| From: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com> |
|---|---|
| To: | Brendan Duddridge <brendan(at)clickspace(dot)com> |
| Cc: | Luke Lonergan <llonergan(at)greenplum(dot)com>, G?briel ?kos <akos(dot)gabriel(at)i-logic(dot)hu>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: count(*) performance |
| Date: | 2006-03-28 17:26:35 |
| Message-ID: | 20060328172634.GM75181@pervasive.com |
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| Lists: | pgsql-performance |
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(at)pervasive(dot)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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