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From "Zoltan Haindrich (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-17651) Profile TableScanOperator in case stats gathering is on
Date Tue, 03 Oct 2017 12:22:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zoltan Haindrich reassigned HIVE-17651:
---------------------------------------

    Assignee: Zoltan Haindrich

> Profile TableScanOperator in case stats gathering is on
> -------------------------------------------------------
>
>                 Key: HIVE-17651
>                 URL: https://issues.apache.org/jira/browse/HIVE-17651
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>         Attachments: HIVE-17651.01ex.patch, HIVE-17651.02rc.patch
>
>
> It seems to me that there might be some overhead when the operator is gathering the stats;

> also check: it seems that in case vectorization is on ; the collected rowcount would
be invalid



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