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https://issues.apache.org/jira/browse/HBASE-1728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12737627#action_12737627
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Andrew Purtell commented on HBASE-1728:
---------------------------------------

@Jim: Regarding policy routing performance I think the choice here was between 
Integer and String. I suggest the former so policy routing only needs to do 
integer comparison or bit operations, not operations on arbitrary strings.

> Column family scoping
> ---------------------
>
>                 Key: HBASE-1728
>                 URL: https://issues.apache.org/jira/browse/HBASE-1728
>             Project: Hadoop HBase
>          Issue Type: Sub-task
>            Reporter: Andrew Purtell
>             Fix For: 0.21.0
>
>         Attachments: HBASE-1728.patch
>
>
> Support column family scoping via a new HCD attribute. Add convenience 
> methods. Add Thrift, REST, and Stargate support. Provide initial set of 
> scoping constants and javadoc setting expectations for a simple default 
> binary scoping policy: replicate, or do not. Make the underlying type Integer 
> so more complex edit routing policies are possible. 

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