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https://issues.apache.org/jira/browse/HIVE-5949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16621693#comment-16621693
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Ke Jia commented on HIVE-5949:
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[~prasanth_j] hi, I am interested with this feature. And have you test the
accurate of the estimation in plan phase, such as filter and join operator?
Thanks for your share!
> In statistics annotation add flag to say if statistics is estimated or
> accurate
> -------------------------------------------------------------------------------
>
> Key: HIVE-5949
> URL: https://issues.apache.org/jira/browse/HIVE-5949
> Project: Hive
> Issue Type: Sub-task
> Components: Statistics
> Affects Versions: 0.13.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Priority: Major
>
> HIVE-5921 estimates the basic statistics (row count/data size) if its not
> available in metastore. It will be better to have a flag which says if the
> statistics is estimated value or accurate value from metastore. Also basic
> statistics state will no longer be useful since even in worst case the state
> will be COMPLETE because of estimation.
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