dianfu commented on code in PR #27331:
URL: https://github.com/apache/flink/pull/27331#discussion_r2617700571
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flink-python/pyflink/datastream/formats/tests/test_csv.py:
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@@ -344,6 +350,24 @@ def _check_csv_use_header_results(test, results):
test.assertEqual(row['number'], 123)
+def _create_csv_default_null_value_schema_and_lines() -> Tuple[CsvSchema,
List[str]]:
+ schema = CsvSchema.builder() \
+ .add_string_column('string') \
+ .add_number_column('number') \
+ .set_null_value('') \
Review Comment:
A null_value must be specified if `.set_null_value` is called. There is no
default value.
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