2008/2/27, Bart Degryse <Bart(dot)Degryse(at)indicator(dot)be>: > > I would also suggest you replace the > ...t.cod_user IN (subselect) > by a join construction. I think it's more performant. In recent versions PostgreSQL is quite smart when planning IN, so that shouldn't be a concern. Markus -- Markus Bertheau Blog: http://www.bluetwanger.de/blog/