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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-9106) improve the performance of null scan optimizer when several table scans share a physical path
Date Tue, 16 Dec 2014 02:23:13 GMT

     [ https://issues.apache.org/jira/browse/HIVE-9106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pengcheng Xiong updated HIVE-9106:
----------------------------------
    Attachment: HIVE-9106.00.patch

address the performance issue per [~jpullokkaran]'s request

> improve the performance of null scan optimizer when several table scans share a physical
path
> ---------------------------------------------------------------------------------------------
>
>                 Key: HIVE-9106
>                 URL: https://issues.apache.org/jira/browse/HIVE-9106
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>            Priority: Minor
>         Attachments: HIVE-9106.00.patch
>
>
> Current fix HIVE-9053 addresses the correctness issue. The solution can be improved further
when several table scans share a physical path.



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