Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/1381#discussion_r16913368
--- Diff:
core/src/main/scala/org/apache/spark/rdd/OrderedRDDFunctions.scala ---
@@ -67,4 +67,41 @@ class OrderedRDDFunctions[K : Ordering : ClassTag,
}
}, preservesPartitioning = true)
}
+
+ /**
+ * Returns an RDD with any elements not in the inclusive range `lower`
to `upper` filtered out.
+ * If the RDD has been partitioned using the `RangePartitioner` this is
an operation that can be
+ * done efficiently. If not a standard `filter` is used.
+ */
+ def filterByRange(lower: K, upper: K) : RDD[P] = {
+
+ def rangeFilter(iter:Iterator[P]) = {
--- End diff --
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