[jira] [Created] (ARROW-1585) serialize_pandas round trip fails on integer columns

["Tom Augspurger (JIRA)" <ji...@apache.org>]

Tom Augspurger created ARROW-1585:
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             Summary: serialize_pandas round trip fails on integer columns
                 Key: ARROW-1585
                 URL: https://issues.apache.org/jira/browse/ARROW-1585
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 0.7.0
            Reporter: Tom Augspurger
            Priority: Minor
             Fix For: 0.8.0


This roundtrip fails, since the Integer column isn't converted to a string after deserializing

{code:python}
In [1]: import pandas as pd
im
In [2]: import pyarrow as pa

In [3]: pa.deserialize_pandas(pa.serialize_pandas(pd.DataFrame({"0": [1, 2]}))).columns
Out[3]: Index(['0'], dtype='object')
{code}

That should be an {{ Int64Index([0]) }} for the columns.



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