Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bB81F-0003Vp-9g for pgsql-sql@arkaria.postgresql.org; Thu, 09 Jun 2016 22:01:41 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1bB81E-0008DZ-Gr for pgsql-sql@arkaria.postgresql.org; Thu, 09 Jun 2016 22:01:40 +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_2) (envelope-from ) id 1bB81C-0008C5-M1 for pgsql-sql@postgresql.org; Thu, 09 Jun 2016 22:01:38 +0000 Received: from plane.gmane.org ([80.91.229.3]) by makus.postgresql.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.84_2) (envelope-from ) id 1bB815-00012L-6B for pgsql-sql@postgresql.org; Thu, 09 Jun 2016 22:01:37 +0000 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1bB806-0005cI-2u for pgsql-sql@postgresql.org; Fri, 10 Jun 2016 00:00:30 +0200 Received: from ppp-93-104-103-91.dynamic.mnet-online.de ([93.104.103.91]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 10 Jun 2016 00:00:30 +0200 Received: from spam_eater by ppp-93-104-103-91.dynamic.mnet-online.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 10 Jun 2016 00:00:30 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: pgsql-sql@postgresql.org From: Thomas Kellerer Subject: Re: What does it mean? Plan stats and double rainbows. Date: Thu, 9 Jun 2016 23:52:05 +0200 Lines: 10 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: ppp-93-104-103-91.dynamic.mnet-online.de User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.8.1.21) Gecko/20090302 Thunderbird/2.0.0.21 Mnenhy/0.7.5.666 In-Reply-To: X-Pg-Spam-Score: -3.8 (---) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-sql Precedence: bulk Sender: pgsql-sql-owner@postgresql.org Michael Moore schrieb am 09.06.2016 um 23:11: > I'm having a difficult time finding documentation on EXPLAIN PLAN stats. For example, in > ' -> Nested Loop Left Join (cost=0.43..1415.06 rows=2 width=1377) (actual time=0.093..0.093 rows=0 loops=1)' > what does 0.43..1415.06 mean? Is that a range? >If so, it seems rather pointless, like saying "somewhere between 0 and infinity". https://www.postgresql.org/docs/current/static/using-explain.html#USING-EXPLAIN-BASICS -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql