From dev-return-61446-archive-asf-public=cust-asf.ponee.io@phoenix.apache.org Tue Jun 16 10:11:02 2020 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 [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 25526180621 for ; Tue, 16 Jun 2020 12:11:02 +0200 (CEST) Received: (qmail 16618 invoked by uid 500); 16 Jun 2020 10:11:01 -0000 Mailing-List: contact dev-help@phoenix.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@phoenix.apache.org Delivered-To: mailing list dev@phoenix.apache.org Received: (qmail 16606 invoked by uid 99); 16 Jun 2020 10:11:01 -0000 Received: from mailrelay1-us-west.apache.org (HELO mailrelay1-us-west.apache.org) (209.188.14.139) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 16 Jun 2020 10:11:01 +0000 Received: from jira-he-de.apache.org (static.172.67.40.188.clients.your-server.de [188.40.67.172]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 8B33E40F60 for ; Tue, 16 Jun 2020 10:11:00 +0000 (UTC) Received: from jira-he-de.apache.org (localhost.localdomain [127.0.0.1]) by jira-he-de.apache.org (ASF Mail Server at jira-he-de.apache.org) with ESMTP id 0622678017E for ; Tue, 16 Jun 2020 10:11:00 +0000 (UTC) Date: Tue, 16 Jun 2020 10:11:00 +0000 (UTC) From: "chenglei (Jira)" To: dev@phoenix.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (PHOENIX-5956) Optimize LeftSemiJoin For SortMergeJoin MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/PHOENIX-5956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] chenglei updated PHOENIX-5956: ------------------------------ Description: When LHS left semi join RHS through {{SortMergeJoinPlan}}, if RHS is end and returns null, then the left semi join could end early, but for {{SortMergeJoinPlan.SemiAntiJoinIterator}} , it would continue until LHS is exhausted even if RHS returns null, which is unnecessary. (was: When LHS left semi join RHS through SortMergeJoin, if RHS is end and returns null, then the left semi join could end early, but for {{SortMergeJoinPlan.SemiAntiJoinIterator}} , it would continue until LHS is exhausted even if RHS returns null, which is unnecessary.) > Optimize LeftSemiJoin For SortMergeJoin > ---------------------------------------- > > Key: PHOENIX-5956 > URL: https://issues.apache.org/jira/browse/PHOENIX-5956 > Project: Phoenix > Issue Type: Improvement > Affects Versions: 4.15.0 > Reporter: chenglei > Assignee: chenglei > Priority: Major > Fix For: 5.1.0, 4.16.0 > > Attachments: PHOENIX-5956_v1-4.x.patch > > > When LHS left semi join RHS through {{SortMergeJoinPlan}}, if RHS is end and returns null, then the left semi join could end early, but for {{SortMergeJoinPlan.SemiAntiJoinIterator}} , it would continue until LHS is exhausted even if RHS returns null, which is unnecessary. -- This message was sent by Atlassian Jira (v8.3.4#803005)