Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/22766#discussion_r226375347
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveUDFs.scala
---
@@ -339,40 +339,38 @@ private[hive] case class HiveUDAFFunction(
val parameterInfo = new
SimpleGenericUDAFParameterInfo(inputInspectors, false, false)
resolver.getEvaluator(parameterInfo)
}
+
+ private case class Mode(evaluator: GenericUDAFEvaluator,
objectInspector: ObjectInspector)
--- End diff --
maybe just `PartialEvaluator`?
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