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From "Christopher Tubbs (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ACCUMULO-2439) Add a NOT (!) operator to ColumnVisibility
Date Mon, 24 Nov 2014 18:03:13 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-2439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Christopher Tubbs resolved ACCUMULO-2439.
-----------------------------------------
    Resolution: Won't Fix

I'm closing this issue (and the related open review) as "Won't Fix" for now. The consensus
from the lengthy [mailing list discussion|http://apache-accumulo.1065345.n5.nabble.com/quot-NOT-quot-operator-in-visibility-string-td7949.html]
appears to be against this feature (at least, in the current form).

To revisit this, please open further discussion on the dev@accumulo.apache.org mailing list.

> Add a NOT (!) operator to ColumnVisibility
> ------------------------------------------
>
>                 Key: ACCUMULO-2439
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2439
>             Project: Accumulo
>          Issue Type: New Feature
>          Components: master
>    Affects Versions: 1.5.1
>            Reporter: Joe Ferner
>            Priority: Minor
>              Labels: patch, security
>         Attachments: ACCUMULO_2439.patch
>
>
> This patch adds a NOT "!" operator to ColumnVisibility.
> The syntax is as follows:
> !a
> (!a)&(!b)
> a&(!b)
> a&(!(b|c))
> Because of the nature of the current visibility parsing algorithm the additional parentheses
are required.
> In the shell, the "\!" requires escaping. This is due to how JLine parses the command
and attempts to substitute "!" with history.



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