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 BF2D31110B for ; Fri, 27 Jun 2014 06:29:25 +0000 (UTC) Received: (qmail 24494 invoked by uid 500); 27 Jun 2014 06:29:25 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 24422 invoked by uid 500); 27 Jun 2014 06:29:25 -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 24408 invoked by uid 500); 27 Jun 2014 06:29:25 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 24405 invoked by uid 99); 27 Jun 2014 06:29:25 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 27 Jun 2014 06:29:25 +0000 Date: Fri, 27 Jun 2014 06:29:25 +0000 (UTC) From: "Lefty Leverenz (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-6013) Supporting Quoted Identifiers in Column Names 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-6013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14045607#comment-14045607 ] Lefty Leverenz commented on HIVE-6013: -------------------------------------- The configuration parameter *hive.support.quoted.identifiers* is documented in the wiki: * [Configuration Properties -- hive.support.quoted.identifiers | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.support.quoted.identifiers] > Supporting Quoted Identifiers in Column Names > --------------------------------------------- > > Key: HIVE-6013 > URL: https://issues.apache.org/jira/browse/HIVE-6013 > Project: Hive > Issue Type: Improvement > Components: Query Processor > Reporter: Harish Butani > Assignee: Harish Butani > Fix For: 0.13.0 > > Attachments: HIVE-6013.1.patch, HIVE-6013.2.patch, HIVE-6013.3.patch, HIVE-6013.4.patch, HIVE-6013.5.patch, HIVE-6013.6.patch, HIVE-6013.7.patch, QuotedIdentifier.html > > > Hive's current behavior on Quoted Identifiers is different from the normal interpretation. Quoted Identifier (using backticks) has a special interpretation for Select expressions(as Regular Expressions). Have documented current behavior and proposed a solution in attached doc. > Summary of solution is: > - Introduce 'standard' quoted identifiers for columns only. > - At the langauage level this is turned on by a flag. > - At the metadata level we relax the constraint on column names. -- This message was sent by Atlassian JIRA (v6.2#6252)