[jira] [Created] (ARROW-2714) [C++/Python] Variable step size slicing for arrays

["Florian Jetter (JIRA)" <ji...@apache.org>]

Florian Jetter created ARROW-2714:
-------------------------------------

             Summary: [C++/Python] Variable step size slicing for arrays
                 Key: ARROW-2714
                 URL: https://issues.apache.org/jira/browse/ARROW-2714
             Project: Apache Arrow
          Issue Type: New Feature
            Reporter: Florian Jetter


Array slicing should support variable step sizes

The current behavior raises an {{IndexError}}, e.g.
{code}
In [8]: import pyarrow as pa
In [9]: pa.array([1, 2, 3])[::-1]
---------------------------------------------------------------------------
IndexError Traceback (most recent call last)
<ipython-input-9-20da5f9ab67a> in <module>()
----> 1 pa.array([1, 2, 3])[::-1]

array.pxi in pyarrow.lib.Array.__getitem__()

array.pxi in pyarrow.lib._normalize_slice()

IndexError: only slices with step 1 supported
{code}



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