zhengruifeng commented on code in PR #51965:
URL: https://github.com/apache/spark/pull/51965#discussion_r2265557578
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala:
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@@ -1149,7 +1149,7 @@ case class SortArray(base: Expression, ascendingOrder:
Expression)
private def sortEval(array: Any, ascending: Boolean): Any = {
val data = array.asInstanceOf[ArrayData].toArray[AnyRef](elementType)
if (elementType != NullType) {
- java.util.Arrays.sort(data, if (ascending) lt else gt)
+ java.util.Arrays.parallelSort(data, if (ascending) lt else gt)
Review Comment:
I feel in most cases the input size of `MapSort` and `SortArray` won't be
too large, will this affect the performance of small data?
cc @cloud-fan
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