[GitHub] [arrow-datafusion] jaylmiller commented on a diff in pull request #5380: UDF zero params #5378

["jaylmiller (via GitHub)" <gi...@apache.org>]

jaylmiller commented on code in PR #5380:
URL: https://github.com/apache/arrow-datafusion/pull/5380#discussion_r1117431902


##########
datafusion/physical-expr/src/planner.rs:
##########
@@ -393,7 +393,10 @@ pub fn create_physical_expr(
                     execution_props,
                 )?);
             }
-
+            // udfs with zero params expect null array as input
+            if args.is_empty() {
+                physical_args.push(Arc::new(Literal::new(ScalarValue::Null)));

Review Comment:
   Sounds good. Thanks for the suggestions!



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