Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/1562#discussion_r15566850
--- Diff: core/src/main/scala/org/apache/spark/Partitioner.scala ---
@@ -103,26 +107,49 @@ class RangePartitioner[K : Ordering : ClassTag, V](
private var ascending: Boolean = true)
--- End diff --
It'd be great to update the documentation on when this results in two
passes vs one pass. We should probably update the documentation for sortByKey
and various other sorts that use this too. Let's do that in another PR.
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