gstvg commented on code in PR #22593:
URL: https://github.com/apache/datafusion/pull/22593#discussion_r3319297358
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datafusion/expr/src/higher_order_function.rs:
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@@ -815,6 +819,304 @@ pub trait HigherOrderUDF: Debug + DynEq + DynHash + Send
+ Sync + Any {
}
}
+/// Logical representation of a Higher Order User Defined Function.
+///
+/// A higher order function takes one or more lambda arguments in addition to
+/// regular value arguments. This struct contains the information DataFusion
+/// needs to plan and invoke functions you supply such as name, type signature,
+/// return type, and actual implementation.
+///
+/// For advanced use cases, implement [`HigherOrderUDFImpl`] which provides the
+/// full API.
Review Comment:
Is this part necessary?
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