ymZhao1001 opened a new issue, #5711:
URL: https://github.com/apache/iceberg/issues/5711

   ### Feature Request / Improvement
   
   we can collect datafile filesizeinbytes like :
   TableScan scan = table.newScan();
   Iterable<CombinedScanTask> result = scan .planTasks();
   CombinedScanTask task = result.iterator().next();
   DataFile dataFile = task.files().iterator().next().file();
   
   on the other way wce can retrieve the additional information by reading 
manifests.
   In order to read filesizeinbytes in manifest,  we need to collect additional 
metadata when writing manifests. 
   
   The minimum required information (added/deleted filsizeinbytes) can be 
gathered easily.
   
   ### Query engine
   
   _No response_


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