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