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Re: count(*) performance

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Brendan Duddridge <brendan(at)clickspace(dot)com>
Cc: Luke Lonergan <llonergan(at)greenplum(dot)com>, Gábriel Ákos <akos(dot)gabriel(at)i-logic(dot)hu>,pgsql-performance(at)postgresql(dot)org
Subject: Re: count(*) performance
Date: 2006-03-27 19:35:28
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
Brendan Duddridge wrote:
> Does that mean that even though autovacuum is turned on, you still  
> should do a regular vacuum analyze periodically?

No, it probably means you have set FSM settings too low, or not tuned
the autovacuum parameters to your specific situation.

A bug in the autovacuum daemon is not unexpected however, so if it
doesn't work after tuning, let us know.

Alvaro Herrera                      
The PostgreSQL Company - Command Prompt, Inc.

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