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;