Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/22766#discussion_r226511479
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveUDFs.scala
---
@@ -340,39 +340,39 @@ private[hive] case class HiveUDAFFunction(
resolver.getEvaluator(parameterInfo)
}
- // The UDAF evaluator used to consume raw input rows and produce partial
aggregation results.
- @transient
- private lazy val partial1ModeEvaluator = newEvaluator()
+ private case class PartialEvaluator(
+ evaluator: GenericUDAFEvaluator,
+ objectInspector: ObjectInspector)
+ // The UDAF evaluator used to consume raw input rows and produce partial
aggregation results.
// Hive `ObjectInspector` used to inspect partial aggregation results.
@transient
- private val partialResultInspector = partial1ModeEvaluator.init(
- GenericUDAFEvaluator.Mode.PARTIAL1,
- inputInspectors
- )
+ private lazy val partial1Mode = {
--- End diff --
`partial1ModeEvaluator`
---
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