Cstdenis <lists@xxxxxxxxxxx> writes: > If I understand that you are proposing as > select * from > (select distinct on (user_id) * from stories as s order > by user_id) as foo > order by date_submitted desc limit 10; No, you always need to sort by *more* columns than are listed in DISTINCT ON. That's what determines which row is picked in each DISTINCT group. Read the SELECT reference page's example of how to use DISTINCT ON. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general