Matthew Roeschke created ARROW-17134:
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Summary: [C++(?)/Python] pyarrow.compute.replace_with_mask does
not replace null when providing an array mask
Key: ARROW-17134
URL: https://issues.apache.org/jira/browse/ARROW-17134
Project: Apache Arrow
Issue Type: Improvement
Components: C++, Python
Affects Versions: 8.0.0
Reporter: Matthew Roeschke
{code:java}
In [1]: import pyarrow as pa
In [2]: arr1 = pa.array([1, 0, 1, None, None])
In [3]: arr2 = pa.array([None, None, 1, 0, 1])
In [4]: pa.compute.replace_with_mask(arr1, [False, False, False, True, True],
arr2)
Out[4]:
<pyarrow.lib.Int64Array object at 0x118a3e320>
[
1,
0,
1,
null, # I would expect 0
null # I would expect 1
]
In [5]: pa.__version__
Out[5]: '8.0.0'{code}
I have noticed this behavior occur with the integer, floating, bool, temporal
types
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