QuakeWang opened a new pull request, #8670:
URL: https://github.com/apache/paimon/pull/8670

   ### Purpose
   
   Daft treated every append-table split as directly readable Parquet and 
ignored `raw_convertible` for non-primary-key tables. Non-raw-convertible 
data-evolution splits can contain column fragments for the same row-id range, 
so reading each file independently returned physical rows instead of merged 
logical rows.
   
   Require `raw_convertible` for native Parquet routing, fall back to the 
pypaimon merge reader otherwise, and report the correct data-evolution fallback 
reason.
   
   ### Tests
   
   - 79 related Python tests passed.
   - Flake8, license-header, and diff checks passed.
   


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