hvanhovell commented on code in PR #40796:
URL: https://github.com/apache/spark/pull/40796#discussion_r1190186510


##########
connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/KeyValueGroupedDataset.scala:
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@@ -322,41 +471,45 @@ abstract class KeyValueGroupedDataset[K, V] private[sql] 
() extends Serializable
  * [[KeyValueGroupedDataset]] behaves on the server.
  */
 private class KeyValueGroupedDatasetImpl[K, V, IK, IV](
-    private val ds: Dataset[IV],
     private val sparkSession: SparkSession,
     private val plan: proto.Plan,
     private val ikEncoder: AgnosticEncoder[IK],
     private val kEncoder: AgnosticEncoder[K],
-    private val groupingFunc: IV => IK,
-    private val valueMapFunc: IV => V)
+    private val ivEncoder: AgnosticEncoder[IV],
+    private val vEncoder: AgnosticEncoder[V],
+    private val groupingExprs: java.util.List[proto.Expression],
+    private val valueMapFunc: IV => V,
+    private val keysFunc: () => Dataset[IK])

Review Comment:
   @zhenlineo ^^^ what about this?



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