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Posted to dev@hive.apache.org by "Rahul Jain (JIRA)" <ji...@apache.org> on 2013/01/21 19:12:13 UTC

[jira] [Commented] (HIVE-3877) Implement equi-depth histograms as a UDAF

    [ https://issues.apache.org/jira/browse/HIVE-3877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13558950#comment-13558950 ] 

Rahul Jain commented on HIVE-3877:
----------------------------------

Hi Shreepadma,

We're very interested in such a functionality for analytics use cases on standard hive... Has this been implemented at all or still at concept stage ? If you've already made progress here, I'd be happy to collaborate to bring this to completion.
                
> Implement equi-depth histograms as a UDAF
> -----------------------------------------
>
>                 Key: HIVE-3877
>                 URL: https://issues.apache.org/jira/browse/HIVE-3877
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Shreepadma Venugopalan
>            Assignee: Shreepadma Venugopalan
>
> Implement a space and time efficient algorithm to bin numeric column data such that all bins approximately contain the same number of elements. Implement such an algorithm as a generic UDAF.

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