Wes McKinney created ARROW-3899:
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Summary: [Python] Table.to_pandas converts Arrow date32[day] to
pandas datetime64[ns]
Key: ARROW-3899
URL: https://issues.apache.org/jira/browse/ARROW-3899
Project: Apache Arrow
Issue Type: Improvement
Components: Python
Reporter: Wes McKinney
Fix For: 0.13.0
This issue was raised here:
https://github.com/wesm/feather/issues/359
I explored this minimally against Arrow master:
https://gist.github.com/wesm/2ebe0ca2461d1ecfba6185777238ad1f
While it's pretty memory-wasteful, it might be better to preserve the intent of
the data type when converting to pandas data structures. It also allows the
data to round trip successfully
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