Wes McKinney created ARROW-1560:
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             Summary: [C++] Kernel implementations for "match" function
                 Key: ARROW-1560
                 URL: https://issues.apache.org/jira/browse/ARROW-1560
             Project: Apache Arrow
          Issue Type: New Feature
          Components: C++
            Reporter: Wes McKinney


Match computes a position index array from an array values into a set of 
categories

{code}
match(['a', 'b', 'a', null, 'b', 'a', 'b'], ['b', 'a'])

return [1, 0, 1, null, 0, 1, 0]
{code}



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