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https://issues.apache.org/jira/browse/ARROW-13310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ian Cook updated ARROW-13310:
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Fix Version/s: 6.0.0
> [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
> Priority: Major
> Labels: kernel
> Fix For: 6.0.0
>
>
> 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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