NGA-TRAN commented on code in PR #16858:
URL: https://github.com/apache/datafusion/pull/16858#discussion_r2225941942


##########
datafusion/proto/src/physical_plan/from_proto.rs:
##########
@@ -368,7 +368,12 @@ pub fn parse_physical_expr(
                     e.name.as_str(),
                     scalar_fun_def,
                     args,
-                    Field::new("f", convert_required!(e.return_type)?, 
true).into(),
+                    Field::new(
+                        &e.return_field_name,
+                        convert_required!(e.return_type)?,
+                        true,

Review Comment:
   The change here is to use `e.return_field_name` in deserialization. So 
whatever name  of the UDF we serialize at line 356 of the file `to_proto.rs in` 
this PR, it will be deserialized here; and it will match.  Does this answer 
your concern?



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