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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2018/08/31 06:15:00 UTC

[jira] [Created] (HIVE-20490) UDAF: Add an `approx_distinct` to Hive

Gopal V created HIVE-20490:
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             Summary: UDAF: Add an `approx_distinct` to Hive
                 Key: HIVE-20490
                 URL: https://issues.apache.org/jira/browse/HIVE-20490
             Project: Hive
          Issue Type: Improvement
          Components: UDF
    Affects Versions: 4.0.0
            Reporter: Gopal V


This gives a direct pathway to call the equivalent of Hive's default compute_stats() UDAF which computes a HyperLogLog bitVector + approx distinct on a column.



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