viirya commented on a change in pull request #28962:
URL: https://github.com/apache/spark/pull/28962#discussion_r449712074



##########
File path: 
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/NormalizeFloatingNumbers.scala
##########
@@ -123,7 +123,8 @@ object NormalizeFloatingNumbers extends Rule[LogicalPlan] {
       val fields = expr.dataType.asInstanceOf[StructType].fields.indices.map { 
i =>
         normalize(GetStructField(expr, i))
       }
-      CreateStruct(fields)

Review comment:
       For `If(..., CreateNamedStruct(...))`, it is struct type so already 
covered by the `StructType` case. So the normalization is already applied to 
the inner `CreateNamedStruct`.
   




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