cloud-fan commented on code in PR #37612:
URL: https://github.com/apache/spark/pull/37612#discussion_r954456484
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sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/InsertAdaptiveSparkPlan.scala:
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@@ -51,6 +51,11 @@ case class InsertAdaptiveSparkPlan(
case c: DataWritingCommandExec
if !c.cmd.isInstanceOf[V1WriteCommand] || !conf.plannedWriteEnabled =>
c.copy(child = apply(c.child))
+ // `DeserializeToObjectExec` is used by Spark internal e.g. `Dataset.rdd`.
+ // It should always be a root node, and does not allow a shuffle on top of
it.
+ // This is conflict with AQE framework since we may add shuffle back
during re-optimize
Review Comment:
```suggestion
// This conflicts with AQE framework since we may add shuffle back
during re-optimize
```
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