Return-Path: Delivered-To: apmail-incubator-cassandra-dev-archive@minotaur.apache.org Received: (qmail 36113 invoked from network); 17 Aug 2009 18:11:57 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 17 Aug 2009 18:11:57 -0000 Received: (qmail 61348 invoked by uid 500); 17 Aug 2009 18:12:03 -0000 Delivered-To: apmail-incubator-cassandra-dev-archive@incubator.apache.org Received: (qmail 61335 invoked by uid 500); 17 Aug 2009 18:12:03 -0000 Mailing-List: contact cassandra-dev-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: cassandra-dev@incubator.apache.org Delivered-To: mailing list cassandra-dev@incubator.apache.org Received: (qmail 61325 invoked by uid 99); 17 Aug 2009 18:12:03 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 17 Aug 2009 18:12:03 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of eweaver@gmail.com designates 209.85.211.182 as permitted sender) Received: from [209.85.211.182] (HELO mail-yw0-f182.google.com) (209.85.211.182) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 17 Aug 2009 18:11:55 +0000 Received: by ywh12 with SMTP id 12so4158562ywh.12 for ; Mon, 17 Aug 2009 11:11:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:from:date:message-id :subject:to:content-type:content-transfer-encoding; bh=ACNQMGnxc9FrcVI1+CoCeiNjqkVSG2OzSH3bdfHDmHY=; b=LyC5DdaegM7T60t2YKlsyXA/uPJw4F2j9EG76lK1AG9fkcJYvieQx0Rn+IL91ercXY M/sVmfo7HKCYvtSXAodqU5ExwxAc+Yy8dc2UpDIREyJlSqrTSTcfRNtVshzXvi0i2osV sG5lWznnNm79Mm6U+KE9aWkksdRCqJfGuoUfo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:from:date:message-id:subject:to:content-type :content-transfer-encoding; b=AMfG3NqwamNrvJL576IEou5jL8Ubrmd3b7xWheg4VYUG92XAgETchPBapusxcQEd6M ZE1YtKUE5MEhp4vleHD/6IrgWvxCMAZamKy/mpTBF2Ic/rpnpvIrlprTsLKk4YEEVZK7 HYTswDOfY6Hjk9frLxovdqv2fouLV2LQuF9Ek= MIME-Version: 1.0 Received: by 10.150.174.13 with SMTP id w13mr6105674ybe.94.1250532694739; Mon, 17 Aug 2009 11:11:34 -0700 (PDT) From: Evan Weaver Date: Mon, 17 Aug 2009 14:11:14 -0400 Message-ID: Subject: Other database data models with significant usage To: cassandra-dev@incubator.apache.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org Just FYI: Cassandra (semi-structured): Keyspace Column family Row (w/key) Super column Column (w/value) SQL (relational): Database Table (w/column set) Row (w/key) Column (w/type and value) MongoDB (document DB): Database Collection Object (w/object id) Key (w/value) CouchDB (document DB): Database Document (w/name) Field (w/type and value) Dynamo/Dynomite/Voldemort (key/value store): Key (w/value) BigTable/HBase/Hypertable (semi-structured): Table Column family Row (w/key) Column (w/value) LDAP (hierarchical): Root (w/DN) ObjectClass Entry (w/RDN) Multi-valued attribute Attribute Neo4J (graph): Reference node (w/name) Node (w/name) Key (w/value) Relationship (w/nodepair) Key (w/value) -- Evan Weaver