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 1A95E200C1D for ; Thu, 16 Feb 2017 09:40:48 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 177EA160B61; Thu, 16 Feb 2017 08:40:48 +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 64962160B57 for ; Thu, 16 Feb 2017 09:40:47 +0100 (CET) Received: (qmail 74184 invoked by uid 500); 16 Feb 2017 08:40:46 -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 74008 invoked by uid 99); 16 Feb 2017 08:40:45 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 Feb 2017 08:40:45 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id 7D0C4C05D7 for ; Thu, 16 Feb 2017 08:40:45 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -1.198 X-Spam-Level: X-Spam-Status: No, score=-1.198 tagged_above=-999 required=6.31 tests=[KAM_ASCII_DIVIDERS=0.8, KAM_LAZY_DOMAIN_SECURITY=1, RP_MATCHES_RCVD=-2.999, URIBL_BLOCKED=0.001] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id t7XI-J6TLmGO for ; Thu, 16 Feb 2017 08:40:44 +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 1B2C55F370 for ; Thu, 16 Feb 2017 08:40:44 +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 C52A7E07E1 for ; Thu, 16 Feb 2017 08:40:42 +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 10B1124138 for ; Thu, 16 Feb 2017 08:40:42 +0000 (UTC) Date: Thu, 16 Feb 2017 08:40:42 +0000 (UTC) From: "Lefty Leverenz (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Comment Edited] (HIVE-15227) Optimize join + gby into semijoin MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 16 Feb 2017 08:40:48 -0000 [ https://issues.apache.org/jira/browse/HIVE-15227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15717574#comment-15717574 ] Lefty Leverenz edited comment on HIVE-15227 at 2/16/17 8:40 AM: ---------------------------------------------------------------- Doc note: *hive.enable.semijoin.conversion* needs to be documented in the wiki for release 2.2.0. * [Configuration Properties -- Query and DDL Execution | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-QueryandDDLExecution] Added a TODOC2.2 label. Edit (16/Feb/17): HIVE-15894 changes the parameter name from *hive.enable.semijoin.conversion* to *hive.optimize.semijoin.conversion*, also in release 2.2.0. was (Author: lefty@hortonworks.com): Doc note: *hive.enable.semijoin.conversion* needs to be documented in the wiki for release 2.2.0. * [Configuration Properties -- Query and DDL Execution | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-QueryandDDLExecution] Added a TODOC2.2 label. > Optimize join + gby into semijoin > --------------------------------- > > Key: HIVE-15227 > URL: https://issues.apache.org/jira/browse/HIVE-15227 > Project: Hive > Issue Type: Bug > Components: Logical Optimizer > Reporter: Ashutosh Chauhan > Assignee: Ashutosh Chauhan > Labels: TODOC2.2 > Fix For: 2.2.0 > > Attachments: HIVE-15227.2.patch, HIVE-15227.3.patch, HIVE-15227.4.patch, HIVE-15227.patch > > > Calcite has a rule which can do this transformation. Lets take advantage of this since Hive has native Left semi join operator. -- This message was sent by Atlassian JIRA (v6.3.15#6346)