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https://issues.apache.org/jira/browse/HIVE-8144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14136160#comment-14136160
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Ashutosh Chauhan commented on HIVE-8144:
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+1
> CBO: HiveProjectRel factory should create RelSubSets
> ----------------------------------------------------
>
> Key: HIVE-8144
> URL: https://issues.apache.org/jira/browse/HIVE-8144
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Reporter: Harish Butani
> Assignee: Harish Butani
> Attachments: HIVE-8144.1.patch
>
>
> Explicitly set traits in new ProjectRel based on child.
> Using RelOptRule.convert can cause creation of a RelSubSet.
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