Joris Van den Bossche created ARROW-7547:
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             Summary: [C++] [Python] [Dataset] Additional reader options in 
ParquetFileFormat
                 Key: ARROW-7547
                 URL: https://issues.apache.org/jira/browse/ARROW-7547
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++ - Dataset, Python
            Reporter: Joris Van den Bossche


[looking into using the datasets machinery in the current python parquet code]

In the current python API, we expose several options that influence reading the 
parquet file (eg {{read_dictionary}} to indicate to read certain BYTE_ARRAY 
columns directly into a dictionary type, or {{memory_map}}, {{buffer_size}}).

Those could be added to {{ParquetFileFormat}}.



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