3097
3097
id select_type table type possible_keys key key_len ref rows Extra
3098
3098
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1
3100
3100
1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where
3102
3102
CREATE TABLE t1 ( f1 int primary key, f2 int, f3 int, f4 int, f5 int, f6 int, checked_out int);