--------------------------------------------
1я функция
CREATE OR REPLACE FUNCTION up_site."index"(text, text) RETURNS "varchar" AS
$BODY$
DECLARE
  _GET ALIAS FOR $ 1 ;
  _POST ALIAS FOR $ 2 ;
  test varchar( 255 ) := '';
BEGIN
  SELECT t.description INTO test FROM up_data.flt_b2b_items_item AS t WHERE no_ = 'ZPNL14233'; 
  RETURN test;
END;
$BODY$
  LANGUAGE 'plpgsql' VOLATILE;
--------------------------------------------
2я функция
CREATE OR REPLACE FUNCTION up_site.test_eval()
  RETURNS "varchar" AS
$BODY$
DECLARE
  eee record;
  param varchar( 255 ) := '';
BEGIN
  for eee in EXECUTE 'SELECT up_site.index('''', '''')' loop  
  RETURN eee;
  end loop;
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE;