Remove array values in pgSQL

Question

Is there a way to remove a value from an array in pgSQL? Or to be more precise, to pop the last value? Judging by this list the answer seems to be no. I can get the result I wan

Answer 1

I've created a array_pop function so you can remove an element with known value from an array.

CREATE OR REPLACE FUNCTION array_pop(a anyarray, element character varying)
RETURNS anyarray
LANGUAGE plpgsql
AS $function$
DECLARE 
    result a%TYPE;
BEGIN
SELECT ARRAY(
    SELECT b.e FROM (SELECT unnest(a)) AS b(e) WHERE b.e <> element) INTO result;
RETURN result;
END;
$function$ 

there is also a gist version https://gist.github.com/1392734