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 DAAC99C7B for ; Tue, 28 Aug 2012 19:34:55 +0000 (UTC) Received: (qmail 95620 invoked by uid 500); 28 Aug 2012 19:34:53 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 95520 invoked by uid 500); 28 Aug 2012 19:34:53 -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 95512 invoked by uid 99); 28 Aug 2012 19:34:53 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 28 Aug 2012 19:34:53 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=FSL_RCVD_USER,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of s5alye@gmail.com designates 209.85.212.172 as permitted sender) Received: from [209.85.212.172] (HELO mail-wi0-f172.google.com) (209.85.212.172) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 28 Aug 2012 19:34:47 +0000 Received: by wicr5 with SMTP id r5so6456974wic.7 for ; Tue, 28 Aug 2012 12:34:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=cU1LR2WDhTCqFiKrnVPJzG/SD7C70dRmzgjnBCXg15k=; b=MSnCaRjPbEb+5FOP4N2aB/T1kYwKSQSneKd0pnqTYXAnM6gv4USWvITNO6jpaZl9Lt DLe+DXrc3xlEtV1K/P8GYlaxw3B68KmsRODU75MateRJMflozRSqMmdv1w3+WKz+waC2 x7xuvSb231xMVf7zxH3/+sAKsm/NSgFxD3+9nmoiKtZh/gZigO39X/HK/nlth4aROsV1 AMKU2DSsALEAKsHbA7laVINQ2kbxv61e8N4IxSeZZLuChhzbfNP9X/LCLow3UnwiYZhu GZ2MyNcu9ouVKVBgY1WzLuFruIJsSRYPq5QjI8MMrC5ufS/WiVdXmCZV8/t6MGzTGfuK YggQ== MIME-Version: 1.0 Received: by 10.180.14.8 with SMTP id l8mr35059772wic.6.1346182465833; Tue, 28 Aug 2012 12:34:25 -0700 (PDT) Received: by 10.223.3.14 with HTTP; Tue, 28 Aug 2012 12:34:25 -0700 (PDT) Date: Tue, 28 Aug 2012 15:34:25 -0400 Message-ID: Subject: Advantage of pre-defining column metadata From: A J To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org For static column family what is the advantage in pre-defining column metadata ? I can see ease of understanding type of values that the CF contains and that clients will reject incompatible insertion. But are there any major advantages in terms of performance or something else that makes it beneficial to define the metadata upfront ? Thanks.