test: scalar regex match physical expr

Author: zhuliquan

datafusion/physical-expr/src/expressions/scalar_regex_match.rs

@@ -492,7 +492,7 @@ mod tests {
             Arc::new(BooleanArray::from(vec![None, None, None, None, None])),
         ),
         case(
-            true, true, DataType::Utf8View,
+            true, true, DataType::Null,
             Arc::new(NullArray::new(5)),
             ScalarValue::Utf8View(Some("^a".to_string())),
             Arc::new(BooleanArray::from(vec![None, None, None, None, None])),