Percy Camilo Triveño Aucahuasi created ARROW-14158:
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             Summary: [C++][Compute] Implement count distinct kernel using 
HyperLogLog
                 Key: ARROW-14158
                 URL: https://issues.apache.org/jira/browse/ARROW-14158
             Project: Apache Arrow
          Issue Type: New Feature
          Components: C++
    Affects Versions: 7.0.0
            Reporter: Percy Camilo Triveño Aucahuasi


Having a version of the aggregation kernel count distinct using HyperLogLog may 
be useful.

Note: The implementation should support the merge operator.

cc [~icook] [~lidavidm]

Some resources/links:
[http://algo.inria.fr/flajolet/Publications/FlFuGaMe07.pdf]
[https://engineering.fb.com/2018/12/13/data-infrastructure/hyperloglog/]
[https://github.com/facebookincubator/velox/tree/main/velox/aggregates/hyperloglog]



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