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  1. IMPALA
  2. IMPALA-9593

Implement count(distinct) function (DataSketches/HLL)

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    • Type: Epic
    • Status: In Progress
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Backend
    • Labels:
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    • Epic Color:
      ghx-label-13

      Description

      Implement the count(distinct) function from the DataSketches library for HLL in C++.

      General info about the sketch:
      http://datasketches.apache.org/docs/HLL/HLL.html

      C++ implementation to wrap:
      https://github.com/apache/incubator-datasketches-cpp/tree/master/hll

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              • Assignee:
                gaborkaszab Gabor Kaszab
                Reporter:
                BoglarkaEgyed Boglarka Egyed
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                • Created:
                  Updated: