Return-Path: Delivered-To: apmail-lucene-hadoop-user-archive@locus.apache.org Received: (qmail 67953 invoked from network); 4 Dec 2007 01:10:52 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 4 Dec 2007 01:10:52 -0000 Received: (qmail 44383 invoked by uid 500); 4 Dec 2007 01:10:34 -0000 Delivered-To: apmail-lucene-hadoop-user-archive@lucene.apache.org Received: (qmail 44362 invoked by uid 500); 4 Dec 2007 01:10:34 -0000 Mailing-List: contact hadoop-user-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hadoop-user@lucene.apache.org Delivered-To: mailing list hadoop-user@lucene.apache.org Received: (qmail 44353 invoked by uid 99); 4 Dec 2007 01:10:34 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 03 Dec 2007 17:10:34 -0800 X-ASF-Spam-Status: No, hits=2.0 required=10.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: local policy) Received: from [216.252.111.223] (HELO web57207.mail.re3.yahoo.com) (216.252.111.223) by apache.org (qpsmtpd/0.29) with SMTP; Tue, 04 Dec 2007 01:10:13 +0000 Received: (qmail 6738 invoked by uid 60001); 4 Dec 2007 01:10:11 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type:Message-ID; b=RaD41Wr0gh9QpAX0zvp+uJztqrNPB87tWv56ki0zFmS1yKjjPHW48KfA1Wh5HecsHZ4+OU88+fLTkoQqqAtvOBBAEIloE82gziZWkf/n6+ebmOWgCk+B3UQ07wZOMagKZyel5/YiK2qjKvyrVTHX+cbqZY6cqCpNXVmy2D89t58=; X-YMail-OSG: aeMDuL4VM1kfICVvBUSfAslybM_q_srNEjtVVotXul9hPkJ_gn9wa9jWXDrWerbxMAIA7TOoGJhK1u1MRHvylivSZcp2.naLDqAWgKX1KGSd3i6xowrf2Yissq9q3OhZjssr3gXgnfx.SRE- Received: from [207.126.230.225] by web57207.mail.re3.yahoo.com via HTTP; Mon, 03 Dec 2007 17:10:11 PST X-Mailer: YahooMailRC/818.31 YahooMailWebService/0.7.157 Date: Mon, 3 Dec 2007 17:10:11 -0800 (PST) From: Rui Shi Subject: Multiple keys To: hadoop-user@lucene.apache.org MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1345206597-1196730611=:6120" Message-ID: <745195.6120.qm@web57207.mail.re3.yahoo.com> X-Virus-Checked: Checked by ClamAV on apache.org --0-1345206597-1196730611=:6120 Content-Type: text/plain; charset=us-ascii Hi, I need to sort the data by multiple keys. Is there any built-in support in Hadoop? Thanks, Rui ____________________________________________________________________________________ Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how. http://overview.mail.yahoo.com/ --0-1345206597-1196730611=:6120--