milanisvet commented on code in PR #49571:
URL: https://github.com/apache/spark/pull/49571#discussion_r1925694719
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sql/core/src/main/scala/org/apache/spark/sql/execution/basicPhysicalOperators.scala:
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@@ -714,6 +718,147 @@ case class UnionExec(children: Seq[SparkPlan]) extends
SparkPlan {
copy(children = newChildren)
}
+/**
+ * The physical node for recursion. Currently only UNION ALL case is supported.
Review Comment:
Comment extended :)
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