cloud-fan commented on code in PR #38950:
URL: https://github.com/apache/spark/pull/38950#discussion_r1043335767
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/physical/partitioning.scala:
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@@ -694,28 +694,32 @@ case class KeyGroupedShuffleSpec(
// transform functions.
// 4. the partition values, if present on both sides, are following the
same order.
case otherSpec @ KeyGroupedShuffleSpec(otherPartitioning,
otherDistribution) =>
- val expressions = partitioning.expressions
- val otherExpressions = otherPartitioning.expressions
-
distribution.clustering.length == otherDistribution.clustering.length &&
- numPartitions == other.numPartitions &&
- expressions.length == otherExpressions.length && {
- val otherKeyPositions = otherSpec.keyPositions
- keyPositions.zip(otherKeyPositions).forall { case (left, right) =>
- left.intersect(right).nonEmpty
- }
- } && expressions.zip(otherExpressions).forall {
- case (l, r) => isExpressionCompatible(l, r)
- } &&
partitioning.partitionValuesOpt.zip(otherPartitioning.partitionValuesOpt).forall
{
+ numPartitions == other.numPartitions &&
isExpressionsCompatible(otherSpec) &&
+
partitioning.partitionValuesOpt.zip(otherPartitioning.partitionValuesOpt).forall
{
case (left, right) => left.zip(right).forall { case (l, r) =>
ordering.compare(l, r) == 0
}
- }
+ }
case ShuffleSpecCollection(specs) =>
specs.exists(isCompatibleWith)
case _ => false
}
+ def isExpressionsCompatible(other: KeyGroupedShuffleSpec): Boolean = {
Review Comment:
Since this is `KeyGroupedShuffleSpec`, how about `areKeysCompatible`?
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