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;
