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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1000) support compare and set
Date Wed, 05 Jun 2013 14:46:21 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13675978#comment-13675978
] 

Sean Busbey commented on ACCUMULO-1000:
---------------------------------------

Also, we should avoid leaking information about data being present at a level the user can't
see.

If visibility is really a part of the key, then as far as a user with only access FOOBAR is
concerned, a cell with vis CATSDEE doesn't exist and the absence test should reflect that.

Unless there's a different API already that lets a user say "Given these Auths, can I read
everything in column X.Y.Z?"
                
> support compare and set
> -----------------------
>
>                 Key: ACCUMULO-1000
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1000
>             Project: Accumulo
>          Issue Type: New Feature
>          Components: client, tserver
>            Reporter: Keith Turner
>            Assignee: Keith Turner
>             Fix For: 1.6.0
>
>         Attachments: ACCUMULO-1000-proposal-01.html, ACCUMULO-1000-proposal-01.txt
>
>
> Add support to mutation for compare and set operations.  This would allow user to specify
that a row must contain certain data for a mutation to be applied.

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