Return-Path: X-Original-To: apmail-hive-dev-archive@www.apache.org Delivered-To: apmail-hive-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 5B2CA960C for ; Mon, 8 Dec 2014 19:53:14 +0000 (UTC) Received: (qmail 2934 invoked by uid 500); 8 Dec 2014 19:53:13 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 2866 invoked by uid 500); 8 Dec 2014 19:53:13 -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 2854 invoked by uid 500); 8 Dec 2014 19:53:13 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 2851 invoked by uid 99); 8 Dec 2014 19:53:13 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 08 Dec 2014 19:53:13 +0000 Date: Mon, 8 Dec 2014 19:53:13 +0000 (UTC) From: "Chao (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-8920) SplitSparkWorkResolver doesn't work with UnionWork [Spark Branch] 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/HIVE-8920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14238371#comment-14238371 ] Chao commented on HIVE-8920: ---------------------------- In HIVE-9041, we aim to generate better operator plan for this case. Hopefully when it's resolved, this JIRA will also be automatically resolved. > SplitSparkWorkResolver doesn't work with UnionWork [Spark Branch] > ----------------------------------------------------------------- > > Key: HIVE-8920 > URL: https://issues.apache.org/jira/browse/HIVE-8920 > Project: Hive > Issue Type: Sub-task > Components: Spark > Affects Versions: spark-branch > Reporter: Chao > > The following query will not work: > {code} > from (select * from table0 union all select * from table1) s > insert overwrite table table3 select s.x, count(1) group by s.x > insert overwrite table table4 select s.y, count(1) group by s.y; > {code} > Currently, the plan for this query, before SplitSparkWorkResolver, looks like below: > {noformat} > M1 M2 > \ / \ > U3 R5 > | > R4 > {noformat} > In {{SplitSparkWorkResolver#splitBaseWork}}, it assumes that the {{childWork}} is a ReduceWork, but for this case, you can see that for M2 the childWork could be UnionWork U3. Thus, the code will fail. -- This message was sent by Atlassian JIRA (v6.3.4#6332)