----- Original Message -----
From: Yan Zhou (JIRA) <j...@apache.org>
To: pig-dev@hadoop.apache.org <pig-dev@hadoop.apache.org>
Sent: Fri Oct 02 18:16:23 2009
Subject: [jira] Updated: (PIG-993) [zebra] Abitlity to drop a column group in a
table
[
https://issues.apache.org/jira/browse/PIG-993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yan Zhou updated PIG-993:
-------------------------
Attachment: zebra-drop-cg.patch
This patych should be applied after the patch for Jira992 is applied.
> [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
>
> Attachments: DropColumnGroupExample.java, zebra-drop-cg.patch,
> zebra-drop-cg.patch
>
>
> 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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