jingz-db commented on code in PR #49488:
URL: https://github.com/apache/spark/pull/49488#discussion_r1947140585


##########
sql/connect/common/src/main/protobuf/spark/connect/relations.proto:
##########
@@ -1031,6 +1033,30 @@ message GroupMap {
 
   // (Optional) The schema for the grouped state.
   optional DataType state_schema = 10;
+
+  // Below fields are only used by TransformWithState
+  // (Optional) TransformWithState related parameters.
+  optional TransformWithStateInfo transformWithStateInfo = 11;
+}
+
+// Event time rule needed for chaining of operator of TransformWithState

Review Comment:
   I agree it is better to keep this as it is in this PR to avoid any risk to 
the classic mode. We can revisit in as you suggest in a separate PR if needed 
in the future.



##########
sql/connect/common/src/main/protobuf/spark/connect/relations.proto:
##########
@@ -1031,6 +1033,30 @@ message GroupMap {
 
   // (Optional) The schema for the grouped state.
   optional DataType state_schema = 10;
+
+  // Below fields are only used by TransformWithState
+  // (Optional) TransformWithState related parameters.
+  optional TransformWithStateInfo transformWithStateInfo = 11;
+}
+
+// Event time rule needed for chaining of operator of TransformWithState

Review Comment:
   I agree it is better to keep this as it is in this PR to avoid any risk to 
the classic mode. We can revisit it as you suggest in a separate PR if needed 
in the future.



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