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https://issues.apache.org/jira/browse/PIG-3777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-3777:
----------------------------
Attachment: PIG-3777-1.patch
Patch committed to 0.12 branch and trunk.
Thanks Karina for reporting!
> Pig 12.0 Documentation
> ----------------------
>
> Key: PIG-3777
> URL: https://issues.apache.org/jira/browse/PIG-3777
> Project: Pig
> Issue Type: Wish
> Components: documentation
> Affects Versions: 0.12.0
> Reporter: Karina Hauser
> Priority: Trivial
> Attachments: PIG-3777-1.patch
>
> Original Estimate: 0.25h
> Remaining Estimate: 0.25h
>
> I think the example for SAMPLE is wrong
> In this example, a scalar expression is used (it will sample approximately
> 1000 records from the input).
> a = load 'a.txt';
> b = group a all;
> c = foreach b generate COUNT(a) as num_rows;
> e = sample d 1000/num_rows;
> There is no relation d and I get a "Projected field [num_rows] does not exist
> in schema" error, I think it need to be
> e = sample a 1000/c.numrows
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