From: Jim C. Nasby <jnasby@pervasive.com>
To: Brendan Duddridge <brendan@clickspace.com>
Cc: Luke Lonergan <llonergan@greenplum.com>
Cc: G?briel ?kos <akos.gabriel@i-logic.hu>
Cc: pgsql-performance@postgresql.org
Subject: Re: count(*) performance
Date: Tue, 28 Mar 2006 11:26:35 -0600
Message-ID: <20060328172634.GM75181@pervasive.com> (raw)
In-Reply-To: <CE860B90-6CAB-441A-870B-397696599418@clickspace.com>
References: <C04D6B95.20285%llonergan@greenplum.com>
<CE860B90-6CAB-441A-870B-397696599418@clickspace.com>
On Mon, Mar 27, 2006 at 12:20:54PM -0700, Brendan Duddridge wrote:
> Does that mean that even though autovacuum is turned on, you still
> should do a regular vacuum analyze periodically?
Doing a periodic vacuumdb -avz and keeping an eye on the last few lines
isn't a bad idea. It would also be helpful if there was a log parser
that could take a look at the output of a vacuumdb -av and look for any
problem areas, such as relations that have a lot of free space in them.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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To: pgsql-performance@postgresql.org
Cc: jnasby@pervasive.com, brendan@clickspace.com, llonergan@greenplum.com, akos.gabriel@i-logic.hu
Subject: Re: count(*) performance
In-Reply-To: <20060328172634.GM75181@pervasive.com>
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