Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 79A2F200CE0 for ; Thu, 27 Jul 2017 03:28:08 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 78194169F14; Thu, 27 Jul 2017 01:28:08 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id BD19D169F0F for ; Thu, 27 Jul 2017 03:28:07 +0200 (CEST) Received: (qmail 46262 invoked by uid 500); 27 Jul 2017 01:28:05 -0000 Mailing-List: contact issues-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 issues@hive.apache.org Received: (qmail 46253 invoked by uid 99); 27 Jul 2017 01:28:05 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd1-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 27 Jul 2017 01:28:05 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd1-us-west.apache.org (ASF Mail Server at spamd1-us-west.apache.org) with ESMTP id 48F60C23D3 for ; Thu, 27 Jul 2017 01:28:05 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -99.202 X-Spam-Level: X-Spam-Status: No, score=-99.202 tagged_above=-999 required=6.31 tests=[KAM_ASCII_DIVIDERS=0.8, RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd1-us-west.apache.org [10.40.0.7]) (amavisd-new, port 10024) with ESMTP id uNSA15Gho8v9 for ; Thu, 27 Jul 2017 01:28:02 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 7632D5FE4D for ; Thu, 27 Jul 2017 01:28:01 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id A9447E0DAF for ; Thu, 27 Jul 2017 01:28:00 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 259F92481A for ; Thu, 27 Jul 2017 01:28:00 +0000 (UTC) Date: Thu, 27 Jul 2017 01:28:00 +0000 (UTC) From: "Ke Jia (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HIVE-17139) Conditional expressions optimization: skip the expression evaluation if the condition is not satisfied for vectorization engine. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 27 Jul 2017 01:28:08 -0000 [ https://issues.apache.org/jira/browse/HIVE-17139?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ke Jia updated HIVE-17139: -------------------------- Status: Patch Available (was: Open) > Conditional expressions optimization: skip the expression evaluation if the condition is not satisfied for vectorization engine. > -------------------------------------------------------------------------------------------------------------------------------- > > Key: HIVE-17139 > URL: https://issues.apache.org/jira/browse/HIVE-17139 > Project: Hive > Issue Type: Improvement > Reporter: Ke Jia > Assignee: Ke Jia > Attachments: HIVE-17139.1.patch, HIVE-17139.2.patch, HIVE-17139.3.patch > > > The case when and if statement execution for Hive vectorization is not optimal, which all the conditional and else expressions are evaluated for current implementation. The optimized approach is to update the selected array of batch parameter after the conditional expression is executed. Then the else expression will only do the selected rows instead of all. -- This message was sent by Atlassian JIRA (v6.4.14#64029)