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 02749200CAE for ; Wed, 21 Jun 2017 10:57:04 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 0136E160BE2; Wed, 21 Jun 2017 08:57:04 +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 479D1160BD0 for ; Wed, 21 Jun 2017 10:57:03 +0200 (CEST) Received: (qmail 36027 invoked by uid 500); 21 Jun 2017 08:57:02 -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 36018 invoked by uid 99); 21 Jun 2017 08:57:02 -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; Wed, 21 Jun 2017 08:57:02 +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 1C2DCC0118 for ; Wed, 21 Jun 2017 08:57:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -100.002 X-Spam-Level: X-Spam-Status: No, score=-100.002 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id p-ZwkI4e3Ur9 for ; Wed, 21 Jun 2017 08:57:01 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id 3AC945FDCE for ; Wed, 21 Jun 2017 08:57:01 +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 B7D3DE0D9D for ; Wed, 21 Jun 2017 08:57:00 +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 19C3321946 for ; Wed, 21 Jun 2017 08:57:00 +0000 (UTC) Date: Wed, 21 Jun 2017 08:57:00 +0000 (UTC) From: "Rui Li (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-6348) Order by/Sort by in subquery MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Wed, 21 Jun 2017 08:57:04 -0000 [ https://issues.apache.org/jira/browse/HIVE-6348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16057207#comment-16057207 ] Rui Li commented on HIVE-6348: ------------------------------ [~ashutoshc], do you mean it's OK to break cases like input20? If so, can we go with v3 patch? Currently CBO won't run if query contains scripts or sortBy clause. > Order by/Sort by in subquery > ---------------------------- > > Key: HIVE-6348 > URL: https://issues.apache.org/jira/browse/HIVE-6348 > Project: Hive > Issue Type: Bug > Reporter: Gunther Hagleitner > Assignee: Rui Li > Priority: Minor > Labels: sub-query > Attachments: HIVE-6348.1.patch, HIVE-6348.2.patch, HIVE-6348.3.patch > > > select * from (select * from foo order by c asc) bar order by c desc; > in hive sorts the data set twice. The optimizer should probably remove any order by/sort by in the sub query unless you use 'limit '. Could even go so far as barring it at the semantic level. -- This message was sent by Atlassian JIRA (v6.4.14#64029)