Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 214 invoked from network); 12 Feb 2011 13:04:35 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 12 Feb 2011 13:04:35 -0000 Received: (qmail 8187 invoked by uid 500); 12 Feb 2011 13:04:33 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 7939 invoked by uid 500); 12 Feb 2011 13:04:29 -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 7919 invoked by uid 99); 12 Feb 2011 13:04:28 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 12 Feb 2011 13:04:28 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of nguyen.filip@gmail.com designates 209.85.161.44 as permitted sender) Received: from [209.85.161.44] (HELO mail-fx0-f44.google.com) (209.85.161.44) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 12 Feb 2011 13:04:23 +0000 Received: by fxm9 with SMTP id 9so4147283fxm.31 for ; Sat, 12 Feb 2011 05:04:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:message-id:disposition-notification-to:date :from:user-agent:mime-version:to:subject:references:in-reply-to :content-type; bh=kpUfbQbdvZg841mnuEHw54/S65vLSAvu3ERcSC3PAaQ=; b=r1ar6/R/tVz6shYNSK7aCFfewywold78I7DTgG+y2y0FQSwN3WJCPOKV9I+Yp78rws apx1E4BomiUy25QpwahRtwUqbZrQT/mprk5eBhx8SgIemSfZzc1eUYZfDd8kbV+AL93T Q+HOr9dN0uKciGSvWICrT36PiJ4+1EF5/c5fg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:disposition-notification-to:date:from:user-agent :mime-version:to:subject:references:in-reply-to:content-type; b=biYHyt3THQoeof6aBiu3cg08reUT5TdV6fVTjqfBPgIRJ4+7mgFbSmDk+3DldYW14y GWXHTVmahaPp6OnhqJA0Z8AlHUPWQ4p31mHxXl1D7GN9GDbpoJIGkk0sFpx6/IX23OpO ItDW0bB7OJ3qL1gzRdRCSu64dTBZu1Ip2jnQc= Received: by 10.223.104.71 with SMTP id n7mr1897462fao.120.1297515841749; Sat, 12 Feb 2011 05:04:01 -0800 (PST) Received: from [192.168.0.100] (ip-94-113-100-48.net.upcbroadband.cz [94.113.100.48]) by mx.google.com with ESMTPS id y1sm166370fak.15.2011.02.12.05.04.00 (version=SSLv3 cipher=OTHER); Sat, 12 Feb 2011 05:04:00 -0800 (PST) Message-ID: <4D56853B.9030004@gmail.com> Date: Sat, 12 Feb 2011 14:03:55 +0100 From: Filip Nguyen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.13) Gecko/20101207 Lightning/1.0b2 Thunderbird/3.1.7 MIME-Version: 1.0 To: user@cassandra.apache.org Subject: Re: Indexes and hard disk References: <1297495441759-6018234.post@n2.nabble.com> <1297515364.13573.21.camel@dehora-laptop> In-Reply-To: <1297515364.13573.21.camel@dehora-laptop> Content-Type: multipart/alternative; boundary="------------080803080403080401050000" This is a multi-part message in MIME format. --------------080803080403080401050000 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 12.2.2011 13:56, Bill de hÓra wrote: > On Fri, 2011-02-11 at 23:24 -0800, mcasandra wrote: >> Are indexes supported in Cassandra? If yes then what kind? Also, if it's >> supported then please point me to the place that give more information about >> it. > Secondary Indexes: > > > > Why the secondary indexes are even present in Cassandra? I thought the point is that development in Cassandra is query driven, that when you want to search and fetch for example by birth date you should create new ColumnFamilly... --------------080803080403080401050000 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit
On 12.2.2011 13:56, Bill de hÓra wrote:
On Fri, 2011-02-11 at 23:24 -0800, mcasandra wrote:
Are indexes supported in Cassandra? If yes then what kind? Also, if it's
supported then please point me to the place that give more information about
it.

      Secondary Indexes:

<http://www.datastax.com/dev/blog/whats-new-cassandra-07-secondary-indexes>
<http://pycassa.github.com/pycassa/tutorial.html#indexes>

Why the secondary indexes are even present in Cassandra? I thought the point is that development in Cassandra is query driven, that when you want to search and fetch for example by birth date you should create new ColumnFamilly...

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