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https://issues.apache.org/jira/browse/ARROW-4709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17661731#comment-17661731
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Rok Mihevc commented on ARROW-4709:
-----------------------------------
This issue has been migrated to [issue
#21235|https://github.com/apache/arrow/issues/21235] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [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: Ben Kietzman
> Assignee: Ben Harkins
> Priority: Minor
> Labels: good-second-issue, pull-request-available
> Fix For: 11.0.0
>
> Time Spent: 4h 20m
> Remaining Estimate: 0h
>
> 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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