我想用c#查看display中表中的数据，但我在postgresql中的函数返回错误：

ERROR:  query has no destination for result data
HINT:  If you want to discard the results of a SELECT, use PERFORM instead.
CONTEXT:  PL/pgSQL function view1() line 3 at SQL statement
SQL state: 42601

postgresql函数：

CREATE OR REPLACE FUNCTION View1 ()
RETURNS table (X varchar,Y varchar,Provinces varchar)
  AS
$BODY$
BEGIN
   RETURN
   ( SELECT "X","Y","Provinces" FROM public.point) ;
END;
$BODY$ LANGUAGE plpgsql;

请帮帮我。