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https://issues.apache.org/jira/browse/HIVE-8395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14162924#comment-14162924
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Xuefu Zhang commented on HIVE-8395:
-----------------------------------
I think it makes more sense to keep this off by default to allow CBO to
maturized. For those braver users, they can always to turn it out if desired.
> CBO: enable by default
> ----------------------
>
> Key: HIVE-8395
> URL: https://issues.apache.org/jira/browse/HIVE-8395
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Fix For: 0.14.0
>
> Attachments: HIVE-8395.patch
>
>
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