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https://issues.apache.org/jira/browse/SPARK-5354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14285983#comment-14285983
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Yin Huai commented on SPARK-5354:
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Seems our in memory table is a good place to start.
> When possible, correctly set outputPartitioning for leaf SparkPlans
> -------------------------------------------------------------------
>
> Key: SPARK-5354
> URL: https://issues.apache.org/jira/browse/SPARK-5354
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Yin Huai
>
> Right now, Spark SQL is not aware of the partitioning scheme of a leaf
> SparkPlan (e.g. an input table). So, even users want to re-partitioning the
> data in advance, Exchange operators will still be used.
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