Tom Augspurger created ARROW-1586:
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Summary: [PYTHON] serialize_pandas roundtrip loses columns name
Key: ARROW-1586
URL: https://issues.apache.org/jira/browse/ARROW-1586
Project: Apache Arrow
Issue Type: Bug
Components: Python
Affects Versions: 0.7.0
Reporter: Tom Augspurger
Priority: Minor
Fix For: 0.8.0
The serialize / deserialize roundtrip loses {{ df.columns.name }}
{code:python}
In [1]: import pandas as pd
In [2]: import pyarrow as pa
In [3]: df = pd.DataFrame([[1, 2]], columns=pd.Index(['a', 'b'],
name='col_name'))
In [4]: df.columns.name
Out[4]: 'col_name'
In [5]: pa.deserialize_pandas(pa.serialize_pandas(df)).columns.name
{code}
Is this in scope for pyarrow? I suspect it would require an update to the
pandas section of the Schema metadata.
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