Received: from makus.postgresql.org (makus.postgresql.org [98.129.198.125]) by mail.postgresql.org (Postfix) with ESMTP id 6263DCE6EC for ; Fri, 15 Jun 2012 16:37:18 -0300 (ADT) Received: from smtp.01.com ([199.36.142.181]) by makus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1SfcKb-0008IQ-DQ for pgsql-docs@postgreSQL.org; Fri, 15 Jun 2012 19:37:18 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id D8D833F631F; Fri, 15 Jun 2012 14:37:04 -0500 (CDT) X-Virus-Scanned: amavisd-new at smtp-out-1.01.com Received: from smtp.01.com ([127.0.0.1]) by localhost (smtp-out-1.01.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6dYJsuowNEPG; Fri, 15 Jun 2012 14:37:04 -0500 (CDT) Received: from smtp.01.com (localhost.localdomain [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id B29643F6693; Fri, 15 Jun 2012 14:37:04 -0500 (CDT) Received: from Sidney-Stratton.local (70-36-139-198.dsl.dynamic.sonic.net [70.36.139.198]) by smtp-out-1.01.com (Postfix) with ESMTPSA id 61C763F631F; Fri, 15 Jun 2012 14:37:04 -0500 (CDT) Message-ID: <4FDB8EDF.2080904@agliodbs.com> Date: Fri, 15 Jun 2012 12:37:03 -0700 From: Josh Berkus Organization: PostgreSQL Experts Inc. User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Jeff Davis CC: pgsql-docs@postgreSQL.org Subject: Re: Comment on max_locks_per_transaction References: <4FDB796A.7080803@agliodbs.com> <1339788314.16772.3.camel@sussancws0025> In-Reply-To: <1339788314.16772.3.camel@sussancws0025> X-Enigmail-Version: 1.4.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -1.9 (-) X-Archive-Number: 201206/5 X-Sequence-Number: 7364 On 6/15/12 12:25 PM, Jeff Davis wrote: > On Fri, 2012-06-15 at 11:05 -0700, Josh Berkus wrote: >> The default, 64, has historically proven sufficient for most databases, >> but you might need to raise this value if you have clients that touch >> many different tables in a single transaction. Databases with several >> tables with many partitions each can require raising this setting. > > Is "partition" defined somewhere else in the docs? > > Maybe it should say something like: "Extensive use of table inheritance > is the most common reason to increase this value from the default", > assuming that's what you meant. Hmmm. I think we should also say "partitioning", as well as "inheritance". Maybe: "Extensive use of table inheritance, such as for tables with many partitions, may require raising this setting." Works? -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com