Return-Path: Delivered-To: apmail-lucene-solr-user-archive@minotaur.apache.org Received: (qmail 63270 invoked from network); 8 Jun 2009 18:34:41 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 8 Jun 2009 18:34:41 -0000 Received: (qmail 32451 invoked by uid 500); 8 Jun 2009 18:34:52 -0000 Delivered-To: apmail-lucene-solr-user-archive@lucene.apache.org Received: (qmail 32383 invoked by uid 500); 8 Jun 2009 18:34:52 -0000 Mailing-List: contact solr-user-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: solr-user@lucene.apache.org Delivered-To: mailing list solr-user@lucene.apache.org Received: (qmail 32370 invoked by uid 99); 8 Jun 2009 18:34:52 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 08 Jun 2009 18:34:52 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of anithian@gmail.com designates 74.125.92.24 as permitted sender) Received: from [74.125.92.24] (HELO qw-out-2122.google.com) (74.125.92.24) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 08 Jun 2009 18:34:44 +0000 Received: by qw-out-2122.google.com with SMTP id 5so1967307qwd.53 for ; Mon, 08 Jun 2009 11:34:23 -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; bh=DVNN6Ploz3BBBGlevgOsY+aY5kKB9QgUCCV4FHGkTGo=; b=B0TFFfUGtk0U04mkRM2vBNRFdmmHBkkc6N43PAGQaKfqZxJlPZcagMf49fsszWuLci Hq+YuUmk5BkpuAQTk8IEwkl+b75rHMkSypNhF6vgAFAKmz9myuX/h89N7U/PDIUzeOTc Pru9axAq5cNp/DPZdbKik6wUA1tW+jtOyVGss= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:from:date:message-id:subject:to:content-type; b=QYXqNHqe1m6lrsLHRFmrVy8D5gxJTA5u3h3FfRroAbz9TlBKog0O+HVYsARfi/DDkb 20kMkx5PzRNtRqNwvbShwNiFfxBsQT6oMaT/srzOmDJ+MXuIq6+oUYl9lWUhmENskfPc bIfqRrD170eIJk/2En66fQTHhyhpOJM5IHfqU= MIME-Version: 1.0 Received: by 10.151.122.9 with SMTP id z9mr13237101ybm.188.1244486063079; Mon, 08 Jun 2009 11:34:23 -0700 (PDT) From: Amit Nithian Date: Mon, 8 Jun 2009 11:34:03 -0700 Message-ID: <9426f1770906081134m21d98915q7147223b0bca88c8@mail.gmail.com> Subject: Trie Patches- Backportable? To: solr-user@lucene.apache.org Content-Type: multipart/alternative; boundary=001e680f1ac4b7c53e046bda7dd4 X-Virus-Checked: Checked by ClamAV on apache.org --001e680f1ac4b7c53e046bda7dd4 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi, I am still using Solr 1.2 with the Lucene 2.2 that came with that version of Solr. I am interested in taking advantage of the trie filtering to alleviate some performance problems and was wondering how back-portable these patches are? I am also trying to understand how the Trie algorithm cuts down the number of term queries compared to a normal range query. I was at the recent Bay Area lucene/solr meetup where this was covered but missed some of the details. I know the ideal case is to upgrade to a newer Solr/Lucene but we are resource constrained and can't devote the time right now to test and upgrade our production systems to a newer Solr. Thanks! Amit --001e680f1ac4b7c53e046bda7dd4--