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https://issues.apache.org/jira/browse/PIG-1926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gianmarco De Francisci Morales updated PIG-1926:
------------------------------------------------
Attachment: PIG-1926.patch
Modified TypeCheckingRelVisitor in order to correctly cast expression in
LOLimit.
Now the visitor takes into account that LOLimit has an expression.
The return type of the expression must be Integer or Long.
> 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
> Labels: gsoc2011
> Attachments: 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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