Re: Triggers

From: Oliver Elphick <olly(at)lfix(dot)co(dot)uk>
To: Jean-Christian Imbeault <jc(at)mega-bucks(dot)co(dot)jp>
Cc: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Triggers
Date: 2002-08-16 14:00:23
Message-ID: 1029506424.28779.564.camel@linda
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On Fri, 2002-08-16 at 14:42, Jean-Christian Imbeault wrote:
> I have a with a a column defined as not null. The value however can be
> found by looking it up in another table. I would like to create a
> trigger that after insert would look up the need value and put it in the
> record being inserted.
>
> Unfortunately the column is defined as not null so I fear the insert
> would fail and the trigger never get called. How can I get around this?

Surely you can use a BEFORE trigger, can't you?

--
Oliver Elphick Oliver(dot)Elphick(at)lfix(dot)co(dot)uk
Isle of Wight, UK
http://www.lfix.co.uk/oliver
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