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https://issues.apache.org/jira/browse/ARROW-3120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17393014#comment-17393014
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Antoine Pitrou commented on ARROW-3120:
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cc [~lidavidm]. It's still not obvious to me whether parallelization should
occur inside the kernel machinery, rather than be orchestrated from the outside.
> [C++] Parallelize execution of ScalarAggregateFunction
> ------------------------------------------------------
>
> Key: ARROW-3120
> URL: https://issues.apache.org/jira/browse/ARROW-3120
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Labels: analytics
>
> After ARROW-8972, we have a generic chunk-based executor for aggregate
> functions. It should be relatively straightforward now to parallelize the
> execution loop of the executor.
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