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Date: Thu, 15 Aug 2013 16:32:52 +0000 (UTC)
From: "Ted Yu (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12663357.1376376165660.73059.1376584372895@arcas>
In-Reply-To: <JIRA.12663357.1376376165660@arcas>
References: <JIRA.12663357.1376376165660@arcas>
Subject: [jira] [Commented] (HBASE-9203) Secondary index support through
 coprocessors
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    [ https://issues.apache.org/jira/browse/HBASE-9203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13741153#comment-13741153 ] 

Ted Yu commented on HBASE-9203:
-------------------------------

bq. we can add index tables to system namespaces
How do you deal with permissions ?
Suppose user A has access to tables in namespace A. Would you grant permission on hbase:A-index to user A ?

I think using metadata across releases would be more consistent.
                
> Secondary index support through coprocessors
> --------------------------------------------
>
>                 Key: HBASE-9203
>                 URL: https://issues.apache.org/jira/browse/HBASE-9203
>             Project: HBase
>          Issue Type: New Feature
>    Affects Versions: 0.98.0
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>
> We have been working on implementing secondary index in HBase and open sourced  on hbase 0.94.8 version.
> The project is available on github.
> https://github.com/Huawei-Hadoop/hindex
> This Jira is to support secondary index on trunk(0.98).
> Following features will be supported.
> -          multiple indexes on table,
> -          multi column index,
> -          index based on part of a column value,
> -          equals and range condition scans using index, and
> -          bulk loading data to indexed table (Indexing done with bulk load)
> Most of the kernel changes needed for secondary index is available in trunk. Very minimal changes needed for it.

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