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From "Gianmarco De Francisci Morales (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-1926) Sample/Limit should take scalar
Date Thu, 23 Jun 2011 10:10:47 GMT

     [ https://issues.apache.org/jira/browse/PIG-1926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gianmarco De Francisci Morales updated PIG-1926:
------------------------------------------------

    Status: Open  (was: Patch Available)

> Sample/Limit should take scalar
> -------------------------------
>
>                 Key: PIG-1926
>                 URL: https://issues.apache.org/jira/browse/PIG-1926
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Daniel Dai
>            Assignee: Gianmarco De Francisci Morales
>              Labels: gsoc2011
>         Attachments: PIG-1926.10.patch, PIG-1926.7.patch, PIG-1926.8.patch, PIG-1926.9.patch,
PIG-1926.patch, PIG-1926.patch, PIG-1926.patch, PIG-1926.patch, PIG-1926.patch, PIG-1926.patch
>
>
> Currently, Limit, Sample only takes a constant. It would be better we can use a scalar
in the place of constant. Eg:
> {code}
> a = load 'a.txt';
> b = group a all;
> c = foreach b generate COUNT(a) as sum;
> d = order a by $0;
> e = limit d c.sum/100;
> {code}
> This is a candidate project for Google summer of code 2011. More information about the
program can be found at http://wiki.apache.org/pig/GSoc2011

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