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https://issues.apache.org/jira/browse/PIG-1541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Ding updated PIG-1541:
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Attachment: PIG-1541_1.patch
New patch to address the general case where the join key is tuple.
> FR Join shouldn't match null values
> -----------------------------------
>
> Key: PIG-1541
> URL: https://issues.apache.org/jira/browse/PIG-1541
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: Richard Ding
> Assignee: Richard Ding
> Fix For: 0.8.0
>
> Attachments: PIG-1541.patch, PIG-1541_1.patch
>
>
> Here is an example:
> Data input:
> {code}
> 1 1
> 2
> {code}
> the script
> {code}
> a = load 'input';
> b = load 'input';
> c = join a by $0, b by $0 using 'repl';
> dump c;
> {code}
> generates results that matches null values:
> {code}
> (1,1,1,1)
> (,2,,2)
> {code}
> The regular join, on the other hand, gives the correct results.
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