Re: which view is used another views

I am using postgresql 8.3

Best Regard

Eng. Salah Al Jubeh

PalestinePolytechnic University
College of Applied Science
Computer Science
P.O. Box 198

Mobile:++97259369122
Tel:++97222254680

________________________________
From: Emre Hasegeli <hasegeli(at)tart(dot)com(dot)tr>
To: salah jubeh <s_jubeh(at)yahoo(dot)com>
Cc: pgsql <pgsql-general(at)postgresql(dot)org>
Sent: Fri, March 25, 2011 6:25:13 PM
Subject: Re: [GENERAL] which view is used another views

On 25 March 2011 19:13, salah jubeh <s_jubeh(at)yahoo(dot)com> wrote:

Hello Guys
>
>The query in this function returns the dependency for level one. However, I need
>the dependency for all level. I am still new with plpgsql so; how can I use
>recursive function to return all dependency for all levels
>
>
>
>CREATE OR REPLACE FUNCTION dependon (var text) RETURNS SETOF text AS
>$BODY$
>DECLARE
> node record;
>BEGIN
>
> FOR node IN SELECT relname FROM pg_class WHERE OID in (
> SELECT ev_class FROM pg_rewrite, pg_depend
> WHERE pg_depend.objid = pg_rewrite.oid
> AND deptype ='n'
> AND refobjsubid = 1
> AND refobjid::regclass::text = $1)
> LOOP
> IF node.relname IS NOT NULL THEN
>
> RETURN NEXT depend(node.relname);
> RETURN NEXT node.relname;
>
> END IF;
>
> END LOOP;
>END
>$BODY$
>LANGUAGE 'plpgsql';
>
>

You can do it with "WITH RECURSIVE" without PL/pgSQL:
http://www.postgresql.org/docs/current/static/queries-with.html