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From: Jim C. Nasby <jim@nasby.net>
To: Merlin Moncure <mmoncure@gmail.com>
Cc: Scott Marlowe <smarlowe@g2switchworks.com>
Cc: Carlo Stonebanks <stonec.register@sympatico.ca>
Cc: pgsql-performance@postgresql.org
Subject: Re: Performance Optimization for Dummies 2 - the SQL
Date: Sun, 8 Oct 2006 15:36:27 -0500
Message-ID: <20061008203627.GL72517@nasby.net> (raw)
In-Reply-To: <b42b73150610061153i3d11d7a4r23e1d7c5317feb9f@mail.gmail.com>
References: <b42b73150610031221y4955e663ped999a83a810d318@mail.gmail.com>
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	<1160153623.6181.13.camel@state.g2switchworks.com>
	<b42b73150610061153i3d11d7a4r23e1d7c5317feb9f@mail.gmail.com>

On Fri, Oct 06, 2006 at 02:53:35PM -0400, Merlin Moncure wrote:
> On 10/6/06, Scott Marlowe <smarlowe@g2switchworks.com> wrote:
> >On Fri, 2006-10-06 at 11:44, Carlo Stonebanks wrote:
> >> This didn't work right away, but DID work after running a VACUUM FULL. In
> >> other words, i was still stuck with a sequential scan until after the
> >> vacuum.
> >>
> >> I turned autovacuum off in order to help with the import, but was 
> >perfoming
> >> an ANALYZE with every 500 rows imported.
> 
> how did you determine that it is done every 500 rows? this is the
> default autovacuum paramater.  if you followed my earlier

Note that that parameter doesn't mean you'll get an analyze every 500
rows.
-- 
Jim Nasby                                            jim@nasby.net
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)



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