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https://issues.apache.org/jira/browse/ARROW-1565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Li resolved ARROW-1565.
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Resolution: Fixed
Issue resolved by pull request 11019
[https://github.com/apache/arrow/pull/11019]
> [C++][Compute] Implement TopK/BottomK
> -------------------------------------
>
> Key: ARROW-1565
> URL: https://issues.apache.org/jira/browse/ARROW-1565
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Assignee: Alexander
> Priority: Major
> Labels: Analytics, pull-request-available, query-engine
> Fix For: 6.0.0
>
> Time Spent: 13h 10m
> Remaining Estimate: 0h
>
> Heap-based topk can compute these indices in O(n log k) time
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