Github user WeichenXu123 commented on a diff in the pull request:
https://github.com/apache/spark/pull/14203#discussion_r70913944
--- Diff: python/pyspark/sql/dataframe.py ---
@@ -1416,13 +1416,25 @@ def drop(self, col):
>>> df.join(df2, df.name == df2.name,
'inner').drop(df2.name).collect()
[Row(age=5, name=u'Bob', height=85)]
+
+ >>> df.join(df2, df.name == df2.name, 'inner').drop(df2.name) \\
--- End diff --
@rxin Now I update the testcase to make it clearer. Thanks~
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