--disable_query_log
set @@session.explicit_defaults_for_timestamp=off;
--enable_query_log
#owner: dachuan.sdc
#owner group: sql1
#tags: create_table, insert
#description:

--disable_warnings
drop table if exists t1;
--enable_warnings

create table t1(c1 int primary key, c2 int);
insert into t1 values(1,1),(2,2),(3,3);

let $cnt=30;
while($cnt) 
{
select * from t1 as t2 where c1=1;
dec $cnt;
}

drop table t1;