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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (HBASE-18075) Support namespaces and tables with non-latin alphabetical characters
Date Mon, 22 May 2017 15:36:04 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Josh Elser reopened HBASE-18075:

[~chia7712], thanks for catching that. Let me put up an addendum.

I had tried to grep for the pattern, but apparently missed at least one :)

> Support namespaces and tables with non-latin alphabetical characters
> --------------------------------------------------------------------
>                 Key: HBASE-18075
>                 URL: https://issues.apache.org/jira/browse/HBASE-18075
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: 2.0.0
>         Attachments: HBASE-18075.001.patch, HBASE-18075.002.patch, HBASE-18075.003.patch
> On the heels of HBASE-18067, it would be nice to support namespaces and tables with names
that fall outside of Latin alphabetical characters and numbers.
> Our current regex for allowable characters is approximately {{\[a-zA-Z0-9\]+}}.
> It would be nice to replace {{a-zA-Z}} with Java's {{\p\{IsAlphabetic\}}} which will
naturally restrict the unicode character space down to just those that are part of the alphabet
for each script (e.g. latin, cyrillic, greek).
> Technically, our possible scope of allowable characters is, best as I can tell, only
limited by the limitations of ZooKeeper itself https://zookeeper.apache.org/doc/r3.4.10/zookeeperProgrammers.html#ch_zkDataModel
(as both table and namespace are created as znodes).

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