Return-Path: Delivered-To: apmail-hive-dev-archive@www.apache.org Received: (qmail 60046 invoked from network); 26 Oct 2010 02:49:43 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 26 Oct 2010 02:49:43 -0000 Received: (qmail 703 invoked by uid 500); 26 Oct 2010 02:49:43 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 647 invoked by uid 500); 26 Oct 2010 02:49:43 -0000 Mailing-List: contact dev-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list dev@hive.apache.org Received: (qmail 639 invoked by uid 500); 26 Oct 2010 02:49:43 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 636 invoked by uid 99); 26 Oct 2010 02:49:43 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 26 Oct 2010 02:49:43 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.22] (HELO thor.apache.org) (140.211.11.22) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 26 Oct 2010 02:49:41 +0000 Received: from thor (localhost [127.0.0.1]) by thor.apache.org (8.13.8+Sun/8.13.8) with ESMTP id o9Q2nJqW004186 for ; Tue, 26 Oct 2010 02:49:19 GMT Message-ID: <22180728.71721288061359286.JavaMail.jira@thor> Date: Mon, 25 Oct 2010 22:49:19 -0400 (EDT) From: "Siying Dong (JIRA)" To: hive-dev@hadoop.apache.org Subject: [jira] Created: (HIVE-1750) Remove Partition Filtering Conditions when Possible MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 X-Virus-Checked: Checked by ClamAV on apache.org Remove Partition Filtering Conditions when Possible --------------------------------------------------- Key: HIVE-1750 URL: https://issues.apache.org/jira/browse/HIVE-1750 Project: Hive Issue Type: Improvement Reporter: Siying Dong For some simple queries, partition filtering constraints take 8% of CPU time (now 16% since we filter twice) even if the result is always true. When possible, we should remove these constraints to save CPU times. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.