Github user nongli commented on a diff in the pull request:
https://github.com/apache/spark/pull/10989#discussion_r51631359
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/TungstenAggregate.scala
---
@@ -389,14 +379,16 @@ case class TungstenAggregate(
UnsafeRow $keyTerm = (UnsafeRow) $iterTerm.getKey();
UnsafeRow $bufferTerm = (UnsafeRow) $iterTerm.getValue();
$outputCode
+
+ if (shouldStop()) return;
--- End diff --
Can you document the required behavior of shouldStop(). How does it need to
behave so that the clean up below (hashMapTerm.free()) is called?
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