1# 2# MDEV-4610 SQL query crashes MariaDB with derived_with_keys 3# 4--source include/have_innodb.inc 5create table t1 (f1 char(4) primary key) engine=innodb charset=utf8 ; 6insert into t1 values ('aaaa'); 7create table t2 (f2 text, f3 char(4) not null) engine=innodb charset=utf8 ; 8create table t3 (id int not null) engine=innodb charset=utf8 ; 9create table t4 (val int not null) engine=innodb charset=utf8; 10explain select 1 from 11 (select f2, f3, val, count(id) from t4 join t2 left join t3 on 0) top 12 join t1 on f1 = f3 where f3 = 'aaaa' order by val; 13select 1 from 14 (select f2, f3, val, count(id) from t4 join t2 left join t3 on 0) top 15 join t1 on f1 = f3 where f3 = 'aaaa' order by val; 16drop table t1, t2, t3, t4; 17