Re: which view is used another views

[salah jubeh <s_jubeh@xxxxxxxxx>]

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@xxxxxx>
To: salah jubeh <s_jubeh@xxxxxxxxx>
Cc: pgsql <pgsql-general@xxxxxxxxxxxxxx>
Sent: Thu, March 24, 2011 6:18:16 PM
Subject: Re: 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@xxxxxx

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