David Li created ARROW-13295:
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Summary: [C++] Implement hash_aggregate mean/stdev/variance kernels
Key: ARROW-13295
URL: https://issues.apache.org/jira/browse/ARROW-13295
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: David Li
Assignee: David Li
We have scalar aggregate kernels for these already that can serve as the basis
for a hash aggregate implementation.
Depends on ARROW-12759 as that refactors how hash aggregate kernels are
implemented.
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