cloud-fan commented on code in PR #49202:
URL: https://github.com/apache/spark/pull/49202#discussion_r1894532802


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sql/core/src/main/scala/org/apache/spark/sql/execution/SparkOptimizer.scala:
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@@ -65,6 +65,8 @@ class SparkOptimizer(
       RewriteDistinctAggregates),
     Batch("Pushdown Filters from PartitionPruning", fixedPoint,
       PushDownPredicates),
+    Batch("Rewrite With expression", fixedPoint,

Review Comment:
   shall we just rewrite `With` once at the very end of the optimizer?



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