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From: Andrew Sullivan <ajs@crankycanuck.ca>
To: pgsql-performance@postgresql.org
Subject: Re: Performance query about large tables, lots of concurrent access
Date: Wed, 20 Jun 2007 14:15:11 -0400
Message-ID: <20070620181511.GC743@phlogiston.dyndns.org> (raw)
In-Reply-To: <46796B7E.1040501@metacarta.com>
References: <14291.1182221811@sss.pgh.pa.us>
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	<cone.1182267949.154012.90929.5001@35st.simplicato.com>
	<467963A8.2060703@metacarta.com>
	<cone.1182361987.297492.1867.5001@35st.simplicato.com>
	<46796B7E.1040501@metacarta.com>

On Wed, Jun 20, 2007 at 02:01:34PM -0400, Karl Wright wrote:
> (FWIW, ANALYZE operations are kicked off after every 30,000 inserts, 
> updates, or deletes, by the application itself).

I don't think you should do it that way.  I suspect that automatic
VACUUM ANALYSE way more often on each table -- like maybe in a loop
-- would be better for your case.  

A

-- 
Andrew Sullivan  | ajs@crankycanuck.ca
In the future this spectacle of the middle classes shocking the avant-
garde will probably become the textbook definition of Postmodernism. 
                --Brad Holland



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