OK, to answer my own question (typo's possible, works here ;-)): CREATE TYPE abonnementartikelheader AS (col1 int4, col2 int4); CREATE OR REPLACE FUNCTION getabonnementartikelheader(int4) RETURNS SETOF abonnementartikelheader AS ' select (SELECT COUNT(klantnummer)::int4 FROM abo_klt WHERE abonnement = $1), (SELECT SUM(aantal_abonnementen)::int4 FROM abo_klt WHERE abonnement = $1); ' LANGUAGE 'sql' VOLATILE; Groeten, Joost ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@xxxxxxxxxxxxxx so that your message can get through to the mailing list cleanly