Github user sryza commented on a diff in the pull request:
https://github.com/apache/spark/pull/1447#discussion_r15044028
--- Diff: core/src/main/scala/org/apache/spark/rdd/PairRDDFunctions.scala
---
@@ -712,8 +701,8 @@ class PairRDDFunctions[K, V](self: RDD[(K, V)])
val index = p.getPartition(key)
def process(it: Iterator[(K, V)]): Seq[V] = {
val buf = new ArrayBuffer[V]
- for ((k, v) <- it if k == key) {
--- End diff --
Wait, actually, my understanding of this loop is that it's iterating over
every record within the partition. Am I missing something?
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