From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200207130213.g6D2DBX02816@candle.pha.pa.us>
Subject: Re: Query kill
In-Reply-To: <3D2F1798.E65AC418@Yahoo.com>
To: Jan Wieck <JanWieck@Yahoo.com>
Date: Fri, 12 Jul 2002 22:13:11 -0400 (EDT)
Cc: Rudi Starcevic <rudi@oasis.net.au>, pgsql-sql@postgresql.org
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Jan Wieck wrote:
> Bruce Momjian wrote:
> > 
> > Rudi Starcevic wrote:
> > > Hello,
> > >
> > > If I write a query that is inefficient or in an eternal loop how
> > > do I stop it without restarting the postmaster ?
> > >
> > > I can see many postmaster processed appearing in the output of the 'ps'
> > > command.
> > > Do I need to stop/kill them all or can I stop just the query I want ?
> > 
> > Just send a SIGINT to the process. That simulates a ^C, which works too
> > from the client like psql.
> 
> Doesn't the client need a signal handler for that and call
> PQcancelRequest() in that?

Every backend has that signal handler defined, I think.

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