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Posted to issues@arrow.apache.org by "Benjamin Kietzman (JIRA)" <ji...@apache.org> on 2019/02/27 23:31:00 UTC

[jira] [Created] (ARROW-4709) [C++] Optimize for ordered JSON fields

Benjamin Kietzman created ARROW-4709:
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             Summary: [C++] Optimize for ordered JSON fields
                 Key: ARROW-4709
                 URL: https://issues.apache.org/jira/browse/ARROW-4709
             Project: Apache Arrow
          Issue Type: New Feature
          Components: C++
            Reporter: Benjamin Kietzman
            Assignee: Benjamin Kietzman
             Fix For: 0.13.0


Fields appear consistently ordered in most JSON data in the wild, but the JSON parser currently looks fields up in a hash table. The ordering can probably be exploited to yield better performance when looking up field indices



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