Github user tarekauel commented on a diff in the pull request:
https://github.com/apache/spark/pull/7114#discussion_r33544068
--- Diff: python/pyspark/sql/functions.py ---
@@ -341,6 +371,20 @@ def monotonicallyIncreasingId():
return Column(sc._jvm.functions.monotonicallyIncreasingId())
+@since(1.5)
+def pi():
+ """
+ Returns the float value that is closer than any other to pi, the ratio
of the circumference
+ of a circle to its diameter.
+
+ >>> sqlContext.createDataFrame([(1,)],
['a']).select((pi()).alias('pi')).collect()
--- End diff --
Is it possible to do this more concise?
`sqlContext.createDataFrame([(pi(),)], ['a']).collect()` fails: `cannot create
an RDD from type: <type 'list'>`. Sorry if the answer is obvious, I am not a
python geek.
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