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Posted to jira@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2020/10/19 12:14:00 UTC

[jira] [Created] (ARROW-10345) [C++] NaN breaks sorting

Antoine Pitrou created ARROW-10345:
--------------------------------------

             Summary: [C++] NaN breaks sorting
                 Key: ARROW-10345
                 URL: https://issues.apache.org/jira/browse/ARROW-10345
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
    Affects Versions: 2.0.0
            Reporter: Antoine Pitrou
             Fix For: 3.0.0


{code:python}
>>> import numpy as np
>>> import pyarrow.compute as pc
>>> pc.sort_indices([3.0, 4.0, 1.0, 2.0, None])
<pyarrow.lib.UInt64Array object at 0x7f78368a0c90>
[
  2,
  3,
  0,
  1,
  4
]
>>> pc.sort_indices([3.0, 4.0, np.nan, 1.0, 2.0, None])
<pyarrow.lib.UInt64Array object at 0x7f783684bf30>
[
  0,
  1,
  2,
  3,
  4,
  5
]
{code}



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