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From "Clint Morgan (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-661) Allow to specify a user supplied row key comparator for a table
Date Tue, 03 Jun 2008 18:24:44 GMT
Allow to specify a user supplied row key comparator for a table 
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                 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


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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