[
https://issues.apache.org/jira/browse/HBASE-9203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13868759#comment-13868759
]
Liang Xie commented on HBASE-9203:
----------------------------------
another problem: about scan(e.g. there's a filter on the indexed column)
performance. how to decide or evaluate when we do the query into user table
directly and when we do the query into index table first then do the
(multi-)get into user table ?
> Secondary index support through coprocessors
> --------------------------------------------
>
> Key: HBASE-9203
> URL: https://issues.apache.org/jira/browse/HBASE-9203
> Project: HBase
> Issue Type: New Feature
> Reporter: rajeshbabu
> Assignee: rajeshbabu
> Attachments: SecondaryIndex Design.pdf, SecondaryIndex
> Design_Updated.pdf, SecondaryIndex Design_Updated_2.pdf
>
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.1.5#6160)
