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From "Prasanth J (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4123) The RLE encoding for ORC can be improved
Date Tue, 16 Jul 2013 22:00:49 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Prasanth J updated HIVE-4123:
-----------------------------

    Attachment: ORC-Compression-Ratio-Comparison.xlsx
    
> The RLE encoding for ORC can be improved
> ----------------------------------------
>
>                 Key: HIVE-4123
>                 URL: https://issues.apache.org/jira/browse/HIVE-4123
>             Project: Hive
>          Issue Type: New Feature
>          Components: File Formats
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: HIVE-4123.1.git.patch.txt, ORC-Compression-Ratio-Comparison.xlsx
>
>
> The run length encoding of integers can be improved:
> * tighter bit packing
> * allow delta encoding
> * allow longer runs

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