Re: starting a stored procedure+rule AFTER an insert

From: "Bima Djaloeis" <bima(dot)djaloeis(dot)uni(at)googlemail(dot)com>
To: "Douglas McNaught" <doug(at)mcnaught(dot)org>
Cc: pgsql-novice(at)postgresql(dot)org, pgsql-general(at)postgresql(dot)org
Subject: Re: starting a stored procedure+rule AFTER an insert
Date: 2007-10-09 07:51:51
Message-ID: 77f6bcdd0710090051v74bed6b5ncdcbcc8ad8c08e7a@mail.gmail.com
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Thanks for the reply, is there any online reference / tutorial for this?

-BD

2007/10/8, Douglas McNaught <doug(at)mcnaught(dot)org>:
>
> "Bima Djaloeis" <bima(dot)djaloeis(dot)uni(at)googlemail(dot)com> writes:
>
> > I have implemented a stored procedure that writes out the newest DB
> > entry on insert, and combined it with a rule.
> >
> > 1) create function newcache() returns void AS 'newCache', 'newCache'
> language
> > c;
> > 2) create rule newcacherule AS on insert to caches do also select
> newcache();
> >
> > The problem is that newcacherule fires BEFORE the insert has taken
> > place, so effectively, I always just get the 2nd newest entry to
> > write into my text file while the newest entry is "stuck in the
> > queue" until a new insert come. How can I execute my rule AFTER the
> > insert has taken place?
>
> Rules effectively happen at query parse time. You probably want an
> AFTER trigger instead.
>
> -Doug
>

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