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Date: Mon, 27 May 2002 22:29:05 -0700 (PDT)
From: Stephan Szabo <sszabo@megazone23.bigpanda.com>
To: Stef Telford <stef@chronozon.artofdns.com>
Cc: <pgsql-sql@postgresql.org>
Subject: Re: Triggers and System Tables.
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On Mon, 27 May 2002, Stef Telford wrote:

>
> Hello,
> 	this is probably a really silly question, but where can i
> control wether or not the superuser/root user can create a trigger
> on a system table ?

In general this is not something you can safely do. I'm not sure if
pg_stat_activity modifications go through something that will fire
triggers, but in general you shouldn't expect that they will on system
tables.