tomtongue commented on code in PR #8227:
URL: https://github.com/apache/iceberg/pull/8227#discussion_r1295345813


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spark/v3.4/spark/src/main/java/org/apache/iceberg/spark/actions/MigrateTableSparkAction.java:
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@@ -56,17 +56,16 @@ public class MigrateTableSparkAction extends 
BaseTableCreationSparkAction<Migrat
 
   private final StagingTableCatalog destCatalog;
   private final Identifier destTableIdent;
-  private final Identifier backupIdent;
 
   private boolean dropBackup = false;
 
+  private String backupTableName = "";

Review Comment:
   Thanks for the suggestion. The suggestion totally makes sense to me. Based 
on this comment, I update as follows:
   * revert back the `backupIdent` variable with making the var *non-final*, 
and the `backupIdent` initialization part
   * add the table change logic in the `withBackupTableName` method that is 
newly added in this PR
   * remove the `backupTableName` var along with the way to update back along 
with the above two changes



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