hequn8128 commented on a change in pull request #9748: 
[FLINK-14016][python][flink-table-planner] Introduce DataStreamPythonCalc for 
Python function execution
URL: https://github.com/apache/flink/pull/9748#discussion_r327948404
 
 

 ##########
 File path: 
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/plan/BatchOptimizer.scala
 ##########
 @@ -54,7 +54,8 @@ class BatchOptimizer(
     val decorPlan = RelDecorrelator.decorrelateQuery(expandedPlan)
     val normalizedPlan = optimizeNormalizeLogicalPlan(decorPlan)
     val logicalPlan = optimizeLogicalPlan(normalizedPlan)
-    optimizePhysicalPlan(logicalPlan, FlinkConventions.DATASET)
+    val pythonizedLogicalPlan = optimizePythonLogicalPlan(logicalPlan)
 
 Review comment:
   Remove the changes for bach here. Batch is not covered in this PR. If we 
intend to support batch, we need to add batch rules, batch node and related 
tests.

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