[jira] [Created] (ARROW-14289) [C++] Change Scanner::Head to return a RecordBatchReader

[Neal Richardson (Jira)]

Neal Richardson created ARROW-14289:
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             Summary: [C++] Change Scanner::Head to return a RecordBatchReader
                 Key: ARROW-14289
                 URL: https://issues.apache.org/jira/browse/ARROW-14289
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++, R
            Reporter: Neal Richardson
             Fix For: 7.0.0


Following ARROW-9731 and ARROW-13893. This would make it more natural to work 
with ExecPlans that return a RecordBatchReader when you Run them. 
Alternatively, we could move the business to RecordBatchReader::Head.



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