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https://issues.apache.org/jira/browse/HIVE-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13530505#comment-13530505
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Lars Francke commented on HIVE-3401:
------------------------------------
I know Namit already asked about it but I think this'd be the relevant Wiki
page to update:
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Sampling
> 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, HIVE-3401.D4821.6.patch,
> HIVE-3401.D4821.7.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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