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Date: Mon, 13 Aug 2012 16:46:38 +1100 (NCT)
From: "Uma Maheswara Rao G (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Message-ID: <821164555.597.1344836798336.JavaMail.jiratomcat@arcas>
Subject: [jira] [Commented] (HIVE-352) Make Hive support column based
 storage
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    [ https://issues.apache.org/jira/browse/HIVE-352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13432931#comment-13432931 ] 

Uma Maheswara Rao G commented on HIVE-352:
------------------------------------------

{quote}
trying to specify or infer best compression technique per column much harder and something that can be done later
{quote}
Here we mentioned that, this improvement will be implemented later.
Could you please point me the right JIRA, where we started implementing this point or discuss?
                
> Make Hive support column based storage
> --------------------------------------
>
>                 Key: HIVE-352
>                 URL: https://issues.apache.org/jira/browse/HIVE-352
>             Project: Hive
>          Issue Type: New Feature
>            Reporter: He Yongqiang
>            Assignee: He Yongqiang
>             Fix For: 0.4.0
>
>         Attachments: 4-22 performace2.txt, 4-22 performance.txt, 4-22 progress.txt, hive-352-2009-4-15.patch, hive-352-2009-4-16.patch, hive-352-2009-4-17.patch, hive-352-2009-4-19.patch, hive-352-2009-4-22-2.patch, hive-352-2009-4-22.patch, hive-352-2009-4-23.patch, hive-352-2009-4-27.patch, hive-352-2009-4-30-2.patch, hive-352-2009-4-30-3.patch, hive-352-2009-4-30-4.patch, hive-352-2009-5-1-3.patch, hive-352-2009-5-1.patch, HIve-352-draft-2009-03-28.patch, Hive-352-draft-2009-03-30.patch
>
>
> column based storage has been proven a better storage layout for OLAP. 
> Hive does a great job on raw row oriented storage. In this issue, we will enhance hive to support column based storage. 
> Acctually we have done some work on column based storage on top of hdfs, i think it will need some review and refactoring to port it to Hive.
> Any thoughts?

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