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Date: Fri, 24 Jan 2014 22:34:38 +0000 (UTC)
From: "Lefty Leverenz (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Message-ID: <JIRA.12684131.1386806695459.9633.1390602878860@arcas>
In-Reply-To: <JIRA.12684131.1386806695459@arcas>
References: <JIRA.12684131.1386806695459@arcas>
Subject: [jira] [Commented] (HIVE-6013) Supporting Quoted Identifiers in
 Column Names
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    [ https://issues.apache.org/jira/browse/HIVE-6013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13881495#comment-13881495 ] 

Lefty Leverenz commented on HIVE-6013:
--------------------------------------

Not in the wiki yet.  I'll bump its priority to the top.

> 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.


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