[jira] Commented: (PIG-1541) FR Join shouldn't match null values

["Richard Ding (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-1541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12897866#action_12897866 ] 

Richard Ding commented on PIG-1541:
-----------------------------------


Results of test-patch:

{code}
     [exec] +1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to i
     [exec] nclude 6 new or modified tests.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of release audit warnings.
{code}

> 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
>
>
> 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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