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https://issues.apache.org/jira/browse/HBASE-10016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13828981#comment-13828981
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Anoop Sam John commented on HBASE-10016:
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+1 for the idea
> Make use of backward seek implemented in reverse scan support for range
> queries.
> --------------------------------------------------------------------------------
>
> Key: HBASE-10016
> URL: https://issues.apache.org/jira/browse/HBASE-10016
> Project: HBase
> Issue Type: Sub-task
> Reporter: rajeshbabu
> Assignee: rajeshbabu
> Fix For: 0.98.0
>
>
> We can use backward seek in case of range queries based on value.
> Example:
> Lets suppose main table data as below
> row1 : c
> row2 : b
> row3 : d
> Then in index table value will be part of rowkey.
> b: row2
> c :row1
> d: row3
> In this case first seek point we get from index table is row2 and next is
> row1.
> When the current seek point is less than previous seek point then we can use
> backward seek which will be supported in HBASE-4811(Support reverse Scan)
> which gives better performance than closing and reseek to the lesser rowkey.
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