drop table t1;
drop table t2;
drop table t3;
drop table t4;



Create table t1(a int);
Create table t2(a int);
Create table t3(a int);
Create table t4(a int);


insert into t1 values(generate_series(1,1000000));
insert into t2 values(generate_series(1,1000000));
insert into t3 values(generate_series(1,1000000));
insert into t4 values(generate_series(1,1000000));

delete from t1 where a % 100 = 0;
delete from t2 where a % 100 = 0;
delete from t3 where a % 100 = 0;
delete from t4 where a % 100 = 0;
checkpoint;
