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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (PIG-361) JOIN and cogroup should handle NULLs correctly
Date Fri, 19 Sep 2008 21:34:44 GMT

     [ https://issues.apache.org/jira/browse/PIG-361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Gates resolved PIG-361.
----------------------------

    Resolution: Fixed

PIG-361.patch committed.

> 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
>            Priority: Critical
>             Fix For: types_branch
>
>         Attachments: PIG-361.patch
>
>
> 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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