[jira] [Created] (PARQUET-1646) [C++] Use arrow::Buffer for buffered dictionary indices in DictEncoder instead of std::vector

[Wes McKinney (Jira)]

Wes McKinney created PARQUET-1646:
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             Summary: [C++] Use arrow::Buffer for buffered dictionary indices 
in DictEncoder instead of std::vector
                 Key: PARQUET-1646
                 URL: https://issues.apache.org/jira/browse/PARQUET-1646
             Project: Parquet
          Issue Type: Improvement
          Components: parquet-cpp
            Reporter: Wes McKinney
             Fix For: cpp-1.6.0


Follow up to ARROW-6411



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