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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Deleted] (HIVE-4123) The RLE encoding for ORC can be improved
Date Sun, 11 Aug 2013 22:22:47 GMT

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

Owen O'Malley updated HIVE-4123:
--------------------------------

    Comment: was deleted

(was: Reupload to get a fresh jenkins run.)
    
> 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
>    Affects Versions: 0.12.0
>            Reporter: Owen O'Malley
>            Assignee: Prasanth J
>              Labels: orcfile
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4123.1.git.patch.txt, HIVE-4123.2.git.patch.txt, HIVE-4123.3.patch.txt,
HIVE-4123.4.patch.txt, HIVE-4123.5.txt, HIVE-4123.6.txt, HIVE-4123.7.txt, HIVE-4123.8.txt,
HIVE-4123.8.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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