cloud-fan commented on code in PR #49232:
URL: https://github.com/apache/spark/pull/49232#discussion_r1900119346
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala:
##########
@@ -884,6 +884,10 @@ case class CTERelationDef(
copy(child = newChild)
override def output: Seq[Attribute] = if (resolved) child.output else Nil
+
+ lazy val recursive: Boolean = child.exists(
+ (p: LogicalPlan) => p.isInstanceOf[CTERelationRef] &&
p.asInstanceOf[CTERelationRef].recursive
Review Comment:
the code can be simplified using partial function
```
child.exists {
case ref: CTERelationRef => ...
case _ => false
}
```
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