Details
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Bug
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Status: Closed (View Workflow)
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Minor
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Resolution: Fixed
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None
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None
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None
Description
Not repeatable on maria-5.2, mysql-5.5. HAVING is not observed in the query below, so the result set contains 1 row that does not match the having.
Explain:
| 1 | PRIMARY | t1 | system | NULL | NULL | NULL | NULL | 1 | |
| 1 | PRIMARY | t2 | system | NULL | NULL | NULL | NULL | 1 | |
| 2 | SUBQUERY | t3 | system | NULL | NULL | NULL | NULL | 1 |
test case:
CREATE TABLE t1 ( f2 int, f3 int , KEY (f3) ) ;
INSERT IGNORE INTO t1 VALUES (3,1);
CREATE TABLE t2 ( f1 int NOT NULL ) ;
INSERT IGNORE INTO t2 VALUES (29);
CREATE TABLE t3 ( f3 int) ;
INSERT INTO t3 VALUES (NULL);
SELECT MAX( t1.f3 ) AS field1
FROM t1 JOIN t2 ON t2.f1 != 0
WHERE ( SELECT f3 FROM t3 )
HAVING field1 <> 6 ;
should return an empty result, but instead returns NULL
bzr version-info:
revision-id: <email address hidden>
date: 2011-05-31 12:16:02 +0200
build-date: 2011-06-02 12:42:10 +0300
revno: 3016
branch-nick: maria-5.3