HyukjinKwon commented on a change in pull request #23414: [Spark
26449][PYSPARK] add a transform method to the Dataframe class
URL: https://github.com/apache/spark/pull/23414#discussion_r244611592
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File path: python/pyspark/sql/dataframe.py
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@@ -2046,6 +2046,40 @@ def toDF(self, *cols):
jdf = self._jdf.toDF(self._jseq(cols))
return DataFrame(jdf, self.sql_ctx)
+ @since(3.0)
+ def transform(self, func):
+ """Returns a new class:`DataFrame` according to a user-defined custom
transform method.
+ This allows chaining transformations rather than using nested or
temporary variables.
Review comment:
I would just match the doc to Scala API side as well.
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