jp0317 commented on issue #6129:
URL: https://github.com/apache/arrow-rs/issues/6129#issuecomment-2278848848

   Thanks @alamb! IMHO the current `file::metadata` also lacks some features 
that might be helpful (and are available in [c++ 
implementation](https://github.com/apache/arrow/tree/main/cpp)). For instance, 
[getting a complete Thrift-serialized representation of the 
FileMetaData](https://github.com/apache/arrow/blob/main/cpp/src/parquet/metadata.h#L369-L371),
 [finding the index given the column dot-string 
path](https://github.com/apache/arrow/blob/main/cpp/src/parquet/schema.h#L429-L434),
 [finding the parent of a 
field](https://github.com/apache/arrow/blob/main/cpp/src/parquet/schema.h#L131).
 


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