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