[jira] [Created] (HIVE-12763) Use bit vector to track per partition NDV

[Pengcheng Xiong (JIRA)]

Pengcheng Xiong created HIVE-12763:
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             Summary: 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


This will improve merging of per partitions stats.



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