Re: Triggers

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От Oliver Elphick
Тема Re: Triggers
Дата
Msg-id 1029506424.28779.564.camel@linda
обсуждение исходный текст
Ответ на Triggers  (Jean-Christian Imbeault <jc@mega-bucks.co.jp>)
Ответы Re: Triggers  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-general
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.Elphick@lfix.co.uk
Isle of Wight, UK
http://www.lfix.co.uk/oliver
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                 ========================================
     "And whatsoever ye shall ask in my name, that will I
      do, that the Father may be glorified in the Son."
                                          John 14:13


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