DanielCarter-stack commented on PR #10366:
URL: https://github.com/apache/seatunnel/pull/10366#issuecomment-3767963636

   <!-- code-pr-reviewer -->
   Thanks! Two MINOR suggestions:
   
   - **ExcelGeneratorTest.java:78** - Test uses `sinkColumnsIndexInRow = 
Arrays.asList(0, 1, 2, 3)` with consecutive indices. With consecutive indices, 
the old code `createCell(i)` and new code `createCell(index++)` produce 
identical results (since `i == index`). The bug only manifests with 
non-consecutive indices (e.g., `[3, 1, 2, 0]`), so the current test cannot 
verify the fix. Consider adding a test with reordered indices to prevent 
regression.
   
   - **PR Description** - The "Does this PR introduce any user-facing change?" 
section is empty. Since this fix changes Excel output column order from 
incorrect (original index order) to correct (`sink_columns` order), users who 
relied on the previous incorrect order will see different output after upgrade. 
Documenting this behavior change would help with release notes and user 
migration.


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