ASF GitHub Bot commented on ARROW-2118:

wesm opened a new pull request #1735: ARROW-2118: [C++] Fix misleading error 
when memory mapping a zero-length file
URL: https://github.com/apache/arrow/pull/1735
   This was causing an unintuitive error to bubble up when reading a malformed, 
zero-length Parquet file. To improve the actual Parquet error message, we must 
complete PARQUET-1243

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> [Python] Improve error message when calling parquet.read_table on an empty 
> file
> -------------------------------------------------------------------------------
>                 Key: ARROW-2118
>                 URL: https://issues.apache.org/jira/browse/ARROW-2118
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Wes McKinney
>            Assignee: Wes McKinney
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.9.0
> Currently it raises an exception about memory mapping failing

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