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https://issues.apache.org/jira/browse/HIVE-10479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pengcheng Xiong updated HIVE-10479:
-----------------------------------
    Summary: CBO: Calcite Operator To Hive Operator (Calcite Return Path) Empty 
tabAlias in columnInfo which triggers PPD  (was: Empty tabAlias in columnInfo 
which triggers PPD)

> CBO: Calcite Operator To Hive Operator (Calcite Return Path) Empty tabAlias 
> in columnInfo which triggers PPD
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-10479
>                 URL: https://issues.apache.org/jira/browse/HIVE-10479
>             Project: Hive
>          Issue Type: Sub-task
>          Components: CBO
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-10479.01.patch, HIVE-10479.patch
>
>
> in ql/src/java/org/apache/hadoop/hive/ql/ppd/OpProcFactory.java, line 477, 
> when aliases contains empty string "" and key is an empty string "" too, it 
> assumes that aliases contains key. This will trigger incorrect PPD. To 
> reproduce it, apply the HIVE-10455 and run cbo_subq_notin.q.



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