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From "Navis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-3401) Diversify grammar for split sampling
Date Fri, 07 Dec 2012 05:25:21 GMT

     [ https://issues.apache.org/jira/browse/HIVE-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Navis updated HIVE-3401:
------------------------

    Status: Patch Available  (was: Open)
    
> Diversify grammar for split sampling
> ------------------------------------
>
>                 Key: HIVE-3401
>                 URL: https://issues.apache.org/jira/browse/HIVE-3401
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Trivial
>         Attachments: HIVE-3401.D4821.2.patch, HIVE-3401.D4821.3.patch, HIVE-3401.D4821.4.patch,
HIVE-3401.D4821.5.patch
>
>
> Current split sampling only supports grammar like TABLESAMPLE(n PERCENT). But some users
wants to specify just the size of input. It can be easily calculated with a few commands but
it seemed good to support more grammars something like TABLESAMPLE(500M). 

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