DROP FUNCTION check_primary_key ();
DROP FUNCTION check_foreign_key ();

CREATE FUNCTION check_primary_key ()
	RETURNS opaque
	AS '_OBJWD_/refint_DLSUFFIX_'
	LANGUAGE 'c'
;

CREATE FUNCTION check_foreign_key ()
	RETURNS opaque
	AS '_OBJWD_/refint_DLSUFFIX_'
	LANGUAGE 'c'
;