Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 96088 invoked from network); 29 Apr 2010 13:32:11 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 29 Apr 2010 13:32:11 -0000 Received: (qmail 44409 invoked by uid 500); 29 Apr 2010 13:32:10 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 44389 invoked by uid 500); 29 Apr 2010 13:32:10 -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 44381 invoked by uid 99); 29 Apr 2010 13:32:10 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 29 Apr 2010 13:32:10 +0000 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of jesse.mcconnell@gmail.com designates 209.85.212.172 as permitted sender) Received: from [209.85.212.172] (HELO mail-px0-f172.google.com) (209.85.212.172) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 29 Apr 2010 13:32:04 +0000 Received: by pxi19 with SMTP id 19so3484121pxi.31 for ; Thu, 29 Apr 2010 06:31:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=oJmLSFIQHHG+kwcbV7aaPZNHJx4Kv93WTHGreVgPy1E=; b=QOmifH/NWT4fnv46E4Kp7zUpUjUJwIyxs/pPOZwxkE/AY0cobSmmN11c1qFs8ZPE6c Bd0isf62Z0fi3nY/QX9qldkCwQwie+53hKVcjjUvGbq5VqN+a7xqCQ3d6quNt3r7aToe 8Cfsnx/cAF4erd5eoZnDKO87kKpcwj1jxvsTY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=cNMbJ5xW0ESpKqOQmqm0yJzgxW1JCzSb7QPNE67lljy98B8gWJd250pKfIEO++8ZCg zmnY8Km6x1V+2/6sVOx69kmr25gG8uHJjnI890JQDJU1k3yB+6t8szyDaa6WBZEJ6otq FAn+jBLBOO+IbZrDLFDk8IbhA3vz9UI7Ydz8U= MIME-Version: 1.0 Received: by 10.142.210.21 with SMTP id i21mr5610677wfg.16.1272547902829; Thu, 29 Apr 2010 06:31:42 -0700 (PDT) Received: by 10.142.83.9 with HTTP; Thu, 29 Apr 2010 06:31:42 -0700 (PDT) In-Reply-To: References: Date: Thu, 29 Apr 2010 08:31:42 -0500 Message-ID: Subject: Re: Basic Architecture Question From: Jesse McConnell To: user@cassandra.apache.org Content-Type: text/plain; charset=UTF-8 X-Virus-Checked: Checked by ClamAV on apache.org apparently there is now range query support for getting all keys using the RP... cheers, jesse -- jesse mcconnell jesse.mcconnell@gmail.com On Thu, Apr 29, 2010 at 08:16, David Boxenhorn wrote: > We want to store objects in Cassandra. In general, the mapping is quite > easy. But for some kinds of objects, we want to be able to read all of them > into memory. > > We want to use random partitioning, which means that we can't do a range > query over keys (is this right?). Is there any way to get ALL the keys > directly (order is not important)? Or do I need to define a separate column > family, and save all the keys in a single column of that family? Or... > something else? >