[jira] [Created] (ARROW-17134) [C++(?)/Python] pyarrow.compute.replace_with_mask does not replace null when providing an array mask

["Matthew Roeschke (Jira)" <ji...@apache.org>]

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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