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Test case backport for: Bug#42580 - Innodb's ORDER BY ..LIMIT returns no rows for null-safe operator <=> NULL

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This commit is contained in:
Sergey Petrunya
2011-01-14 16:38:41 +03:00
parent 71be71da15
commit d0535d80a1
7 changed files with 157 additions and 0 deletions
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29
mysql-test/include/icp_tests.inc Normal file
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--echo #
--echo # Bug#42580 - Innodb's ORDER BY ..LIMIT returns no rows for
--echo # null-safe operator <=> NULL
--echo #
CREATE TABLE t1(
c1 DATE NOT NULL,
c2 DATE NULL,
c3 DATETIME,
c4 TIMESTAMP,
PRIMARY KEY(c1),
UNIQUE(c2)
);
--echo
INSERT INTO t1 VALUES('0000-00-00', '0000-00-00', '2008-01-04', '2008-01-05');
INSERT INTO t1 VALUES('2007-05-25', '2007-05-25', '2007-05-26', '2007-05-26');
INSERT INTO t1 VALUES('2008-01-01', NULL , '2008-01-02', '2008-01-03');
INSERT INTO t1 VALUES('2008-01-17', NULL , NULL , '2009-01-29');
INSERT INTO t1 VALUES('2009-01-29', '2009-01-29', '2009-01-29', '2009-01-29');
--echo
SELECT * FROM t1 WHERE c2 <=> NULL ORDER BY c1,c2;
--echo
SELECT * FROM t1 WHERE c2 <=> NULL ORDER BY c1,c2 LIMIT 2;
--echo
DROP TABLE t1;