twalthr commented on code in PR #26076:
URL: https://github.com/apache/flink/pull/26076#discussion_r1944557382
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flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/functions/inference/OperatorBindingCallContext.java:
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@@ -85,7 +107,7 @@ public boolean isArgumentLiteral(int pos) {
@Override
public boolean isArgumentNull(int pos) {
- return binding.isOperandNull(pos, false);
+ return binding.isOperandNull(pos, false) || isDefault(pos);
Review Comment:
Yes, default values will be passed as null into UDFs.
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