Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 33154 invoked from network); 15 Mar 2011 21:47:00 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 15 Mar 2011 21:47:00 -0000 Received: (qmail 95821 invoked by uid 500); 15 Mar 2011 21:46:58 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 95787 invoked by uid 500); 15 Mar 2011 21:46:58 -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 95779 invoked by uid 500); 15 Mar 2011 21:46:58 -0000 Delivered-To: apmail-incubator-cassandra-user@incubator.apache.org Received: (qmail 95776 invoked by uid 99); 15 Mar 2011 21:46:58 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 15 Mar 2011 21:46:58 +0000 X-ASF-Spam-Status: No, hits=2.0 required=5.0 tests=SPF_NEUTRAL,URI_HEX X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: 216.139.236.26 is neither permitted nor denied by domain of potekhin@bnl.gov) Received: from [216.139.236.26] (HELO sam.nabble.com) (216.139.236.26) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 15 Mar 2011 21:46:52 +0000 Received: from jim.nabble.com ([192.168.236.80]) by sam.nabble.com with esmtp (Exim 4.69) (envelope-from ) id 1Pzc4U-0005Ar-Fs for cassandra-user@incubator.apache.org; Tue, 15 Mar 2011 14:46:30 -0700 Date: Tue, 15 Mar 2011 14:46:30 -0700 (PDT) From: buddhasystem To: cassandra-user@incubator.apache.org Message-ID: <1300225590486-6174445.post@n2.nabble.com> Subject: Is column update column-atomic or row atomic? MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org Sorry for the rather primitive question, but it's not clear to me if I need to fetch the whole row, add a column as a dictionary entry and re-insert it if I want to expand the row by one column. Help will be appreciated. -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Is-column-update-column-atomic-or-row-atomic-tp6174445p6174445.html Sent from the cassandra-user@incubator.apache.org mailing list archive at Nabble.com.