Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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8.0.0
Description
Here's a failing test case to demonstrate the issue:
def test_mutates_dtype(): import pyarrow as pa expected = np.dtype('<m8') assert np.dtype(np.timedelta64) == expected df = pd.DataFrame({"a": [np.timedelta64()]}) t = pa.Table.from_pandas(df) t.to_pandas() assert np.dtype(np.timedelta64) == expected
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