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Posted to issues-all@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2018/06/07 22:59:00 UTC

[jira] [Assigned] (IMPALA-4445) Improve UPSERT NumRowsModified

     [ https://issues.apache.org/jira/browse/IMPALA-4445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong reassigned IMPALA-4445:
-------------------------------------

    Assignee:     (was: Matthew Jacobs)

> Improve UPSERT NumRowsModified
> ------------------------------
>
>                 Key: IMPALA-4445
>                 URL: https://issues.apache.org/jira/browse/IMPALA-4445
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 2.8.0
>            Reporter: Thomas Tauber-Marshall
>            Priority: Major
>              Labels: kudu, supportability
>
> - The NumRowsModified counter in the runtime profile is misleading for UPSERT, as if there are multiple rows in the VALUES/SELECT with the same key it counts each of them, even though they end up modifying the same row in the target table. We should consider fixing this or renaming the counter.



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