Github user zasdfgbnm commented on a diff in the pull request:
https://github.com/apache/spark/pull/18444#discussion_r124536696
--- Diff: python/pyspark/sql/tests.py ---
@@ -2259,6 +2261,69 @@ def test_BinaryType_serialization(self):
df = self.spark.createDataFrame(data, schema=schema)
df.collect()
+ # test for SPARK-16542
+ def test_array_types(self):
+ # This test need to make sure that the Scala type selected is at
least
+ # as large as the python's types. This is necessary because
python's
+ # array types depend on C implementation on the machine. Therefore
there
+ # is no machine independent correspondence between python's array
types
+ # and Scala types.
+ # See: https://docs.python.org/2/library/array.html
--- End diff --
@ueshin The answer to your question is explained here, a couple lines of
comments I just added.
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