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https://issues.apache.org/jira/browse/HBASE-661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12731724#action_12731724
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Alex Newman commented on HBASE-661:
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Does this mean this is no longer blocked?
> Allow to specify a user supplied row key comparator for a table
> ----------------------------------------------------------------
>
> Key: HBASE-661
> URL: https://issues.apache.org/jira/browse/HBASE-661
> Project: Hadoop HBase
> Issue Type: New Feature
> Components: client, master, regionserver
> Affects Versions: 0.2.0
> Reporter: Clint Morgan
> Assignee: Clint Morgan
>
> Now that row keys are byte arrays, users should be able to specify a
> comparator at table creation time.
> My use case for this is to implement secondary indexes. In this case, row
> keys for the index tables will be constructed from an optional prefix of the
> original row key as well as the content of column that is being indexed. Then
> the comparator will first compare based on the key prefix, and break ties by
> deserializing the column values and using the deserialized type's compareTo
> method.
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