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[jira] [Created] (ARROW-3542) [C++] Use unsafe appends when building array from CSV


Antoine Pitrou created ARROW-3542:
-------------------------------------

             Summary: [C++] Use unsafe appends when building array from CSV
                 Key: ARROW-3542
                 URL: https://issues.apache.org/jira/browse/ARROW-3542
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
    Affects Versions: 0.11.0
            Reporter: Antoine Pitrou
            Assignee: Antoine Pitrou


When reading a Table from a CSV file, we presize each ArrayBuilder with the right number of elements, so we could unsafe appends. It should make things a small bit faster.



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