Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1ZSQJI-00033B-Bi for pgsql-hackers@arkaria.postgresql.org; Thu, 20 Aug 2015 13:55:16 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84) (envelope-from ) id 1ZSQJH-0006oo-Uk for pgsql-hackers@arkaria.postgresql.org; Thu, 20 Aug 2015 13:55:15 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84) (envelope-from ) id 1ZSQJG-0006mJ-UW for pgsql-hackers@postgresql.org; Thu, 20 Aug 2015 13:55:15 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84) (envelope-from ) id 1ZSQJD-0002l3-Ue for pgsql-hackers@postgresql.org; Thu, 20 Aug 2015 13:55:13 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.4/8.14.4) with ESMTP id t7KDslop017310; Thu, 20 Aug 2015 09:54:47 -0400 From: Tom Lane To: Greg Stark cc: Peter Geoghegan , Pg Hackers , Heikki Linnakangas , Robert Haas , Simon Riggs Subject: Re: Using quicksort for every external sort run In-reply-to: References: Comments: In-reply-to Greg Stark message dated "Thu, 20 Aug 2015 14:05:07 +0100" Date: Thu, 20 Aug 2015 09:54:47 -0400 Message-ID: <17309.1440078887@sss.pgh.pa.us> X-Pg-Spam-Score: -2.5 (--) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-hackers Precedence: bulk Sender: pgsql-hackers-owner@postgresql.org Greg Stark writes: > Alternately, has anyone tested whether Timsort would work well? I think that was proposed a few years ago and did not look so good in simple testing. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers