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Posted to dev@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2017/10/23 13:40:00 UTC

[jira] [Created] (ARROW-1712) [C++] Add method to BinaryBuilder to reserve space for value data

Wes McKinney created ARROW-1712:
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             Summary: [C++] Add method to BinaryBuilder to reserve space for value data
                 Key: ARROW-1712
                 URL: https://issues.apache.org/jira/browse/ARROW-1712
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Wes McKinney


The {{Resize}} and {{Reserve}} methods only reserve space for the value offsets. When building binary/string arrays with a known size (or some reasonable estimate), it would be more efficient to reserve once at the beginning to prevent internal reallocations



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