = table1 . `col_varchar_key` ) )
WHERE ( table1 . `pk` < 5 ) OR ( table1 . `col_varchar_key` IS NOT NULL)
GROUP BY field3
HAVING (field3 <= 'h' AND field2 != 4) ;
field2 field3
drop tables t1, t2, t3;