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https://issues.apache.org/jira/browse/HIVE-7283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14046539#comment-14046539
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Gunther Hagleitner commented on HIVE-7283:
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Tests pass without patch. Reverted change in cbo branch.
> CBO: plumb in HepPlanner and FieldTrimmer(ColumnPruner) into Optiq based
> planning
> ---------------------------------------------------------------------------------
>
> Key: HIVE-7283
> URL: https://issues.apache.org/jira/browse/HIVE-7283
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor
> Reporter: Harish Butani
> Assignee: Harish Butani
> Attachments: HIVE-7283.1.patch
>
>
> 1.
> HepPlanner initially used for:
> - Predicate Pushdown
> - Transitive Predicate inference
> - Partition Pruning
> 2. Use Optiq's FieldTrimmer for ColumnPruner
> To begin with the rules are copies of Optiq base rules. Once Optiq is
> refactored to work on Base RelNode classes, the copied rules will be removed.
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