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

[David Li (Jira)]

David Li created ARROW-13310:
--------------------------------

             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.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)