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Posted to dev@drill.apache.org by "Yuliya Feldman (JIRA)" <ji...@apache.org> on 2015/02/11 08:14:12 UTC

[jira] [Created] (DRILL-2209) Save on CPU cycles by adding Project with column that has hash calculated

Yuliya Feldman created DRILL-2209:
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             Summary: Save on CPU cycles by adding Project with column that has hash calculated
                 Key: DRILL-2209
                 URL: https://issues.apache.org/jira/browse/DRILL-2209
             Project: Apache Drill
          Issue Type: Improvement
          Components: Execution - Flow, Query Planning & Optimization
            Reporter: Yuliya Feldman
            Assignee: Yuliya Feldman


Related to DRILL-133. Wrapping HashToRandomExhcnage and/or LocalExchange with Project operator with additional column that represents hash function of column(s) we are hashing on. This is to save CPU cycles and not recalculate hash every time



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