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Posted to issues@trafodion.apache.org by "Qifan Chen (JIRA)" <ji...@apache.org> on 2015/07/27 16:56:05 UTC

[jira] [Created] (TRAFODION-1425) Parallel access to native HBase tables

Qifan Chen created TRAFODION-1425:
-------------------------------------

             Summary: Parallel access to native HBase tables
                 Key: TRAFODION-1425
                 URL: https://issues.apache.org/jira/browse/TRAFODION-1425
             Project: Apache Trafodion
          Issue Type: Bug
          Components: sql-cmp
            Reporter: Qifan Chen


Trafodion does not create a range partitioning function for native HBase tables. As a result, access to these tables is serial which can hinder the query performance. 

The work will be done against the compiler and the following four sub-tasks are necessary to address the issue.  

1. JNI code to fetch the start/end key per range, similar to Java code already in place :: getRegionsNodeName(). 
2. create desc_struct list 
3. create the NAColumnArray to describe the row key, column family, column name, time stamp and the value
4. call help function createRangePartitioningFunction()






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