viirya commented on a change in pull request #26946: [SPARK-30036][SQL] Fix:
REPARTITION hint does not work with order by
URL: https://github.com/apache/spark/pull/26946#discussion_r360760641
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/EnsureRequirements.scala
##########
@@ -55,6 +55,8 @@ case class EnsureRequirements(conf: SQLConf) extends
Rule[SparkPlan] {
child
case (child, BroadcastDistribution(mode)) =>
BroadcastExchangeExec(mode, child)
+ case (ShuffleExchangeExec(partitioning, child, _), distribution:
OrderedDistribution) =>
+
ShuffleExchangeExec(distribution.createPartitioning(partitioning.numPartitions),
child)
Review comment:
I just tried few possible cases, but can not have a concrete case like this.
Maybe this is the only case possibly.
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