add inline index in data block for data which are not clustered together
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                 Key: HBASE-5457
                 URL: https://issues.apache.org/jira/browse/HBASE-5457
             Project: HBase
          Issue Type: New Feature
            Reporter: He Yongqiang


As we are go through our data schema, and we found we have one large column 
family which is just duplicating data from another column family and is just a 
re-org of the data to cluster data in a different way than the original column 
family in order to serve another type of queries efficiently.

If we compare this second column family with similar situation in mysql, it is 
like an index in mysql. So if we can add inline block index on required 
columns, the second column family then is not needed.

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