Ngone51 commented on a change in pull request #31451:
URL: https://github.com/apache/spark/pull/31451#discussion_r570234278
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/BatchScanExec.scala
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@@ -44,8 +44,19 @@ case class BatchScanExec(
override lazy val readerFactory: PartitionReaderFactory =
batch.createReaderFactory()
+ /**
+ * The callback function which is called when the output iterator of input
RDD is consumed
+ * completely.
+ */
+ private def onOutputCompletion(reader: PartitionReader[_]) = {
Review comment:
Do we have the plan to do other things on completion? Otherwise, I'd
like to suggest naming `collectMetericsOnCompletion` for now.
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