Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/7401#discussion_r41718283
--- Diff: python/pyspark/rdd.py ---
@@ -296,7 +296,7 @@ def flatMap(self, f, preservesPartitioning=False):
>>> rdd = sc.parallelize([2, 3, 4])
>>> sorted(rdd.flatMap(lambda x: range(1, x)).collect())
- [1, 1, 1, 2, 2, 3]
+ [1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4]
--- End diff --
I think that the purpose of this change was to induce a test failure to
verify that the output reporting was correct.
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