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Posted to dev@pig.apache.org by "Alan Gates (JIRA)" <ji...@apache.org> on 2008/09/19 23:34:44 UTC
[jira] Resolved: (PIG-361) JOIN and cogroup should handle NULLs
correctly
[ 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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