# # Check on condition on different length keys. --disable_warnings drop table if exists t1; --enable_warnings CREATE TABLE t1 ( a char(5) NOT NULL, b char(4) NOT NULL, KEY (a), KEY (b) ); INSERT INTO t1 VALUES ('A','B'),('b','A'),('C','c'),('D','E'),('a','a'); select * from t1,t1 as t2; explain select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B; #select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B; select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B order by binary t1.a,t2.a; select * from t1 where a='a'; drop table t1; # End of 4.1 tests