Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/19324#discussion_r141031904
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala
---
@@ -599,10 +621,14 @@ case class HashAggregateExec(
}
} else ""
}
+ ctx.addExtraCode(generateGenerateCode())
--- End diff --
just for curiosity, is it really worth to codegen the fast hash map?
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