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https://issues.apache.org/jira/browse/PIG-361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Olga Natkovich reassigned PIG-361:
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Assignee: Alan Gates (was: Shravan Matthur Narayanamurthy)
Reassigning back to Alan since he is looking into join optimization
> JOIN and cogroup should handle NULLs correctly
> ----------------------------------------------
>
> Key: PIG-361
> URL: https://issues.apache.org/jira/browse/PIG-361
> Project: Pig
> Issue Type: Sub-task
> Affects Versions: types_branch
> Reporter: Pradeep Kamath
> Assignee: Alan Gates
> Fix For: types_branch
>
>
> JOIN should follow SQL semantics .i.e if the join key is a null or part of
> the join key is null in the first table, it should not join with similar keys
> in the second table.
> Cogroup should coalesce all NULL key rows into one group.
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