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https://issues.apache.org/jira/browse/HIVE-22785?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krisztian Kasa updated HIVE-22785:
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    Status: Patch Available  (was: Open)

> Update/delete/merge statements not optimized through CBO
> --------------------------------------------------------
>
>                 Key: HIVE-22785
>                 URL: https://issues.apache.org/jira/browse/HIVE-22785
>             Project: Hive
>          Issue Type: Improvement
>          Components: CBO
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Krisztian Kasa
>            Priority: Critical
>         Attachments: HIVE-22785.1.patch, HIVE-22785.10.patch, 
> HIVE-22785.11.patch, HIVE-22785.2.patch, HIVE-22785.2.patch, 
> HIVE-22785.3.patch, HIVE-22785.4.patch, HIVE-22785.5.patch, 
> HIVE-22785.6.patch, HIVE-22785.7.patch, HIVE-22785.8.patch, HIVE-22785.9.patch
>
>
> Currently, CBO is bypassed for update/delete/merge statements.
> To support optimizing these statements through CBO, we need to complete three 
> main tasks: 1) support for sort in Calcite planner, 2) support for SORT in 
> AST converter, and 3) {{RewriteSemanticAnalyzer}} should extend 
> {{CalcitePlanner}} instead of {{SemanticAnalyzer}}.



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