Wes McKinney created ARROW-8934:
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Summary: [C++] Add timestamp subtract kernel aliased to int64
subtract implementation
Key: ARROW-8934
URL: https://issues.apache.org/jira/browse/ARROW-8934
Project: Apache Arrow
Issue Type: New Feature
Components: C++
Reporter: Wes McKinney
Fix For: 1.0.0
We can use the same scalar exec function for int64 subtraction as well as
{{(array[TIMESTAMP], array[TIMESTAMP]) -> duration}}.
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