CREATE TABLE `t1` ( `c1` int(11) NOT NULL, `c2` datetime DEFAULT NULL, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; CREATE TABLE `t2` ( `c0` varchar(10) NOT NULL, `c1` int(11) NOT NULL, `c2` int(11) NOT NULL, PRIMARY KEY (`c0`,`c1`), KEY `c1` (`c1`), KEY `c2` (`c2`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; CREATE TABLE `t3` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `c1` datetime NOT NULL, `c2` bigint(20) NOT NULL, `c3` int(4) unsigned NOT NULL, PRIMARY KEY (`id`), KEY `c2` (`c2`), KEY `c3` (`c3`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; CREATE TABLE `t4` ( `c1` int(11) NOT NULL, `c2` bigint(20) DEFAULT NULL, `c3` int(11) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1; CREATE ALGORITHM=UNDEFINED VIEW `v1` AS select `t4`.`c1` AS `c1`,`t4`.`c2` AS `c2`,`t4`.`c3` AS `c3` from `t4`; UPDATE t1 a JOIN t2 b ON a.c1 = b.c1 JOIN v1 vw ON b.c2 = vw.c1 JOIN t3 del ON vw.c2 = del.c2 SET a.c2 = ( SELECT max(t.c1) FROM t3 t, v1 i WHERE del.c2 = t.c2 AND vw.c3 = i.c3 AND t.c3 = 4 ) WHERE a.c2 IS NULL OR a.c2 < '2011-05-01'; drop view v1; drop table t1,t2,t3,t4; # # MDEV-14862: Server crashes in Bitmap<64u>::merge / add_key_field # CREATE TABLE t1 (a INT) ENGINE=InnoDB; CREATE VIEW v1 AS SELECT * FROM t1; CREATE TABLE t2 (b INT) ENGINE=InnoDB; DELETE FROM v1 WHERE a IN ( SELECT a FROM t2 ); DELETE FROM v1 WHERE (a,a) IN ( SELECT a,a FROM t2 ); drop view v1; drop table t1,t2; # # MDEV-10232 Scalar result of subquery changes after adding an outer select stmt # CREATE TABLE t1 ( a_id INT(20) UNSIGNED NOT NULL AUTO_INCREMENT, b_id INT(20) UNSIGNED NULL DEFAULT NULL, c_id VARCHAR(255) NULL DEFAULT NULL, PRIMARY KEY (a_id))COLLATE = 'utf8_general_ci' ENGINE = InnoDB; CREATE TABLE t2 ( b_id INT(20) UNSIGNED NOT NULL AUTO_INCREMENT, c_id VARCHAR(255) NULL DEFAULT NULL, PRIMARY KEY (b_id), INDEX idx_c_id (c_id))COLLATE = 'utf8_general_ci' ENGINE = InnoDB; INSERT INTO t1 (b_id, c_id) VALUES (NULL, NULL); INSERT INTO t2 (c_id) VALUES (NULL); INSERT INTO t2 (c_id) VALUES (NULL); SELECT * FROM t1; a_id b_id c_id 1 NULL NULL SELECT t2.b_id FROM t1,t2 WHERE t2.c_id = t1.c_id; b_id UPDATE t1 SET b_id = (SELECT t2.b_id FROM t2 t2 WHERE t2.c_id = t1.c_id); SELECT * FROM t1; a_id b_id c_id 1 NULL NULL drop table t1,t2; # # MDEV-18300: ASAN error in Field_blob::get_key_image upon UPDATE with subquery # set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity; set @save_use_stat_tables= @@use_stat_tables; set use_stat_tables=preferably; set optimizer_use_condition_selectivity=4; CREATE TABLE t1 (a INT, b CHAR(8)) ENGINE=InnoDB; insert into t1 values (1,'foo'),(2, 'abc'); CREATE TABLE t2 (c CHAR(8), d BLOB) ENGINE=InnoDB; insert into t2 values ('abc', 'foo'),('edf', 'food'); ANALYZE TABLE t1,t2; UPDATE t1 SET a = 1 WHERE b = ( SELECT c FROM t2 WHERE d = 'foo' ); SELECT * FROM t1; a b 1 foo 1 abc DROP TABLE t1, t2; create table t1 (a int not null, b int, c int) engine=InnoDB; create table t2 (d int, e int) engine=InnoDB; update t1, t2 set a=NULL, b=2, c=NULL where b=d and e=200; drop table t1,t2; set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity; set @@use_stat_tables= @save_use_stat_tables;