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Fixed bug mdev-4952

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When in function remove_eq_conds() a sub-formula of the processed condition
is replaced for another formula we should ensure that in the resulting
formula AND/OR levels must alternate.
This commit is contained in:
Igor Babaev
2013-08-26 15:51:47 -07:00
parent 901737c978
commit 650d3266bb
4 changed files with 60 additions and 1 deletions
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18
mysql-test/t/join_outer.test
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@ -1392,4 +1392,22 @@ SELECT * FROM t1 LEFT JOIN t2 ON i1 = i2 WHERE d1 IS NULL AND d2 IS NULL;
DROP TABLE t1,t2;
--echo #
--echo # Bug mdev-4952: LEFT JOIN with disjunctive
--echo # <non-nullable datetime field> IS NULL in WHERE
--echo # causes an assert failure
--echo #
CREATE TABLE t1 (a1 int, b1 int NOT NULL) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1, 10), (2, 11);
CREATE TABLE t2 (dt datetime NOT NULL, a2 int, b2 int) ENGINE=MyISAM;
INSERT INTO t2 VALUES
('2006-10-08 09:34:54', 1, 100), ('2001-01-19 01:04:43', 2, 200);
SELECT * FROM t1 LEFT JOIN t2 ON a1 = a2
WHERE ( dt IS NULL OR FALSE ) AND b2 IS NULL;
DROP TABLE t1,t2;
SET optimizer_switch=@save_optimizer_switch;