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https://issues.apache.org/jira/browse/ARROW-14444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17460992#comment-17460992
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Weston Pace commented on ARROW-14444:
-------------------------------------

I think this is superceded by ARROW-15079 which has more description

> [C++] Implement task-based model into the executable-pipelines.
> ---------------------------------------------------------------
>
>                 Key: ARROW-14444
>                 URL: https://issues.apache.org/jira/browse/ARROW-14444
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Alexander Ocsa
>            Priority: Major
>              Labels: query-engine
>             Fix For: 8.0.0
>
>
> The plan fragments will use a task-based model for parallel processing.
>  That means that there is a scheduler that gets assigned tasks for execution, 
> keeps selecting the next task for execution, and assigning it to a specific 
> executor (aka arrow thread pool).  



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