From: niraj patel <npa...@gridsolv.com>
Subject: Re: [PERFORM] Optimizing Bitmap Heap Scan.
To: "Grzegorz Jaśkiewicz" <gryz...@gmail.com>
Cc: pgsql-performance@postgresql.org
Date: Tuesday, December 8, 2009, 1:50 PM

Hi gryzman,

I have run vacuum full analyze on the cmrules tables. The version of pstgres is 
8.2.13. How should I change stats to 100 ?

Thanks
From: Grzegorz Jaśkiewicz <gryz...@gmail.com>
To: niraj patel <npa...@gridsolv.com>
Cc: pgsql-performance@postgresql.org
Sent: Tue, 8 December, 2009 7:12:49 PM
Subject:
 Re: [PERFORM] Optimizing Bitmap Heap Scan.

 it looks like it might choose wrong plan, cos it gets the stats wrong. 
Try increasing number of stats to 100. 
Btw, what version it is ?


in psql 
mydb=# set default_statistics_target = 100;

 




      

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