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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-197) Implement Enforcer that forces physical planner to choose specified algorithms
Date Mon, 23 Sep 2013 04:46:02 GMT
Hyunsik Choi created TAJO-197:
---------------------------------

             Summary: Implement Enforcer that forces physical planner to choose specified
algorithms
                 Key: TAJO-197
                 URL: https://issues.apache.org/jira/browse/TAJO-197
             Project: Tajo
          Issue Type: Improvement
          Components: physical operator, planner/optimizer
            Reporter: Hyunsik Choi
            Assignee: Hyunsik Choi
             Fix For: 0.2-incubating


Tajo worker generates a physical plan from a logical plan received from QueryMaster. However,
some plans need to force a physical planner to choose specified algorithms. 

Traditionally, Enforcer plays a role to provide physical properties of a query plan and enforce
physical algorithms. We also need this feature.

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