HyukjinKwon commented on code in PR #38130:
URL: https://github.com/apache/spark/pull/38130#discussion_r995630979
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sql/core/src/main/scala/org/apache/spark/sql/execution/python/AttachDistributedSequenceExec.scala:
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@@ -40,15 +42,45 @@ case class AttachDistributedSequenceExec(
override def outputPartitioning: Partitioning = child.outputPartitioning
+ @transient private var cached: RDD[InternalRow] = _
+
override protected def doExecute(): RDD[InternalRow] = {
- val childRDD = child.execute().map(_.copy())
- val checkpointed = if (childRDD.getNumPartitions > 1) {
- // to avoid execute multiple jobs. zipWithIndex launches a Spark job.
- childRDD.localCheckpoint()
+ val childRDD = child.execute()
Review Comment:
Hm, maybe let's just keep the legacy behaviour as is for now is AQE is
disabled. Keeping the behaviour as is is fine but changing it to a new
behaviour is a different story.
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