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From "Richard Ding (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-1541) FR Join shouldn't match null values
Date Fri, 13 Aug 2010 19:39:19 GMT

     [ https://issues.apache.org/jira/browse/PIG-1541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Richard Ding updated PIG-1541:
------------------------------

    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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