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https://issues.apache.org/jira/browse/DRILL-1774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14230106#comment-14230106
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Paul R. Brown commented on DRILL-1774:
--------------------------------------
Stop by the Jackson user list (https://groups.google.com/d/forum/jackson-user)
or dev list (https://groups.google.com/d/forum/jackson-dev) if you run into
other performance issues, and we can see about helping out.
> Improve JSON Performance
> ------------------------
>
> Key: DRILL-1774
> URL: https://issues.apache.org/jira/browse/DRILL-1774
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - JSON
> Reporter: Jacques Nadeau
> Assignee: Jacques Nadeau
> Fix For: 0.7.0
>
> Attachments: DRILL-1774.patch
>
>
> There are multiple reasons that JSON performance is subpar. We need to
> update the reader to do the following:
> - Avoid double reading (for rewinding)
> - Take advantage of Jackson interning/hashing of field names.
> - Improve field selection behavior. (avoid object creation and multiple
> traversals)
> - Better delineation of allTextMode behavior
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