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Posted to dev@hive.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2013/08/14 23:37:48 UTC

[jira] [Commented] (HIVE-4245) Implement numeric dictionaries in ORC

    [ https://issues.apache.org/jira/browse/HIVE-4245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13740229#comment-13740229 ] 

Owen O'Malley commented on HIVE-4245:
-------------------------------------

Pamela,
  Could you upload the current patch you have. I can help rebase it to the current trunk.

                
> Implement numeric dictionaries in ORC
> -------------------------------------
>
>                 Key: HIVE-4245
>                 URL: https://issues.apache.org/jira/browse/HIVE-4245
>             Project: Hive
>          Issue Type: New Feature
>          Components: File Formats
>            Reporter: Owen O'Malley
>            Assignee: Pamela Vagata
>
> For many applications, especially in de-normalized data, there is a lot of redundancy in the numeric columns. Therefore, it would make sense to adaptively use dictionary encodings for numeric columns in addition to string columns.

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