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https://issues.apache.org/jira/browse/HBASE-9203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13739318#comment-13739318
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Anoop Sam John commented on HBASE-9203:
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There are still some more CP hooks which are not contributed back. Also same
changes to make the across region (within a RS) transaction kind of stuff.
I guess this is there in our future roadmap to support a cross region
transaction(regions within same RS). I opened one JIRA for that. Based on the
patch will get inputs for making a patch for that issue. Will work on that
later if it sounds interesting generally.
> 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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