yaooqinn commented on a change in pull request #30918:
URL: https://github.com/apache/spark/pull/30918#discussion_r548831268



##########
File path: 
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala
##########
@@ -705,7 +705,7 @@ class SessionCatalog(
             schema = plan.output.toStructType)
       }.getOrElse(throw new 
NoSuchTableException(globalTempViewManager.database, table))
     } else {
-      getTableMetadata(name)
+      getTableRawMetadata(name)

Review comment:
       
   
   I have checked all the callers,` spark.catalog.listColumns` and 
AlterTableAddColumnsCommand only will directly reference the schema here.




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