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https://issues.apache.org/jira/browse/PIG-800?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Gates updated PIG-800:
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Attachment: PIG-800.patch
> script1-hadoop.pig in pig tutorial hangs when run in local mode
> ---------------------------------------------------------------
>
> Key: PIG-800
> URL: https://issues.apache.org/jira/browse/PIG-800
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.2.0
> Reporter: Alan Gates
> Assignee: Alan Gates
> Attachments: PIG-800.patch
>
>
> Any script of the form
> {code}
> B = foreach A generate flatten(X); -- X is a bag
> C = distinct B;
> {code}
> where X is sometimes an empty bag will hang in local mode. If distinct is
> replaced by order by it will also hang.
> The issue is that the flatten in foreach returns STATUS_NULL whenever the bag
> X is empty. PODistinct and POSort handle this incorrectly and go into an
> infinite loop.
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