Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 1DB689B76 for ; Sat, 19 May 2012 18:18:01 +0000 (UTC) Received: (qmail 13208 invoked by uid 500); 19 May 2012 18:17:58 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 13183 invoked by uid 500); 19 May 2012 18:17:58 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 13175 invoked by uid 99); 19 May 2012 18:17:58 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 19 May 2012 18:17:58 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of janne.jalkanen@ecyrd.com designates 87.108.86.67 as permitted sender) Received: from [87.108.86.67] (HELO mail.ecyrd.com) (87.108.86.67) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 19 May 2012 18:17:51 +0000 Received: from liandra.elisa (a88-115-5-169.elisa-laajakaista.fi [88.115.5.169]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by mail.ecyrd.com (Postfix) with ESMTPSA id 7AC6C145210A for ; Sat, 19 May 2012 21:17:29 +0300 (EEST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1084) Subject: Re: Data aggregation - averages, sums, etc. From: Janne Jalkanen In-Reply-To: <972495380359121597.085627oleg.dulin-gmail.com@news.gmane.org> Date: Sat, 19 May 2012 21:17:28 +0300 Content-Transfer-Encoding: quoted-printable Message-Id: References: <972495380359121597.085627oleg.dulin-gmail.com@news.gmane.org> To: user@cassandra.apache.org X-Mailer: Apple Mail (2.1084) X-Virus-Checked: Checked by ClamAV on apache.org > 2. I know I have counter columns. I can do sums. But can I do averages = ? One counter column for the sum, one counter column for the count. Divide = for average :-) /Janne=