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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-12763) Use bit vector to track per partition NDV
Date Tue, 19 Jan 2016 06:12:40 GMT

     [ https://issues.apache.org/jira/browse/HIVE-12763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pengcheng Xiong updated HIVE-12763:
-----------------------------------
    Attachment: HIVE-12763.02.patch

> Use bit vector to track per partition NDV
> -----------------------------------------
>
>                 Key: HIVE-12763
>                 URL: https://issues.apache.org/jira/browse/HIVE-12763
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-12763.01.patch, HIVE-12763.02.patch
>
>
> This will improve merging of per partitions stats.



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