cloud-fan commented on code in PR #49202:
URL: https://github.com/apache/spark/pull/49202#discussion_r1897210793


##########
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkOptimizer.scala:
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@@ -95,7 +100,11 @@ class SparkOptimizer(
       EliminateLimits,
       ConstantFolding),
     Batch("User Provided Optimizers", fixedPoint, 
experimentalMethods.extraOptimizations: _*),
-    Batch("Replace CTE with Repartition", Once, ReplaceCTERefWithRepartition)))
+    Batch("Replace CTE with Repartition", Once, ReplaceCTERefWithRepartition),
+    Batch("Merge With expression", fixedPoint, MergeWithExpression),
+    Batch("Rewrite With expression", fixedPoint,

Review Comment:
   how many places do we need to put this batch?



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