drop table if exists t1;
drop table if exists t2;
create table t1(a bigint, b bigint);
create table t2(a bigint, b bigint);
set session tidb_hashagg_partial_concurrency = 1;
set session tidb_hashagg_final_concurrency = 1;
explain select * from t1 where t1.a in (select t1.b + t2.b from t2);

drop table if exists t;
create table t(a int primary key, b int, c int, d int, index idx(b,c,d));
insert into t values(1,1,1,1),(2,2,2,2),(3,2,2,2),(4,2,2,2),(5,2,2,2);
analyze table t;
explain select t.c in (select count(*) from t s use index(idx), t t1 where s.b = 1 and s.c = 1 and s.d = t.a and s.a = t1.a) from t;