Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TRqxi-0002w9-6l for pgsql-performance@postgresql.org; Fri, 26 Oct 2012 20:57:02 +0000 Received: from sam.nabble.com ([216.139.236.26]) by magus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1TRqxe-0003Xz-9F for pgsql-performance@postgresql.org; Fri, 26 Oct 2012 20:57:01 +0000 Received: from [192.168.236.26] (helo=sam.nabble.com) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1TRqxc-0005ts-AB for pgsql-performance@postgresql.org; Fri, 26 Oct 2012 13:56:56 -0700 Date: Fri, 26 Oct 2012 13:56:56 -0700 (PDT) From: robcron To: pgsql-performance@postgresql.org Message-ID: <1351285016309-5729768.post@n5.nabble.com> In-Reply-To: <1351283186158-5729764.post@n5.nabble.com> References: <1351276200087-5729749.post@n5.nabble.com> <1901.1351281512@sss.pgh.pa.us> <1351283186158-5729764.post@n5.nabble.com> Subject: Re: Slower Performance on Postgres 9.1.6 vs 8.2.11 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -0.8 (/) X-Archive-Number: 201210/326 X-Sequence-Number: 48285 Okay, so I took EXPLAIN ANALYZE off and made sure that timing is on "psql" command \timing shows Timing = on Run the query several times.. 9.1.6 runs this query an average of 354 ms 8.2.11 runs this query an average of 437 ms So 9.1 IS FASTER Why is EXPLAIN ANALYZE showing the reverse...of that...? Evidently, since I fixed the database Collation ( set to a value of "C") it has been faster but I got locked into looking at the EXPLAIN ANALYZE results... MMMM very curious. Rob -- View this message in context: http://postgresql.1045698.n5.nabble.com/Slower-Performance-on-Postgres-9-1-6-vs-8-2-11-tp5729749p5729768.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com.