geoffreyclaude commented on code in PR #22559:
URL: https://github.com/apache/datafusion/pull/22559#discussion_r3311017647
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datafusion/physical-plan/src/execution_plan.rs:
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@@ -115,6 +115,26 @@ pub trait ExecutionPlan: Any + Debug + DisplayAs + Send +
Sync {
}
}
+ /// Returns the plan that provides this plan's public
+ /// [`ExecutionPlan`] downcast identity.
+ ///
+ /// This hook is for wrapper nodes that delegate their public downcast
+ /// identity to another plan while adding cross-cutting behavior such as
+ /// instrumentation. The default implementation returns `None`, meaning
this
+ /// plan's concrete type is used for type introspection.
+ ///
+ /// The `is` and `downcast_ref` helpers follow the returned delegate before
Review Comment:
done: I amended the commit.
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