cloud-fan commented on a change in pull request #26400: [SPARK-29759][SQL] 
local/coalesced shuffle reader shouldn't strip itself when canonicalization
URL: https://github.com/apache/spark/pull/26400#discussion_r342538723
 
 

 ##########
 File path: 
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/OptimizeLocalShuffleReader.scala
 ##########
 @@ -103,11 +103,9 @@ case class LocalShuffleReaderExec(child: QueryStageExec) 
extends UnaryExecNode {
 
   override def output: Seq[Attribute] = child.output
 
-  override def doCanonicalize(): SparkPlan = child.canonicalized
-
   override def outputPartitioning: Partitioning = {
 
-    def tryReserveChildPartitioning(stage: ShuffleQueryStageExec): 
Partitioning = {
 
 Review comment:
   this is a typo

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