Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 37C95DD05 for ; Wed, 1 Aug 2012 21:45:19 +0000 (UTC) Received: (qmail 28619 invoked by uid 500); 1 Aug 2012 21:45:17 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 28575 invoked by uid 500); 1 Aug 2012 21:45:17 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 28565 invoked by uid 99); 1 Aug 2012 21:45:17 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 01 Aug 2012 21:45:17 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=FSL_RCVD_USER,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of chilinglam@gmail.com designates 209.85.215.41 as permitted sender) Received: from [209.85.215.41] (HELO mail-lpp01m010-f41.google.com) (209.85.215.41) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 01 Aug 2012 21:45:11 +0000 Received: by lahi5 with SMTP id i5so6000221lah.14 for ; Wed, 01 Aug 2012 14:44:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=Iuh1tqoD3LoQgqAiTNiXc2STGeH+nAkWdTLcDkB0Bpk=; b=KkJED3UFSyVx5EJNAkZ6Amv+yur3atT5rJM343yd7yF0BaobtctzlY6exjot+xqwhE Zo/kbUe/aIVrFLjHlfiT/Ai6KAV4s7lgDK6D/6L0C1B7m5mzn/tKuPAsm3BYOL2tKi62 NWTfXDPI2nYiqNlbkq7HgZS/QFDmHxb3JgEq81cacqKpThlIw2ay4uI6E0LFD4jDTiUN /W0Klk069wy+3TsWdCL6ogzlrycfZI+HCumsX5XXAYJkQEROc5uh4fwHbizKcXjNHcYq GvAbc+CJSWIMhcLvKt7k6Rm4h1+dKS4alpDSOVADEOmhg6MKJE47+OFgZXKbgxQOqtmq z96A== MIME-Version: 1.0 Received: by 10.112.24.229 with SMTP id x5mr8773457lbf.23.1343857489707; Wed, 01 Aug 2012 14:44:49 -0700 (PDT) Received: by 10.114.29.98 with HTTP; Wed, 1 Aug 2012 14:44:49 -0700 (PDT) Date: Wed, 1 Aug 2012 17:44:49 -0400 Message-ID: Subject: Filter with State From: Jerry Lam To: user Content-Type: multipart/alternative; boundary=e0cb4efe323c4d818204c63b34c8 X-Virus-Checked: Checked by ClamAV on apache.org --e0cb4efe323c4d818204c63b34c8 Content-Type: text/plain; charset=ISO-8859-1 Hi HBase guru: >From Lars George talk, he mentions that filter has no state. What if I need to scan rows in which the decision to filter one row or not is based on the previous row's column values? Any idea how one can implement this type of logic? Best Regards, Jerry --e0cb4efe323c4d818204c63b34c8--