cloud-fan commented on code in PR #49027:
URL: https://github.com/apache/spark/pull/49027#discussion_r1895267306
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala:
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@@ -958,6 +958,18 @@ case class Sort(
override protected def withNewChildInternal(newChild: LogicalPlan): Sort =
copy(child = newChild)
}
+/**
+ * Clustering data within the partition.
+ *
+ * @param cluster The clustering expressions
+ * @param child Child logical plan
+ */
+case class Clustering(cluster: Seq[SortOrder], child: LogicalPlan) extends
UnaryNode {
Review Comment:
shall we just use `Seq[Expression]`? for clustering, the ordering doesn't
matter, we just need the clustering key.
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