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https://issues.apache.org/jira/browse/SPARK-17357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15590649#comment-15590649
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Apache Spark commented on SPARK-17357:
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User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/15558
> Simplified predicates can't be pushed down through operators because of the
> rule order in Optimizer
> ---------------------------------------------------------------------------------------------------
>
> Key: SPARK-17357
> URL: https://issues.apache.org/jira/browse/SPARK-17357
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Liang-Chi Hsieh
>
> In Optimizer, Filter operator will go through the rules PushDownPredicate,
> CombineFilters and BooleanSimplification.
> Under this rule order, it is possibly that some predicates that should be
> able to push down, can't be pushed down through operators.
> We should fix it.
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