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https://issues.apache.org/jira/browse/HIVE-4904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13747256#comment-13747256
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Navis commented on HIVE-4904:
-----------------------------
[~yhuai] Sorry. I've missed your message.
RS is CPed only when the child of it is JOIN operator and SELECT skips CP if
any of children is FS/UNION/UDTF, etc.
> A little more CP crossing RS boundaries
> ---------------------------------------
>
> Key: HIVE-4904
> URL: https://issues.apache.org/jira/browse/HIVE-4904
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Attachments: HIVE-4904.D11757.1.patch, HIVE-4904.D11757.2.patch
>
>
> Currently, CP context cannot be propagated over RS except for JOIN/EXT. A
> little more CP is possible.
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