Wes McKinney created ARROW-8918:
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Summary: [C++] Add cast "metafunction" to FunctionRegistry that
addresses dispatching to appropriate type-specific CastFunction
Key: ARROW-8918
URL: https://issues.apache.org/jira/browse/ARROW-8918
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Wes McKinney
Fix For: 1.0.0
By setting the output type in {{CastOptions}}, we can write
{code}
call_function("cast", [arg], cast_options)
{code}
This simplifies use of casting for binding developers
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