1
1
drop table if exists t1,t2;
2
create table t1(n int not null, key(n), key(n), key(n), key(n));
2
create table t1(n int not null, key(n), key(n), key(n), key(n)) engine=myisam;
4
4
insert into t1 values (200000);
5
5
Table Op Msg_type Msg_text
18
10
Table Op Msg_type Msg_text