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https://issues.apache.org/jira/browse/SPARK-6715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14396239#comment-14396239
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Apache Spark commented on SPARK-6715:
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User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/5369
> Eliminate duplicate filters from pushdown predicates
> ----------------------------------------------------
>
> Key: SPARK-6715
> URL: https://issues.apache.org/jira/browse/SPARK-6715
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Liang-Chi Hsieh
> Priority: Minor
>
> Now in {{DataSourceStrategy}}, the pushdown predicates are duplicate of
> original {{Filter}} conditions. Thus, some predicates are performed both by
> data source relation and {{Filter}} plan. I think it is a duplicate loading.
> Once the predicates are pushed down and performed by a data source relation,
> it
> can be eliminated from outside {{Filter}} plan's condition.
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