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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:
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Attachment: PIG-1926.10.patch
Attaching PIG-1926.10.patch:
Implemented support and tests for Sample.
Fixed a problem with syntactic predicates in Limit, now it does not break on
inline_op.
All tests pass on my machine.
We can call this a release candidate.
I think it is ready for review.
> 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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