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https://issues.apache.org/jira/browse/ARROW-15994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weston Pace resolved ARROW-15994.
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Fix Version/s: 8.0.0
Resolution: Fixed
Issue resolved by pull request 12720
[https://github.com/apache/arrow/pull/12720]
> [C++] Back out taskify changes
> ------------------------------
>
> Key: ARROW-15994
> URL: https://issues.apache.org/jira/browse/ARROW-15994
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Weston Pace
> Assignee: Sanjiban Sengupta
> Priority: Major
> Labels: pull-request-available
> Fix For: 8.0.0
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> In the query engine we had started to work on a scheduler (ARROW-15079) with
> some initial PRs but did not end up finishing the work. We are hoping to
> start work on this again and, based on new understanding, we won't be
> following the same approach that was started in ARROW-15079. We should back
> out some of those changes (in particular we should not schedule extra thread
> tasks on map nodes as there is no benefit to doing so). We still want to
> keep the basic idea of a map node however.
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