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https://issues.apache.org/jira/browse/HIVE-11471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14658954#comment-14658954
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Sergey Shelukhin commented on HIVE-11471:
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I mean the total cost of the plan... it's hard to estimate from row counts/etc.
on various stages in big explain.
> Expose query cost estimates (from CBO?) in explain plan
> -------------------------------------------------------
>
> Key: HIVE-11471
> URL: https://issues.apache.org/jira/browse/HIVE-11471
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
>
> Some users of Hive suggested that it would be useful to see abstract cost of
> the query plan in explain, so that different manual rewrites of the query
> could be compared before running.
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