Re: count(*) performance - Mailing list pgsql-performance

From Markus Schaber
Subject Re: count(*) performance
Date
Msg-id 442922D9.1020402@logix-tt.com
Whole thread Raw
In response to Re: count(*) performance  (Gábriel Ákos <akos.gabriel@i-logic.hu>)
List pgsql-performance
Gábriel Ákos wrote:

> I thought that too. Autovacuum is running on our system but it didn't do
> the trick. Anyway the issue is solved, thank you all for helping. :)

Hi, Gabriel, it may be that your Free Space Map (FSM) setting is way to
low.

Try increasing it.

Btw, VACUUM outputs a Warning if FSM is not high enough, maybe you can
find useful hints in the log file.

HTH
Markus

--
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf.     | Software Development GIS

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