Re: which view is used another views

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';

Regards

________________________________
From: Raymond O'Donnell <rod(at)iol(dot)ie>
To: salah jubeh <s_jubeh(at)yahoo(dot)com>
Cc: pgsql <pgsql-general(at)postgresql(dot)org>
Sent: Thu, March 24, 2011 6:18:16 PM
Subject: Re: [GENERAL] which view is used another views

On 24/03/2011 16:06, salah jubeh wrote:
> Hello,
>
> How can I determine the views which are using a certain view.

If you're using pgAdmin, there's a "Dependants" tab which shows you the objects
depending on another object.

Otherwise, I think you can query the pg_catalog.pg_depend table, but I don't
know how you go about that.

Ray.

-- Raymond O'Donnell :: Galway :: Ireland
rod(at)iol(dot)ie

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