From user-return-27297-apmail-cassandra-user-archive=cassandra.apache.org@cassandra.apache.org Sun Jul 1 06:49:02 2012 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 3F147D4D4 for ; Sun, 1 Jul 2012 06:49:02 +0000 (UTC) Received: (qmail 83661 invoked by uid 500); 1 Jul 2012 06:48:59 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 83642 invoked by uid 500); 1 Jul 2012 06:48:59 -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 83416 invoked by uid 99); 1 Jul 2012 06:48:59 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 01 Jul 2012 06:48:59 +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 (nike.apache.org: domain of jbellis@gmail.com designates 209.85.214.44 as permitted sender) Received: from [209.85.214.44] (HELO mail-bk0-f44.google.com) (209.85.214.44) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 01 Jul 2012 06:48:53 +0000 Received: by bkty8 with SMTP id y8so4233988bkt.31 for ; Sat, 30 Jun 2012 23:48:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; bh=pwQtNkMy9HY4QODwWO6EiV/RfPa+hK/Jrn+W6aD9wbI=; b=xLCzWuwJpBrz1XqHN+I3X2ITmp6sWGB/4Amp4QmHVWh+8N2/cM7S2ffVcLpPRzvrB9 /zw2s0iGT9qjq+7VROuMKKWlnXIPbSupclU1i2W9pdH8J/1pFgvweO+0a8QMVTxBprFf 5felpfWgTdX/5gDk7lV45cgXy2I3PqrejZonRQTPmfxusfzqEAacsaVHzAIwwroiNEgo LmgKqLkwXDvaOQHAoSCS1jjQ86G/Tkrc+3/fZH0Wl9TnGHCGwde1RwDEcBc0pSGPhV9V oNpwXaez2qskfHnuBoL3twFxxZPlXBtKudza/89y/eGST6Fq8LP2vQXREEIlinnm1eIP hAQA== Received: by 10.204.154.140 with SMTP id o12mr4510965bkw.139.1341125313116; Sat, 30 Jun 2012 23:48:33 -0700 (PDT) MIME-Version: 1.0 Received: by 10.204.33.203 with HTTP; Sat, 30 Jun 2012 23:48:12 -0700 (PDT) In-Reply-To: References: From: Jonathan Ellis Date: Sun, 1 Jul 2012 01:48:12 -0500 Message-ID: Subject: Re: Ball is rolling on High Performance Cassandra Cookbook second edition To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Wed, Jun 27, 2012 at 5:11 PM, Aaron Turner wrote: >=A0Honestly, I think using the same terms as a RDBMS does > makes users think they're exactly the same thing and have the same > properties... which is close enough in some cases, but dangerous in > others. The point is that thinking in terms of the storage engine is difficult and unnecessary. You can represent that data relationally, which is the Right Thing to do both because people are familiar with that world and because it decouples model from representation, which lets us change the latter if necessary. http://www.datastax.com/dev/blog/schema-in-cassandra-1-1 --=20 Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com