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https://issues.apache.org/jira/browse/HIVE-20775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16682712#comment-16682712
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Hive QA commented on HIVE-20775:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m 11s{color} 
| {color:red} 
/data/hiveptest/logs/PreCommit-HIVE-Build-14870/patches/PreCommit-HIVE-Build-14870.patch
 does not apply to master. Rebase required? Wrong Branch? See 
http://cwiki.apache.org/confluence/display/Hive/HowToContribute for help. 
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| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-14870/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


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> Factor cost of each SJ reduction when costing a follow-up reduction
> -------------------------------------------------------------------
>
>                 Key: HIVE-20775
>                 URL: https://issues.apache.org/jira/browse/HIVE-20775
>             Project: Hive
>          Issue Type: Bug
>          Components: Physical Optimizer
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>         Attachments: HIVE-20775.01.patch, HIVE-20775.02.patch, 
> HIVE-20775.03.patch, HIVE-20775.04.patch, HIVE-20775.patch
>
>
> Currently, while costing the SJ in a plan, the stats of the a TS that is 
> reduced by a SJ are not adjusted after we have decided to keep a SJ in the 
> tree. Ideally, we could adjust the stats to take into account decisions that 
> have already been made.



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