Wes McKinney created ARROW-1344:

             Summary: [C++] Calling BufferOutputStream::Write after calling 
Finish crashes
                 Key: ARROW-1344
                 URL: https://issues.apache.org/jira/browse/ARROW-1344
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++, Python
            Reporter: Wes McKinney
             Fix For: 0.7.0

This is publicly exposed in the Python API. If you give a BufferOutputStream to 
some writer class, then call {{get_result}} on the BufferOutputStream, then 
write to the stream, it will dump core. There is a DCHECK that seems to 
disallow this, but this was a root cause of ARROW-1338

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