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https://issues.apache.org/jira/browse/HIVE-23973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-23973 started by Jesus Camacho Rodriguez.
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> Use SQL constraints to improve join reordering algorithm (III)
> --------------------------------------------------------------
>
> Key: HIVE-23973
> URL: https://issues.apache.org/jira/browse/HIVE-23973
> Project: Hive
> Issue Type: Improvement
> Components: CBO
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
>
> This issue focuses on pulling non-filtering column appending FK-PK joins to
> the top of the plan. Among other improvements, this will avoid unnecessary
> shuffling of data in intermediate stages.
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