tshauck commented on code in PR #11371:
URL: https://github.com/apache/datafusion/pull/11371#discussion_r1671253646
##########
datafusion/expr/src/planner.rs:
##########
@@ -161,6 +162,28 @@ pub trait ExprPlanner: Send + Sync {
) -> Result<PlannerResult<Vec<Expr>>> {
Ok(PlannerResult::Original(args))
}
+
+ /// Plans a `RawAggregateUDF` based on the given input expressions.
+ ///
+ /// Returns a `PlannerResult` containing either the planned aggregate
function or the original
+ /// input expressions if planning is not possible.
+ fn plan_aggregate_udf(
+ &self,
+ aggregate_function: RawAggregateUDF,
+ ) -> Result<PlannerResult<RawAggregateUDF>> {
+ Ok(PlannerResult::Original(aggregate_function))
+ }
+}
+
+// An `AggregateUDF` to be planned.
+#[derive(Debug, Clone)]
+pub struct RawAggregateUDF {
Review Comment:
One thought I had during this is it might be nice to also update the naming
pattern for these intermediate structs... maybe from `Raw*` to `Plannable*`?
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