Re: Referential cascade technique

while the below query does product all foreign keys,  my PLPERL/query
looks much better...


> On Mon, 23 Jul 2001, Jim Buttafuoco wrote:
>
> > I use the following PLPERL/select "code" to view all FK's in my
database
> > .  I guess the "select" could be made into a pg_fkeys view.  What do
> > people think...
>
> The following was posted to the list a while ago, compliments of
Michael
> Fork:
>
>    SELECT pt.tgargs, pt.tgnargs, pt.tgdeferrable, pt.tginitdeferred,
>        pg_proc.proname, pg_proc_1.proname FROM pg_class pc,
>        pg_proc pg_proc, pg_proc pg_proc_1, pg_trigger pg_trigger,
>        pg_trigger pg_trigger_1, pg_proc pp, pg_trigger pt
>    WHERE  pt.tgrelid = pc.oid AND pp.oid = pt.tgfoid
>        AND pg_trigger.tgconstrrelid = pc.oid
>        AND pg_proc.oid = pg_trigger.tgfoid
>        AND pg_trigger_1.tgfoid = pg_proc_1.oid
>        AND pg_trigger_1.tgconstrrelid = pc.oid
>        AND ((pc.relname= '<< TABLENAME >>>')
>        AND (pp.proname LIKE '%%ins')
>        AND (pg_proc.proname LIKE '%%upd')
>        AND (pg_proc_1.proname LIKE '%%del')
>        AND (pg_trigger.tgrelid=pt.tgconstrrelid)
>        AND (pg_trigger_1.tgrelid = pt.tgconstrrelid));
>
> This will show all foreign keys on a table.
>
>
> > Just a note.  I used PLPERL because the fkey data is stored in a
BYTEA
> > data field and other then a "C" function PLPERL works fine for me...
>
> [snip]
>
> --
> Dominic J. Eidson
>                                         "Baruk Khazad! Khazad
ai-menu!" - Gimli
>
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