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https://issues.apache.org/jira/browse/ACCUMULO-739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13443318#comment-13443318
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Christopher Tubbs commented on ACCUMULO-739:
--------------------------------------------

Ed-

I agree. I actually don't see a need to require quoting to use the dot 
character. I think it's reasonable to add it as a valid character in the 
labels, possibly along with spaces. My only point was to express disagreement 
with Dave's "allow all un-reserved characters", which could prevent any future 
enhancements.

To Keith's idea, I think quoting could be nice in the future, though I agree 
that it might best be left to implement when that use case arrives. Also, it 
might be easier to avoid quoting entirely, and only provide escapes for 
reserved characters.

Example: ((Sears|H\&M|Disney Store)&Store Manager)
vs.: ((Sears|"H&M"|"Disney Store")&"Store Manager")

                
> Please add dot (.) as a valid character in column visibility tokens
> -------------------------------------------------------------------
>
>                 Key: ACCUMULO-739
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-739
>             Project: Accumulo
>          Issue Type: New Feature
>          Components: client, master, test, thrift, tserver
>    Affects Versions: 1.5.0, 1.5.0-SNAPSHOT
>            Reporter: Ivan Bella
>            Assignee: Billie Rinaldi
>            Priority: Critical
>             Fix For: 1.5.0, 1.5.0-SNAPSHOT
>
>         Attachments: ACCUMULO-739.patch
>
>
> Please add dot (.) as a valid character in column visibility tokens.  This 
> would allow us to implement hierarchical access control mechanisms.

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