# TestIssue21200
drop table if exists t, t1;
create table t(a int);
create table t1(a int);
insert into t values(1);
insert into t1 values(1);
delete a from t a where exists (select 1 from t1 where t1.a=a.a);
select * from t;
insert into t values(1), (2);
insert into t1 values(2);
prepare stmt from 'delete a from t a where exists (select 1 from t1 where a.a=t1.a and t1.a=?)';
set @a=1;
execute stmt using @a;
select * from t;