18
18
show status like 'last_query_cost';
20
20
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
21
21
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
22
22
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);