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 5FE60FF8C for ; Thu, 28 Mar 2013 19:44:19 +0000 (UTC) Received: (qmail 19254 invoked by uid 500); 28 Mar 2013 19:44:16 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 19196 invoked by uid 500); 28 Mar 2013 19:44:16 -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 19188 invoked by uid 99); 28 Mar 2013 19:44:16 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 28 Mar 2013 19:44:16 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of marko.asplund@gmail.com designates 209.85.214.181 as permitted sender) Received: from [209.85.214.181] (HELO mail-ob0-f181.google.com) (209.85.214.181) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 28 Mar 2013 19:44:11 +0000 Received: by mail-ob0-f181.google.com with SMTP id ni5so9552632obc.26 for ; Thu, 28 Mar 2013 12:43:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:mime-version:from:date:message-id:subject:to :content-type; bh=4+7YWSxjqwRW6Pb8WuomGd+46MN490RSprVDy+maVnA=; b=kwUTyx3G8H8iz+ae8S2cWu1wb0cCmEaj68Gk0no237Clb5h+7wTnPw4prQxpK1EBXh AaUHfwLnb6tHwKNb7g92TsFZsp92O/9ZgqIe3soBJO5v5LWo/9QeqoGU5/9yl2dcP8n0 l9seQCfQNPvwTkoyqGBc9bQL1IdV8YPV05tkNlyEeamQHqXSdNEBoojjQKOfYtjd7a/s DvJkDWOlk0Kwo2YWCxmN6WIhcNWBK/u3lD6dhYEyjw9xPc9t8rawDqRpuUUxdVn3+SIf DbwJn1NkYMMfokHXFkkTBXXj0qQyoFjEtfmpLJodDJ3p3jNw3ECLLZ8utxT1JCtJVyCt Dugg== X-Received: by 10.182.118.105 with SMTP id kl9mr6063951obb.52.1364499830698; Thu, 28 Mar 2013 12:43:50 -0700 (PDT) MIME-Version: 1.0 Received: by 10.182.115.232 with HTTP; Thu, 28 Mar 2013 12:43:10 -0700 (PDT) From: Marko Asplund Date: Thu, 28 Mar 2013 21:43:10 +0200 Message-ID: Subject: Re: CQL vs. non-CQL data models To: user@cassandra.apache.org Content-Type: text/plain; charset=UTF-8 X-Virus-Checked: Checked by ClamAV on apache.org Hi, Thanks for the helpful reply, Aaron! I also found this Datastax blog post very helpful in this case: http://www.datastax.com/dev/blog/thrift-to-cql3 marko Aaron Morton wrote: >> Is this data model defined by Thrift? How closely does it reflect the >> Cassandra internal data model? > Yes. > Astynax is a thrift based API, and the thrift model closely matches the internal model. > CQL 3 provides some abstractions on top of the internal model. > >> Is there any documentation or other online pointers describing these >> different data models? >See data modelling http://www.datastax.com/docs