Github user liufengdb commented on a diff in the pull request: https://github.com/apache/spark/pull/20174#discussion_r160217718 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala --- @@ -230,6 +236,7 @@ case class HashAggregateExec( | private void $doAgg() throws java.io.IOException { | // initialize aggregation buffer | $initBufVar + | $hasInput = false; --- End diff -- I actually tried it, but found it was hard because we don't control the codegen of line `/* 038 */ if (shouldStop()) return;` in `doAgg`.
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