CREATE OR REPLACE FUNCTION ifnull(value anyelement, null_ anyelement)

  RETURNS anyelement AS

$BODY$

SELECT util.ifnull($1, $2)

$BODY$

  LANGUAGE sql IMMUTABLE

  COST 100;

COMMENT ON FUNCTION ifnull(anyelement, anyelement) IS '

wrapper that prevents views from getting dropped when the util schema is reinstalled

';