--- r/join_optimizer.result 2011-11-23 21:52:20.000000000 +0100 +++ r/join_optimizer.reject 2012-02-10 16:07:08.000000000 +0100 @@ -33,5 +33,5 @@ WHERE g.domain = 'queue' AND g.type = a.type; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE a ALL NULL NULL NULL NULL 2 Using where -1 SIMPLE g ref groups_dt groups_dt 70 const,test.a.type 13 Using index condition +1 SIMPLE g ref groups_dt groups_dt 70 const,test.a.type 1 Using where drop table t0,t1,t2,t3;