Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/11347#discussion_r54208704
--- Diff: python/pyspark/sql/context.py ---
@@ -48,28 +48,29 @@
def _monkey_patch_RDD(sqlContext):
- def toDF(self, schema=None, sampleRatio=None):
+ def toDS(self, schema=None, sampleRatio=None):
"""
- Converts current :class:`RDD` into a :class:`DataFrame`
+ Converts current :class:`RDD` into a :class:`Dataset`
- This is a shorthand for ``sqlContext.createDataFrame(rdd, schema,
sampleRatio)``
+ This is a shorthand for ``sqlContext.createDataset(rdd, schema,
sampleRatio)``
:param schema: a StructType or list of names of columns
:param samplingRatio: the sample ratio of rows used for inferring
- :return: a DataFrame
+ :return: a Dataset
- >>> rdd.toDF().collect()
+ >>> rdd.toDS().collect()
[Row(name=u'Alice', age=1)]
"""
- return sqlContext.createDataFrame(self, schema, sampleRatio)
+ return sqlContext.createDataset(self, schema, sampleRatio)
- RDD.toDF = toDF
+ RDD.toDS = toDS
+ RDD.toDF = toDS # for compatibility
--- End diff --
is there a test for backward compatibility?
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