From: hubert depesz lubaczewski <depesz@depesz.pl>
To: al_nunes@ciclotecnologia.com.br
Cc: pgsql-docs@postgresql.org
Subject: Re: Trigger Documentation
Date: Sun, 10 Jun 2001 09:35:44 +0200
Message-ID: <20010610093544.14c48d82.depesz@depesz.pl> (raw)
In-Reply-To: <Pine.LNX.4.21.0106081145560.8814-100000@pinguim.ciclotecnologia.com.br>
References: <Pine.LNX.4.21.0106081145560.8814-100000@pinguim.ciclotecnologia.com.br>
On Fri, 8 Jun 2001 11:55:08 -0300 (BRT)
al_nunes@ciclotecnologia.com.br wrote:
> What I need to do now is very simple, I want to make a trigger that
check
> if some text field is null. If it is, I want to record something on
> it. What I was trying (unsuccessfully):
> CREATE FUNCTION ins_ip() RETURNS OPAQUE AS '
> BEGIN
> IF NEW.<field> ISNULL THEN
> NEW.<field> := "something";
> RETURN NEW;
> END;
you're missing two things.
1st. there should be end if
2nd. is should be NEW.<field> := ''something'';
btw. it's better to do it with "DEFAULT" statement in create table.
depesz
--
hubert depesz lubaczewski http://www.depesz.pl/
------------------------------------------------------------------------
najwspanialszą rzeczą jaką dało nam nowoczesne społeczeństwo,
jest niesamowita wręcz łatwość unikania kontaktów z nim ...
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To: pgsql-docs@postgresql.org
Cc: depesz@depesz.pl, al_nunes@ciclotecnologia.com.br
Subject: Re: Trigger Documentation
In-Reply-To: <20010610093544.14c48d82.depesz@depesz.pl>
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