Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/20390#discussion_r163933231
--- Diff: python/pyspark/sql/dataframe.py ---
@@ -819,6 +819,29 @@ def columns(self):
"""
return [f.name for f in self.schema.fields]
+ @since(2.4)
+ def colRegex(self, colName):
+ """
+ Selects column based on the column name specified as a regex and
return it
--- End diff --
Nit: -> `returns`
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