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https://issues.apache.org/jira/browse/SPARK-13840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-13840:
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Assignee: Apache Spark
> Disable Project Push Down Through Filter
> ----------------------------------------
>
> Key: SPARK-13840
> URL: https://issues.apache.org/jira/browse/SPARK-13840
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Xiao Li
> Assignee: Apache Spark
> Priority: Critical
>
> Now, ColumnPruning and PushPredicateThroughProject reverse each other's
> effect. Optimizer rules always reach the max iteration when optimizing some
> queries. Thus, we should disable columnPruning when hitting Filter for
> enabling predicate push down through project.
> The issue becomes worse when having another rule NullFiltering, which add
> extra Filters.
> In addition, columnPruning should not push Project through non-deterministic
> Filters.
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