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Re: Changing a trigger function

From: "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com>
To: pgsql-novice(at)postgresql(dot)org
Subject: Re: Changing a trigger function
Date: 2008-04-24 09:22:44
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Lists: pgsql-novice
am  Thu, dem 24.04.2008, um 11:08:12 +0200 mailte Didier Gasser-Morlay folgendes:
> I have found a nasty bug in one of the trigger function I did put into
> production a couple of days ago. I have a fix for it but wonder if I
> can put it into the production database with users connected on it.
> What would happen if someone sends an update firing that trigger
> whilst I am in the middle of updating it  via a create or update ? Do
> I need to wait for this evening or can I safely runs the update of the
> function ?

All works within a TRANSACTION. If you change the function while the old
version are running for an other transaction, the other transaction has
the old version until the end.

In other words: you can change the function without problems.

Andreas Kretschmer
Kontakt:  Heynitz: 035242/47150,   D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID:   0x3FFF606C, privat 0x7F4584DA

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Subject: Re: Changing a trigger function
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