[GitHub] [spark] zhengruifeng commented on a diff in pull request #39060: [SPARK-41506][CONNECT][PYTHON][FOLLOWUP] Support typed null

[GitBox <gi...@apache.org>]

zhengruifeng commented on code in PR #39060:
URL: https://github.com/apache/spark/pull/39060#discussion_r1048106561


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python/pyspark/sql/tests/connect/test_connect_column.py:
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@@ -202,6 +203,9 @@ def test_literal_null(self):
             self.assertTrue(lit_null._value is None)
             self.assertEqual(dataType, lit_null._dataType)
 
+            cdf = self.connect.range(0, 1).select(Column(lit_null))

Review Comment:
   for each datatype supported in `LiteralExpression`, create a df containing the literal column and check the schema



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