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https://issues.apache.org/jira/browse/ARROW-9758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17178510#comment-17178510
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Andrew Lamb commented on ARROW-9758:
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Thanks [~andygrove] -- something else I have been thinking about is "A way to
add my own LogicalPlan node" which would require a bit of API design (probably
a LogicalPlanNode trait rather than a LogicalPlanNode enum) but the items in
this ticket sounds good too
> [Rust] [DataFusion] Implement extension API for DataFusion
> ----------------------------------------------------------
>
> Key: ARROW-9758
> URL: https://issues.apache.org/jira/browse/ARROW-9758
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Rust, Rust - DataFusion
> Reporter: Andy Grove
> Assignee: Andy Grove
> Priority: Major
> Fix For: 2.0.0
>
>
> I would like the ability to extend DataFusion by providing my own:
> * Logical plan optimization rules
> * Physical query planner for converting logical plan to physical plan
> Later, I would also like to be able to provide physical plan optimization
> rules but we don't have a physical optimizer yet.
> These changes would allow people to extend DataFusion easily without
> implementing their own competing DataFrame APIs.
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