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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-993) [zebra] Abitlity to drop a column group in a table
Date Fri, 02 Oct 2009 22:38:23 GMT
[zebra] Abitlity to drop a column group in a table
--------------------------------------------------

                 Key: PIG-993
                 URL: https://issues.apache.org/jira/browse/PIG-993
             Project: Pig
          Issue Type: Bug
            Reporter: Raghu Angadi
            Assignee: Raghu Angadi
             Fix For: 0.5.0



A Zebra table is stored as multiple sub tables each containing a set of columns called column
group (CG). The user specifies how these columns are grouped while creating a table through
the _storage hint_.

For some of the large tables, it might be necessary for users to remove a set of columns and
retain the rest. This jira provides a way for users to delete an entire column group. 

The following comments will have more details on API and the semantics. 

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