Received: from maia.hub.org (maia-5.hub.org [200.46.204.29]) by mail.postgresql.org (Postfix) with ESMTP id 28A5E1337B5C for ; Fri, 28 Jan 2011 13:28:18 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.29]) (amavisd-maia, port 10024) with ESMTP id 74106-07 for ; Fri, 28 Jan 2011 17:28:11 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from tamriel.snowman.net (tamriel.snowman.net [72.66.115.51]) by mail.postgresql.org (Postfix) with ESMTP id E00E11337B53 for ; Fri, 28 Jan 2011 13:28:10 -0400 (AST) Received: by tamriel.snowman.net (Postfix, from userid 1000) id 6EFE1229CD; Fri, 28 Jan 2011 12:28:10 -0500 (EST) Date: Fri, 28 Jan 2011 12:28:10 -0500 From: Stephen Frost To: Scott Marlowe Cc: Robert Schnabel , "david@lang.hm" , pgsql-performance Subject: Re: How to best use 32 15k.7 300GB drives? Message-ID: <20110128172810.GE30352@tamriel.snowman.net> References: <4D41F92F.9030006@missouri.edu> <4D420D61.3000109@missouri.edu> <20110128131410.GC30352@tamriel.snowman.net> <4D42F127.9050307@missouri.edu> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="mVonZaCXjkyW6e25" Content-Disposition: inline In-Reply-To: X-Editor: Vim http://www.vim.org/ X-Info: http://www.snowman.net X-Operating-System: Linux/2.6.32-5-amd64 (x86_64) X-Uptime: 12:27:08 up 36 days, 16:15, 11 users, load average: 1.09, 1.07, 1.02 User-Agent: Mutt/1.5.20 (2009-06-14) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.91 tagged_above=-10 required=5 tests=BAYES_00=-1.9, T_RP_MATCHES_RCVD=-0.01 X-Spam-Level: X-Archive-Number: 201101/319 X-Sequence-Number: 42106 --mVonZaCXjkyW6e25 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline * Scott Marlowe (scott.marlowe@gmail.com) wrote: > There's nothing wrong with whole table updates as part of an import > process, you just have to know to "clean up" after you're done, and > regular vacuum can't fix this issue, only vacuum full or reindex or > cluster. Just to share my experiences- I've found that creating a new table and inserting into it is actually faster than doing full-table updates, if that's an option for you. Thanks, Stephen --mVonZaCXjkyW6e25 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAk1C/KoACgkQrzgMPqB3kijCOQCfUq8W51nsOugyqmZDQCY/DSIk pgMAnju8TV7TYkESx3ruN19pv/qNX7Q9 =aJBI -----END PGP SIGNATURE----- --mVonZaCXjkyW6e25--