xupefei commented on code in PR #45701:
URL: https://github.com/apache/spark/pull/45701#discussion_r1561082565


##########
connector/connect/client/jvm/src/main/scala/org/apache/spark/sql/Dataset.scala:
##########
@@ -131,13 +131,25 @@ import org.apache.spark.util.SparkClassUtils
 class Dataset[T] private[sql] (
     val sparkSession: SparkSession,
     @DeveloperApi val plan: proto.Plan,
-    val encoder: Encoder[T])
+    val encoder: Encoder[T],
+    @DeveloperApi carryOverObservationsOpt: Option[Map[String, Observation]] = 
None)

Review Comment:
   Refactor done in the latest comments. I took your suggestion and made a 
change to store a map of Plan-Id-to-Observation in SparkSession.



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