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https://issues.apache.org/jira/browse/HIVE-11171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14659021#comment-14659021
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Prasanth Jayachandran commented on HIVE-11171:
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[~jcamachorodriguez]/[~ashutoshc] Can we get this patch in branch-1? This is
causing stats diff when I tried to commit my patch from HIVE-11405 to branch-1.
> Join reordering algorithm might introduce projects between joins
> ----------------------------------------------------------------
>
> Key: HIVE-11171
> URL: https://issues.apache.org/jira/browse/HIVE-11171
> Project: Hive
> Issue Type: Bug
> Components: CBO
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Fix For: 2.0.0, 1.2.2
>
> Attachments: HIVE-11171.01.patch, HIVE-11171.02.patch,
> HIVE-11171.03.patch, HIVE-11171.5.patch, HIVE-11171.patch, HIVE-11171.patch
>
>
> Join reordering algorithm might introduce projects between joins which causes
> multijoin optimization in SemanticAnalyzer to not kick in.
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