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Posted to issues@tajo.apache.org by "Hyunsik Choi (JIRA)" <ji...@apache.org> on 2014/06/24 15:48:24 UTC

[jira] [Created] (TAJO-888) (Unbrella) Refactor DAG framework

Hyunsik Choi created TAJO-888:
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             Summary: (Unbrella) Refactor DAG framework
                 Key: TAJO-888
                 URL: https://issues.apache.org/jira/browse/TAJO-888
             Project: Tajo
          Issue Type: Improvement
            Reporter: Hyunsik Choi


We designed the ealier DAG framework in 2011. Since then, I have faced  new requirements for more efficient distributed query execution and more optimization opportunities. Since the requirements require lots of work, I have delayed them.

The main purpose of this issue is to record and track the additional requirements and new features. This is an umbrella issue. Later, we would make an overall refactoring plan by using these well-defined requirements.



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