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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2016/03/08 20:19:40 UTC

[jira] [Updated] (HIVE-13233) Use min and max values to estimate better stats for comparison operators

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

Jesus Camacho Rodriguez updated HIVE-13233:
-------------------------------------------
    Affects Version/s: 2.1.0

> 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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