Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id A1F7B64FC2D for ; Wed, 24 Sep 2008 05:05:06 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 46343-09 for ; Wed, 24 Sep 2008 05:05:05 -0300 (ADT) Received: from news.hub.org (news.hub.org [200.46.204.72]) by postgresql.org (Postfix) with ESMTP id 0717E64FC04 for ; Wed, 24 Sep 2008 05:05:06 -0300 (ADT) Received: from news.hub.org (news.hub.org [200.46.204.72]) by news.hub.org (8.14.1/8.14.1) with ESMTP id m8O852w4061452 for ; Wed, 24 Sep 2008 05:05:02 -0300 (ADT) (envelope-from news@news.hub.org) Received: (from news@localhost) by news.hub.org (8.14.1/8.14.1/Submit) id m8O7gDCG037242 for pgsql-performance@postgresql.org; Wed, 24 Sep 2008 04:42:13 -0300 (ADT) (envelope-from news) From: "Sabin Coanda" X-Newsgroups: pgsql.performance Subject: Re: Different execution plan Date: Wed, 24 Sep 2008 10:42:24 +0300 Organization: Hub.Org Networking Services Lines: 12 Message-ID: References: X-Complaints-To: usenet@news.hub.org X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.3138 X-RFC2646: Format=Flowed; Response X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 To: pgsql-performance@postgresql.org X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200809/213 X-Sequence-Number: 31526 Hi Scott, I think it would be nice to log the reasons why an explain analyze chooses a specific way or another for an execution plan. This would avoid wasting time to find the source of these decisions from the existing logs. Is it possible ? TIA, Sabin