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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (HIVE-13233) Use min and max values to estimate better stats for comparison operators
Date Tue, 08 Mar 2016 19:19:40 GMT

     [ https://issues.apache.org/jira/browse/HIVE-13233?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Work on HIVE-13233 started by Jesus Camacho Rodriguez.
------------------------------------------------------
> Use min and max values to estimate better stats for comparison operators
> ------------------------------------------------------------------------
>
>                 Key: HIVE-13233
>                 URL: https://issues.apache.org/jira/browse/HIVE-13233
>             Project: Hive
>          Issue Type: Bug
>          Components: Statistics
>    Affects Versions: 2.1.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>         Attachments: HIVE-13233.patch
>
>
> We should benefit from the min/max values for each column to calculate more precisely
the number of rows produced by expressions with comparison operators



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