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MDEV-18898 SELECT using wrong index when using operator IN with mixed types

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These patches:

  # commit 74891ed257
  #
  #  MDEV-11514, MDEV-11497, MDEV-11554, MDEV-11555 - IN and CASE type aggregation problems

  # commit 53499cd1ea
  #
  # MDEV-31303 Key not used when IN clause has both signed and usigned values

earlier fixed MDEV-18898.

Adding only an MTR case.

	modified:   mysql-test/main/func_in.result
	modified:   mysql-test/main/func_in.test
This commit is contained in:
Alexander Barkov
2024-04-09 14:18:29 +04:00
parent 7aa86eb1e1
commit d4936c8b26
2 changed files with 93 additions and 0 deletions
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39
mysql-test/main/func_in.test
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@ -777,6 +777,45 @@ EXPLAIN SELECT id FROM t1 WHERE id IN (9223372036854775807, 9223372036854775808)
DROP TABLE t1;
--echo #
--echo # MDEV-18898 SELECT using wrong index when using operator IN with mixed types
--echo #
CREATE TEMPORARY TABLE t1 (
id int(10) unsigned NOT NULL AUTO_INCREMENT,
name varchar(100) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `name` (`name`)
);
DELIMITER $$;
FOR i IN 1..255
DO
INSERT INTO t1 VALUES (i, MD5(i));
END FOR
$$
DELIMITER ;$$
--echo #
--echo # Constants alone
--echo #
ANALYZE SELECT id, name FROM t1 WHERE id = 1;
ANALYZE SELECT id, name FROM t1 WHERE id = '2';
--echo #
--echo # Two constants using IN
--echo #
ANALYZE SELECT id, name FROM t1 WHERE id IN (1, 2);
ANALYZE SELECT id, name FROM t1 WHERE id IN ('1', 2) /* Used a wrong index */;
ANALYZE SELECT id, name FROM t1 WHERE id IN (1, '2') /* Used a wrong index */;
ANALYZE SELECT id, name FROM t1 WHERE id IN ('1', '2');
--echo #
--echo # Two constants using OR
--echo #
ANALYZE SELECT id, name FROM t1 WHERE id = 1 OR id = 2;
ANALYZE SELECT id, name FROM t1 WHERE id = '1' OR id = '2';
ANALYZE SELECT id, name FROM t1 WHERE id = 1 OR id = '2';
ANALYZE SELECT id, name FROM t1 WHERE id = '1' OR id = 2;
DROP TABLE t1;
--echo #
--echo # End of 10.5 tests
--echo #