drop database if exists equalset_db;
create database equalset_db;
use equalset_db;

create table t1(c1 int primary key, c2 int) partition by hash(c1 + 1) partitions 3

select * from t1 where c1=1 and c2=1;
select * from t1 where c1=c2 and c2=1;
select * from t1 where c1=1 and c2=1 and c1=c2;
select * from t1 where c1=c1;
select * from t1 where 1=1;

drop database equalset_db;