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https://issues.apache.org/jira/browse/ARROW-17023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Arrow JIRA Bot reassigned ARROW-17023:
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Assignee: (was: Weston Pace)
> [C++] Add initial Acero design documents
> ----------------------------------------
>
> Key: ARROW-17023
> URL: https://issues.apache.org/jira/browse/ARROW-17023
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Weston Pace
> Priority: Major
>
> As Acero grows in complexity it will be difficult for new developers to be
> able to contribute meaningfully. In addition, Acero should be open for
> extension by third party developers that wish to add new exec nodes. These
> 3rd party developers will need to know details on how Acero schedules work
> and operates and will appreciate advice on efficient development. At a
> minimum this first pass should explain:
> * Threading / Scheduling model for Acero (note, there are proposals to
> enhance the model we currently have)
> * Discussion of batch sizes and cache sizes and the morsel / batch model
> * General discussion / advice for writing operators in a column-major way
> * Design of current nodes, in particular, some more detail around how
> expression evaluation happens and how the hash-join node operates
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