mariadb/mysql-test/t/subselect_debug.test

--source include/have_debug.inc

#
# Bug #37627: Killing query with sum(exists()) or avg(exists()) reproducibly
# crashes server
#

CREATE TABLE t1(id INT);
INSERT INTO t1 VALUES (1),(2),(3),(4);
INSERT INTO t1 SELECT a.id FROM t1 a,t1 b,t1 c,t1 d;
# Setup the mysqld to crash at certain point
SET @orig_debug=@@debug;
SET GLOBAL debug_dbug="d,subselect_exec_fail";
SELECT SUM(EXISTS(SELECT RAND() FROM t1)) FROM t1;
SELECT REVERSE(EXISTS(SELECT RAND() FROM t1));
SET GLOBAL debug_dbug=@orig_debug;
DROP TABLE t1;

#
# MDEV-5284 Assertion `!(*expr)->fixed' fails in replace_where_subcondition with IN suquery
#

create table t1 (i int);
insert into t1 values (1),(2);
select * from t1 where (i < 200 or i = 300) and i in (select i from t1);
drop table t1;