From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | gearond(at)cvc(dot)net |
Cc: | "Eric B(dot)Ridge" <ebr(at)tcdi(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: triggers |
Date: | 2003-03-06 20:07:49 |
Message-ID: | 200303062007.h26K7nd25888@candle.pha.pa.us |
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Lists: | pgsql-general |
Dennis Gearon wrote:
> So,
> I can make all the changes I want within a transaction, and no related triggers fire before
> the changes are are committed, right?
> The triggers work on the image of the data before the transaction is BEGINs,
> PLUS what it would look like with ALL UPDATES/DELETES in the tranaction being successfull?
> And there's now way to tell which triggers on what tables affected in the transaction will
> fire first, right?
In 7.3, triggers fire in alphabetical order, as do rules.
AFTER triggers are most needed when you need to see a value assigned by
the primary command, like the sequence number assigned to a column.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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