text: -- file:event_trigger.sql ln:189 expect:false
  FOR obj IN
  		SELECT * FROM pg_event_trigger_dropped_objects() JOIN
  			undroppable_objs USING (object_type, object_identity)
  	LOOP
  		RAISE EXCEPTION 'object % of type % cannot be dropped',
  			obj.object_identity, obj.object_type
  