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Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/07/12 14:32:00 UTC

[jira] [Created] (ARROW-13310) [C++] Implement hash_aggregate mode kernel

David Li created ARROW-13310:
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             Summary: [C++] Implement hash_aggregate mode kernel
                 Key: ARROW-13310
                 URL: https://issues.apache.org/jira/browse/ARROW-13310
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: David Li


Requires ARROW-12759.

We have a scalar aggregate kernel for this already and hopefully the implementation can be reused. Note, Pandas actually doesn't expose this in DataFrameGroupBy.



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