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Posted to dev@parquet.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/09/04 20:46:00 UTC

[jira] [Created] (PARQUET-1413) [C++] Remove virtual calls from parquet::Comparator hot paths on writing file

Wes McKinney created PARQUET-1413:
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             Summary: [C++] Remove virtual calls from parquet::Comparator hot paths on writing file
                 Key: PARQUET-1413
                 URL: https://issues.apache.org/jira/browse/PARQUET-1413
             Project: Parquet
          Issue Type: Improvement
          Components: parquet-cpp
            Reporter: Wes McKinney
             Fix For: cpp-1.6.0


Having virtual calls on the innermost loop of writing to a file would be best avoided. While we need to provide for users to write custom comparators (I think?), an implementation of a single-value comparison should be inlined into an array-oriented update step so that the per-element looping does not contain a virtual call



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