Philipp Moritz created ARROW-5022:
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Summary: [C++] Implement more "Datum" types for AggregateKernel
Key: ARROW-5022
URL: https://issues.apache.org/jira/browse/ARROW-5022
Project: Apache Arrow
Issue Type: Improvement
Reporter: Philipp Moritz
Currently it gives the following error if the datum isn't an array:
{code:java}
AggregateKernel expects Array datum{code}
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