Ashutosh Chauhan commented on PIG-926:

Findbugs warning is about dummyTuple. A dummyTuple is used as an argument to 
call appropriate overloaded getNext() of physical operator. Since this is just 
a marker, it is initialized as null and never updated. Findbugs thinks that it 
will always be null, which is true, but it doesn't affect in any way. There is 
no workaround to get rid of this warning.

> Merge-Join phase 2
> ------------------
>                 Key: PIG-926
>                 URL: https://issues.apache.org/jira/browse/PIG-926
>             Project: Pig
>          Issue Type: Improvement
>          Components: impl
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>            Priority: Minor
>         Attachments: mj_phase2_1.patch
> This jira is created to keep track of phase-2 work for MergeJoin. Various 
> limitations exist in phase-1 for Merge Join which are listed on: 
> http://wiki.apache.org/pig/PigMergeJoin Those will be addressed here.

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