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From "Owen O'Malley (JIRA)" <>
Subject [jira] [Updated] (HIVE-4475) Switch RCFile default to LazyBinaryColumnarSerDe
Date Mon, 20 May 2013 23:51:16 GMT


Owen O'Malley updated HIVE-4475:

       Resolution: Fixed
    Fix Version/s: 0.12.0
     Release Note: This changes the default serde of tables that are created based on RCFile.
     Hadoop Flags: Incompatible change
           Status: Resolved  (was: Patch Available)

I just committed this. Thanks, Gunther!
> Switch RCFile default to LazyBinaryColumnarSerDe
> ------------------------------------------------
>                 Key: HIVE-4475
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>             Fix For: 0.12.0
>         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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