[jira] [Created] (TAJO-1715) Precompute the hash value of various kinds of ids

[Jihoon Son (JIRA)]

Jihoon Son created TAJO-1715:
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             Summary: Precompute the hash value of various kinds of ids
                 Key: TAJO-1715
                 URL: https://issues.apache.org/jira/browse/TAJO-1715
             Project: Tajo
          Issue Type: Improvement
            Reporter: Jihoon Son
            Priority: Minor
             Fix For: 0.11.0


QueryId, ExecutionBlockId, TaskId, and TaskAttemptId are used for key of 
HashMap. Statically maintaining hash value will improve the performance.



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