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From "Daniel Dai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-20944) Not validate stats during query compilation
Date Tue, 20 Nov 2018 22:53:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-20944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16693870#comment-16693870
] 

Daniel Dai commented on HIVE-20944:
-----------------------------------

With ptest fixes.

> Not validate stats during query compilation 
> --------------------------------------------
>
>                 Key: HIVE-20944
>                 URL: https://issues.apache.org/jira/browse/HIVE-20944
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>            Priority: Major
>         Attachments: HIVE-20944.1.patch, HIVE-20944.2.patch
>
>
> In a discussion with [~ashutoshc], we find currently query planning only use valid stats.
If the stats are outdated, Hive will not get any stats. Hive shall use whatever we can find
in metastore. It does not need to be up to date during query planning.



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