On Fri, Sep 23, 2005 at 07:55:32PM -0500, hildebardo@xxxxxxxxxxxxxx wrote: > I have two tables [...] > then I need to join the two tables in a function like this > > doc|date |id > 1 |2005-09-22| 50 > 2 |2005-09-21| 50 > 12 |2005-09-01| 20 > 13 |2005-09-21| 24 > 14 |2005-09-22| 31 This doesn't look like a join of the two tables; it looks instead like a union. Is this the query you're looking for? SELECT doc, date, id_customer AS id FROM first_one UNION ALL SELECT doc, date, id_code AS id FROM second_one; -- Michael Fuhr ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org