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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4475) Switch RCFile default to LazyBinaryColumnarSerDe
Date Wed, 15 May 2013 03:45:19 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13657867#comment-13657867
] 

Gunther Hagleitner commented on HIVE-4475:
------------------------------------------

Updated review as well: https://reviews.facebook.net/D10785
                
> Switch RCFile default to LazyBinaryColumnarSerDe
> ------------------------------------------------
>
>                 Key: HIVE-4475
>                 URL: https://issues.apache.org/jira/browse/HIVE-4475
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>         Attachments: HIVE-4475.1.patch, HIVE-4475.2.patch
>
>
> For most workloads it seems LazyBinaryColumnarSerDe (binary) will perform better than
ColumnarSerDe (text). Not sure why ColumnarSerDe is the default, but my guess is, that's for
historical reasons. I suggest switching the default.

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