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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