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https://issues.apache.org/jira/browse/PIG-850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-850:
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Attachment: PIG-850.patch
When we add extra limit map-reduce operator (see
[PIG-364|http://issues.apache.org/jira/browse/PIG-364]), we should mark the
output file in the original map-reduce as temporary; Otherwise, dump will pick
the wrong output file.
> Dump produce wrong result while "store into" is ok
> --------------------------------------------------
>
> Key: PIG-850
> URL: https://issues.apache.org/jira/browse/PIG-850
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.2.0
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Fix For: 0.3.0
>
> Attachments: PIG-850.patch
>
>
> The following script will wrongly produce 20 output, however, if we change
> dump to "store into", the result is correct. Not sure if the problem is only
> for limited sort case.
> A = load '/user/pig/tests/data/singlefile/studenttab10k' as (name, age, gpa);
> B = order A by gpa parallel 2;
> C = limit B 10;
> dump C;
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