deniskuzZ commented on code in PR #15389:
URL: https://github.com/apache/iceberg/pull/15389#discussion_r2854264492


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core/src/main/java/org/apache/iceberg/BaseTransaction.java:
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@@ -78,6 +78,7 @@ enum TransactionType {
   private TableMetadata base;
   private TableMetadata current;
   private boolean hasLastOpCommitted;
+  private boolean isAborted = false;

Review Comment:
   @qlong you need to stage all table `PendingUpdates` — where would you keep 
them?
   The client uses the Transaction API to stage multiple table changes, and 
`BaseTransaction` stores them in its `updates` list. 
   Adding prepareMetadata() to TableOps doesn’t provide any additional value 
and isn't even linked to a Transaction in any way.
   
   in order to link it you should override the `commitTransaction` copy&paste 
plenty of things  and do something like this
   ````
   applyUpdates(underlyingOps);
   underlyingOps. prepareMetadata(base, current);
   ```` 
   but again `applyUpdates` & `updates` list are private



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