ulysses-you commented on a change in pull request #33651:
URL: https://github.com/apache/spark/pull/33651#discussion_r683912356
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/LogicalQueryStage.scala
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@@ -54,4 +54,6 @@ case class LogicalQueryStage(
}
physicalStats.getOrElse(logicalPlan.stats)
}
+
+ override def maxRows: Option[Long] =
stats.rowCount.map(_.min(Long.MaxValue).toLong)
Review comment:
If there is other physical nodes above `QueryStageExec` the stats is not
accurate. Seems the only node can exist here is aggregate, so the maxRows is
still accurate.
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