Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7408#discussion_r34639995
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/Exchange.scala ---
@@ -158,7 +158,7 @@ case class Exchange(
val rdd = if (needToCopyObjectsBeforeShuffle(part, serializer)) {
child.execute().mapPartitions { iter =>
val hashExpressions = newMutableProjection(expressions,
child.output)()
- iter.map(r => (hashExpressions(r).copy(), r.copy()))
+ iter.map(r => (hashExpressions(r).copy, r.copy()))
--- End diff --
hm since copy is a verb, it is better to keep the () i think. also we
defined copy with ()
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