From issues-return-114330-archive-asf-public=cust-asf.ponee.io@hive.apache.org Mon Apr 23 00:05:05 2018 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id B8E49180625 for ; Mon, 23 Apr 2018 00:05:04 +0200 (CEST) Received: (qmail 7224 invoked by uid 500); 22 Apr 2018 22:05:03 -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 7215 invoked by uid 99); 22 Apr 2018 22:05:03 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 22 Apr 2018 22:05:03 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id 7628F1A1811 for ; Sun, 22 Apr 2018 22:05:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -102.311 X-Spam-Level: X-Spam-Status: No, score=-102.311 tagged_above=-999 required=6.31 tests=[RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id uYrQ1-elQAaf for ; Sun, 22 Apr 2018 22:05:02 +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 72C905FB9C for ; Sun, 22 Apr 2018 22:05:02 +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 26A80E0CEF for ; Sun, 22 Apr 2018 22:05:01 +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 49ABE241C7 for ; Sun, 22 Apr 2018 22:05:00 +0000 (UTC) Date: Sun, 22 Apr 2018 22:05:00 +0000 (UTC) From: "Matt McCline (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HIVE-12369) Native Vector GroupBy (Part 1) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HIVE-12369?page=3Dcom.atlassia= n.jira.plugin.system.issuetabpanels:all-tabpanel ] Matt McCline updated HIVE-12369: -------------------------------- Attachment: HIVE-12369.0991.patch > Native Vector GroupBy (Part 1) > ------------------------------ > > Key: HIVE-12369 > URL: https://issues.apache.org/jira/browse/HIVE-12369 > Project: Hive > Issue Type: Bug > Components: Hive > Reporter: Matt McCline > Assignee: Matt McCline > Priority: Critical > Attachments: HIVE-12369.01.patch, HIVE-12369.02.patch, HIVE-12369= .05.patch, HIVE-12369.06.patch, HIVE-12369.091.patch, HIVE-12369.094.patch,= HIVE-12369.095.patch, HIVE-12369.096.patch, HIVE-12369.097.patch, HIVE-123= 69.098.patch, HIVE-12369.099.patch, HIVE-12369.0991.patch > > > Implement Native Vector GroupBy using fast hash table technology develope= d for Native Vector MapJoin, etc. > Patch is currently limited to a single COUNT aggregation.=C2=A0 Or, no ag= gregation also known as duplicate reduction. > Here are examples of=C2=A0new kinds of classes introduces that stored the= count in the slot table and don't allocate hash elements: > {noformat} > COUNT(column) VectorGroupByHashLongKeySingleCountColumnOperator = =20 > COUNT(key) VectorGroupByHashLongKeySingleCountKeyOperator = =20 > COUNT(*) VectorGroupByHashLongKeySingleCountStarOperator = =20 > {noformat} > And the duplicate reduction operator a single key.=C2=A0 Example: > {noformat} > VectorGroupByHashLongKeyDuplicateReductionOperator > {noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005)