cloud-fan commented on a change in pull request #32041:
URL: https://github.com/apache/spark/pull/32041#discussion_r607174623
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/Command.scala
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@@ -37,3 +37,9 @@ trait Command extends LogicalPlan {
trait LeafCommand extends Command with LeafLike[LogicalPlan]
trait UnaryCommand extends Command with UnaryLike[LogicalPlan]
trait BinaryCommand extends Command with BinaryLike[LogicalPlan]
+
+trait CommandWithAnalyzedChildren extends Command {
+ def childrenToAnalyze: Seq[LogicalPlan] = Nil
+
+ override final def children: Seq[LogicalPlan] =
childrenToAnalyze.filter(!_.analyzed)
Review comment:
This is a bit risky. Some analyzer rules may want to transform the child
even if it's analyzed.
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