HyukjinKwon commented on code in PR #37855:
URL: https://github.com/apache/spark/pull/37855#discussion_r969204188
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sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/ShuffleExchangeExec.scala:
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@@ -298,8 +297,7 @@ object ShuffleExchangeExec {
}
def getPartitionKeyExtractor(): InternalRow => Any = newPartitioning match
{
case RoundRobinPartitioning(numPartitions) =>
- // Distributes elements evenly across output partitions, starting from
a random partition.
Review Comment:
I think removing this can actually cause a regression such as skewed data
since the starting partition is always same?
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