Antoine Pitrou created ARROW-13035:
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Summary: [C++] Create a compute function returning indices of
non-zero values
Key: ARROW-13035
URL: https://issues.apache.org/jira/browse/ARROW-13035
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Antoine Pitrou
This would be similar to Numpy's {{nonzero}} function:
[https://numpy.org/doc/stable/reference/generated/numpy.nonzero.html]
{code:python}
>>> arr = np.array([4,5,0,6,0,5])
>>> np.nonzero(arr)
(array([0, 1, 3, 5]),)
{code}
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