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Posted to issues@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/12/21 17:53:02 UTC

[jira] [Resolved] (IMPALA-2941) Introduce trigger to update stale stats

     [ https://issues.apache.org/jira/browse/IMPALA-2941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong resolved IMPALA-2941.
-----------------------------------
    Resolution: Later

This assumed a particular design for the epic, will just close the subtasks to clean things up.

> Introduce trigger to update stale stats
> ---------------------------------------
>
>                 Key: IMPALA-2941
>                 URL: https://issues.apache.org/jira/browse/IMPALA-2941
>             Project: IMPALA
>          Issue Type: Sub-task
>          Components: Backend, Frontend
>    Affects Versions: Impala 2.2
>            Reporter: Mostafa Mokhtar
>            Priority: Minor
>              Labels: supportability
>
> Statistics should be updated when about 20% of the data in a table changes.
> 20% will be the default on a database level and can be overridden on a table level.



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