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Posted to dev@hive.apache.org by "Namit Jain (JIRA)" <ji...@apache.org> on 2012/08/22 13:47:38 UTC

[jira] [Commented] (HIVE-3401) Diversify grammar for split sampling

    [ https://issues.apache.org/jira/browse/HIVE-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13439434#comment-13439434 ] 

Namit Jain commented on HIVE-3401:
----------------------------------

I like the idea.
                
> 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
>
> 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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