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 259C01084E for ; Thu, 2 Jan 2014 18:13:11 +0000 (UTC) Received: (qmail 25950 invoked by uid 500); 2 Jan 2014 18:08:18 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 25745 invoked by uid 500); 2 Jan 2014 18:08:09 -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 25448 invoked by uid 500); 2 Jan 2014 18:07:57 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 25360 invoked by uid 99); 2 Jan 2014 18:07:53 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 02 Jan 2014 18:07:53 +0000 Date: Thu, 2 Jan 2014 18:07:53 +0000 (UTC) From: "Eric Hanson (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-5757) Implement vectorized support for CASE 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-5757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13860421#comment-13860421 ] Eric Hanson commented on HIVE-5757: ----------------------------------- Updated patch per Sergey's feedback on RB. > Implement vectorized support for CASE > ------------------------------------- > > Key: HIVE-5757 > URL: https://issues.apache.org/jira/browse/HIVE-5757 > Project: Hive > Issue Type: Sub-task > Affects Versions: 0.13.0 > Reporter: Eric Hanson > Assignee: Eric Hanson > Attachments: HIVE-5757.1.patch, HIVE-5757.2.patch, HIVE-5757.3.patch, HIVE-5757.4.patch > > > Implement support for CASE in vectorized mode. The approach is to use the vectorized UDF adaptor internally. A higher-performance version that used VectorExpression subclasses was considered but not done due to complexity. Such a version potentially could be done in the future if it's important enough. > This is high priority because CASE is a fairly popular expression. -- This message was sent by Atlassian JIRA (v6.1.5#6160)