1 files changed, 60 insertions, 0 deletions
diff --git a/mysql-test/main/func_in.test b/mysql-test/main/func_in.test
index e39932a2..b88b68f2 100644
--- a/mysql-test/main/func_in.test
+++ b/mysql-test/main/func_in.test
@@ -743,6 +743,66 @@ SELECT c1 FROM a WHERE c1 IN ( 1, 9223372036854775808 );
 drop table `a`;
 
 --echo #
+--echo # MDEV-18319 BIGINT UNSIGNED Performance issue
+--echo #
+
+CREATE OR REPLACE TABLE t1 (
+  id bigint(20) unsigned NOT NULL AUTO_INCREMENT PRIMARY KEY
+);
+DELIMITER $$;
+FOR i IN 0..255
+DO
+  INSERT INTO t1 VALUES ();
+END FOR
+$$
+DELIMITER ;$$
+SELECT MIN(id), MAX(id), COUNT(*) FROM t1;
+EXPLAIN SELECT id FROM t1 WHERE id IN (1,2);
+EXPLAIN SELECT id FROM t1 WHERE id IN (9223372036854775806, 9223372036854775807);
+EXPLAIN SELECT id FROM t1 WHERE id IN (9223372036854775807, 9223372036854775808);
+DROP TABLE t1;
+
+
+--echo #
+--echo # MDEV-18898 SELECT using wrong index when using operator IN with mixed types
+--echo #
+
+CREATE TEMPORARY TABLE t1 (
+  id int(10) unsigned NOT NULL AUTO_INCREMENT,
+  name varchar(100) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `name` (`name`)
+);
+DELIMITER $$;
+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 #