[GitHub] [spark] HyukjinKwon commented on a diff in pull request #37702: [SPARK-40012][PYTHON][DOCS] Make pyspark.sql.dataframe examples self-contained

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

HyukjinKwon commented on code in PR #37702:
URL: https://github.com/apache/spark/pull/37702#discussion_r957198837


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python/pyspark/sql/dataframe.py:
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@@ -3067,6 +3436,10 @@ def unionByName(self, other: "DataFrame", allowMissingColumns: bool = False) ->
         ----------
         other : :class:`DataFrame`
             Another :class:`DataFrame` that needs to be combined.
+        allowMissingColumns : bool, optional, default False
+           Specify whether to allow missing columns.
+
+           .. versionadded:: 3.1.0

Review Comment:
   This is actually intentional (versionadded is for the new parameter)



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