Received: from makus.postgresql.org (makus.postgresql.org [98.129.198.125]) by mail.postgresql.org (Postfix) with ESMTP id B229E1E62E85 for ; Wed, 25 Apr 2012 14:08:26 -0300 (ADT) Received: from zql.com ([206.222.31.58]) by makus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1SN5hZ-0001ls-3Q for pgsql-performance@postgresql.org; Wed, 25 Apr 2012 17:08:26 +0000 Received: from localhost.localdomain ([127.0.0.1] helo=localhost) by zql.com with smtp (Exim 4.68) (envelope-from ) id 1SN5hL-0000Fr-RQ; Wed, 25 Apr 2012 13:08:11 -0400 From: "Greg Sabino Mullane" To: pgsql-performance@postgresql.org Subject: Re: Configuration Recommendations X-PGP-Key: 2529 DF6A B8F7 9407 E944 45B4 BC9B 9067 1496 4AC8 X-Request-PGP: http://www.biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8 In-Reply-To: Date: Wed, 25 Apr 2012 17:08:11 -0000 X-Mailer: JoyMail 2.4.0 Message-ID: <0c2259a177059d4f993856cb643d9c96@biglumber.com> X-Pg-Spam-Score: -1.9 (-) X-Archive-Number: 201204/141 X-Sequence-Number: 46787 -----BEGIN PGP SIGNED MESSAGE----- Hash: RIPEMD160 > Is it established practice in the Postgres world to separate indexes > from tables? I would assume that the reasoning of Richard Foote - > albeit for Oracle databases - is also true for Postgres: Yes, it's an established practice. I'd call it something just short of a best practice though, as it really depends on your situation. I'd take those articles with a grain of salt, as they are very Oracle-specific (e.g. we do not have fat indexes (yet!), nor segments). I also find his examples a bit contrived, and the whole "multi-user" argument irrelevant for common cases. I lean towards using separate tablespaces in Postgres, as the performance outweighs the additional complexity. It's down on the tuning list however: much more important is getting your kernel/volumes configured correctly, allocating shared_buffers sanely, separating pg_xlog, etc. - -- Greg Sabino Mullane greg@turnstep.com End Point Corporation http://www.endpoint.com/ PGP Key: 0x14964AC8 201204251304 http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8 -----BEGIN PGP SIGNATURE----- iEYEAREDAAYFAk+YL08ACgkQvJuQZxSWSsjR0wCfRF0fXpn7C7i5bZ6btDCT3+uX DU4AoIN3oSwPR+10F1N3jupCj5Dthjfh =EYGQ -----END PGP SIGNATURE-----