[jira] [Reopened] (HIVE-21443) Better usability for SHOW COMPACTIONS

["Vineet Garg (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-21443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vineet Garg reopened HIVE-21443:
--------------------------------

Reverted the commit since it is causing test failures. Please make sure to get clean run (green) before pushing to master.

> Better usability for SHOW COMPACTIONS
> -------------------------------------
>
>                 Key: HIVE-21443
>                 URL: https://issues.apache.org/jira/browse/HIVE-21443
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>            Reporter: Todd Lipcon
>            Assignee: Peter Vary
>            Priority: Major
>         Attachments: HIVE-21443.addendum.patch, HIVE-21443.patch
>
>
> Currently on a test cluster the output of 'SHOW COMPACTIONS' has 117k rows. This makes it basically useless to work with.
> For better usability, we should support syntax like 'SHOW COMPACTIONS IN <database>' or maybe 'SHOW COMPACTIONS ON <table>' (particular syntax to be chosen for consistency with other operations I suppose).
> Alternatively (or maybe in addition) it seems like it would be nice to expose the same data in a queryable table (eg in information_schema or a system namespace) so that I could do things like: SELECT dbname, state, count(*) from compactions group by 1,2;



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