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https://issues.apache.org/jira/browse/ARROW-9056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Li resolved ARROW-9056.
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Fix Version/s: 5.0.0
Resolution: Fixed
Issue resolved by pull request 10725
[https://github.com/apache/arrow/pull/10725]
> [C++] Support scalar aggregation over scalars
> ---------------------------------------------
>
> Key: ARROW-9056
> URL: https://issues.apache.org/jira/browse/ARROW-9056
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Neal Richardson
> Assignee: David Li
> Priority: Major
> Labels: pull-request-available
> Fix For: 5.0.0
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> See discussion on https://github.com/apache/arrow/pull/7308. Many/most would
> no-op (sum, mean, min, max), but maybe they should exist and not error? Maybe
> they're not needed, but I could see how you might invoke a function on the
> result of a previous aggregation or something.
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