Horton

Re: [SQL] Monitoring a Query

Bruce Momjian <pgman@candle.pha.pa.us>

View thread View on postgr.es
From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Roberto Mello <rmello@cc.usu.edu>
Cc: Neil Conway <neilc@samurai.com>, Aaron Held <aaron@MetroNY.com>, pgsql-sql@postgresql.org, pgsql-general@postgresql.org
Date: 2002-09-24T00:27:56Z
Lists: pgsql-hackers, pgsql-general, pgsql-sql 
Roberto Mello wrote:
> On Mon, Sep 23, 2002 at 10:48:30AM -0400, Bruce Momjian wrote:
> > > > > 
> > > > > Would it be a good idea to add the time that the current query began
> > > > > execution at to pg_stat_activity?
> > > > 
> > > > What do people think about this?  It seems like a good idea to me.
> > > 
> > > OpenACS has a package called "Developer Support" that shows you (among
> > > other things) how long a query took to be executed. Very good to finding 
> > > out slow-running queries that need to be optimized.
> > 
> > 7.3 will have GUC 'log_duration' which will show query duration.
> 
> Forgive my ignorance here, but what is GUC? And how would I access the
> query duration?

GUC is postgresql.conf and SET commands.  They are variables that can be
set.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073