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https://issues.apache.org/jira/browse/HBASE-11438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14095172#comment-14095172
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Anoop Sam John commented on HBASE-11438:
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bq.Only when parsing visibility expressions will we need to differentiate
between the characters that make up a label identifier and operators in the
expression. There we require operator-like chars in the identifier to be quoted
Yes there to differentiate, we will quote it. What I was thinking is when a
label contains these special op characters, user has to quote it. Not just in
CellVisibility but also in Authorizations. If the auth label is quoted we do NO
validation. But when it is not, we can validate the presence of special op
chars. And so HBASE-10883 still present. This was in my mind though not so
strong about. If you both feel that is not really needed I will also go with
you.
> [Visibility Controller] Support UTF8 character as Visibility Labels
> -------------------------------------------------------------------
>
> Key: HBASE-11438
> URL: https://issues.apache.org/jira/browse/HBASE-11438
> Project: HBase
> Issue Type: Improvement
> Components: security
> Affects Versions: 0.98.4
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 0.98.6
>
> Attachments: HBASE-11438_v1.patch, HBASE-11438_v2.patch,
> HBASE-11438_v3.patch, HBASE-11438_v4.patch, HBASE-11438_v5.patch,
> HBASE-11438_v6.patch, HBASE-11438_v7.patch, HBASE-11438_v8.patch,
> HBASE-11438_v9.patch
>
>
> This would be an action item that we would be addressing so that the
> visibility labels could have UTF8 characters in them. Also allow the user to
> use a client supplied API that allows to specify the visibility labels inside
> double quotes such that UTF8 characters and cases like &, |, ! and double
> quotes itself could be specified with proper escape sequence. Accumulo too
> provides one such API in the client side.
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