Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/15899#discussion_r231390266
--- Diff: core/src/main/scala/org/apache/spark/rdd/RDD.scala ---
@@ -387,6 +387,14 @@ abstract class RDD[T: ClassTag](
preservesPartitioning = true)
}
+ /**
+ * Return a new RDD containing only the elements that satisfy a
predicate.
--- End diff --
Why bother unless we have consensus to introduce this API?
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