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[jira] [Created] (ARROW-3479) [R] Support to write record_batch as stream

Javier Luraschi created ARROW-3479:

             Summary: [R] Support to write record_batch as stream
                 Key: ARROW-3479
                 URL: https://issues.apache.org/jira/browse/ARROW-3479
             Project: Apache Arrow
          Issue Type: Improvement
          Components: R
            Reporter: Javier Luraschi

Currently, one can only export a record batch to a file:
record <- arrow::record_batch(data.frame(a = c(1,2,3)))
But to improve performance in Spark's R bindings through sparklyr an improvement is to support streams returning R raw's as follows:
record <- arrow::record_batch(data.frame(a = c(1,2,3)))

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