Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/22630#discussion_r223024598 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/limit.scala --- @@ -46,6 +46,15 @@ case class CollectLimitExec(limit: Int, child: SparkPlan) extends UnaryExecNode } } +object BaseLimitExec { + private val curId = new java.util.concurrent.atomic.AtomicInteger() + + def newLimitCountTerm(): String = { + val id = curId.getAndIncrement() + s"_limit_counter_$id" + } --- End diff -- see `MapObjects.apply` as an existing example.
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