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From "Pradeep Kamath (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-361) JOIN and cogroup should handle NULLs correctly
Date Wed, 06 Aug 2008 17:40:44 GMT
JOIN and cogroup should handle NULLs correctly
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                 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
             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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