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Posted to issues@hive.apache.org by "Zoltan Haindrich (Jira)" <ji...@apache.org> on 2020/07/06 15:33:00 UTC

[jira] [Updated] (HIVE-23806) Avoid clearing column stat states in all partition in case schema is extended

     [ https://issues.apache.org/jira/browse/HIVE-23806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltan Haindrich updated HIVE-23806:
------------------------------------
    Description: 
in case there are many partitions; adding a new column without cascade may take a while - because we want to make sure in schema evolution cases that we don't reuse stats later-on by mistake...
however this is not neccessary in case the schema is extended

> Avoid clearing column stat states in all partition in case schema is extended
> -----------------------------------------------------------------------------
>
>                 Key: HIVE-23806
>                 URL: https://issues.apache.org/jira/browse/HIVE-23806
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>
> in case there are many partitions; adding a new column without cascade may take a while - because we want to make sure in schema evolution cases that we don't reuse stats later-on by mistake...
> however this is not neccessary in case the schema is extended



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