Hallo Jose > > I found a discussion on the postgres mailing list about this problem - > > with version 8.1.1 - I use 8.1.4 - but in spanish, which I don't > > understand. > > Maybe I can help you with that ;) post the link... Thank you for your help. Here is the link: http://archives.postgresql.org/pgsql-es-ayuda/2006-06/msg00528.php Thanks again Rolf