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Posted to dev@hive.apache.org by "Pamela Vagata (JIRA)" <ji...@apache.org> on 2013/03/28 20:07:16 UTC

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

     [ https://issues.apache.org/jira/browse/HIVE-4245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pamela Vagata reassigned HIVE-4245:
-----------------------------------

    Assignee: Pamela Vagata  (was: Owen O'Malley)
    
> Implement numeric dictionaries in ORC
> -------------------------------------
>
>                 Key: HIVE-4245
>                 URL: https://issues.apache.org/jira/browse/HIVE-4245
>             Project: Hive
>          Issue Type: New Feature
>          Components: Serializers/Deserializers
>            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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