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https://issues.apache.org/jira/browse/SPARK-12785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15094987#comment-15094987
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Apache Spark commented on SPARK-12785:
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User 'nongli' has created a pull request for this issue:
https://github.com/apache/spark/pull/10628
> Implement columnar in memory representation
> -------------------------------------------
>
> Key: SPARK-12785
> URL: https://issues.apache.org/jira/browse/SPARK-12785
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Reporter: Nong Li
>
> Tungsten can benefit from having a columnar in memory representation which
> can provide a few benefits:
> - Enables vectorized execution
> - Improves memory efficiency (memory is more tightly packed)
> - Enables cheap serialization/zero-copy transfer with third party components
> (e.g. numpy)
>
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