On Fri, 7 Jul 2006, Michael Loftis wrote: > OK I'm either insane or found a bug in 8.1.3 > > If you execute say: > > SELECT DISTINCT(ua.user_id),pa.poll_id FROM user_answers ua, poll_answers > pa WHERE pa.poll_answer_id = ua.poll_answer_id AND ua.active='Y'; > > Everything is fine, however if you run > > SELECT pa.poll_id,DISTINCT(ua.user_id) FROM user_answers ua, poll_answers > pa WHERE pa.poll_answer_id = ua.poll_answer_id AND ua.active='Y'; This statement is invalid. DISTINCT is a set quantifier and either comes before the select list or as the first thing in a set function specification.