[jira] [Created] (ARROW-2627) [Python] Add option (or some equivalent) to toggle memory mapping functionality when using parquet.ParquetFile or other read entry points

[Wes McKinney (JIRA)]

Wes McKinney created ARROW-2627:
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             Summary: [Python] Add option (or some equivalent) to toggle memory 
mapping functionality when using parquet.ParquetFile or other read entry points
                 Key: ARROW-2627
                 URL: https://issues.apache.org/jira/browse/ARROW-2627
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
            Reporter: Wes McKinney


See issue described in https://github.com/apache/arrow/issues/1946. When 
passing a filename to {{parquet.ParquetFile}}, one cannot control what kind of 
file reader internally is created (OSFile or MemoryMappedFile)



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