[jira] [Commented] (PIG-4377) Skewed outer join produce wrong result in some cases

["Rohini Palaniswamy (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-4377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534662#comment-14534662 ] 

Rohini Palaniswamy commented on PIG-4377:
-----------------------------------------

+1.   

[~daijy],
   Can you put more details in the description about the problem inplace of "under certain condition" and also add a small description of what the fix does? It would be easy for future reference instead of having to read through the patch.

> Skewed outer join produce wrong result in some cases
> ----------------------------------------------------
>
>                 Key: PIG-4377
>                 URL: https://issues.apache.org/jira/browse/PIG-4377
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>             Fix For: 0.15.0
>
>         Attachments: PIG-4377-1.patch, PIG-4377-2.patch, reproduce.patch
>
>
> Skewed outer join produce more than expected rows under certain condition. The extra rows contain null left relation. Can be reproduced reliably with reproduce.patch (run SkewedJoin_11).



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