loudongfeng commented on pull request #925:
URL: https://github.com/apache/parquet-mr/pull/925#issuecomment-909000698


   FYI,Maybe we can make use of this information :
   RowGroup[n].file_offset = RowGroup[n-1].file_offset + 
RowGroup[n-1].total_compressed_size
   total_compressed_size always holds the truth, while file_offset doesn't.
   total_compressed_size is also introduced in for encryption feature.


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