Github user markhamstra commented on a diff in the pull request:
https://github.com/apache/spark/pull/369#discussion_r13387198
--- Diff: core/src/main/scala/org/apache/spark/rdd/RDD.scala ---
@@ -423,6 +423,18 @@ abstract class RDD[T: ClassTag](
def ++(other: RDD[T]): RDD[T] = this.union(other)
/**
+ * Return this RDD sorted by the given key function.
+ */
+ def sortBy[K](
+ f: (T) â K,
+ ascending: Boolean = true,
+ numPartitions: Int = this.partitions.size)
+ (implicit ord: Ordering[K], ctag: ClassTag[K]): RDD[T] =
--- End diff --
That substitution certainly could be made since it is functionally
equivalent. Whether it should be made is mostly a question of style. Since
`ord` and `ctag` are not used explicitly here, there is no real use to
enumerating them as implicit parameters; but the rest of RDD.scala doesn't use
the context bound sugar, so there is some value in consistently maintaining
that style.
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