Github user liancheng commented on a diff in the pull request: https://github.com/apache/spark/pull/5383#discussion_r28305846 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/generators.scala --- @@ -71,6 +71,12 @@ abstract class Generator extends Expression { copy._output = _output copy } + + /** + * Notifies that there are no more rows to process, clean up the code, and additional --- End diff -- clean up the code => clean up code
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