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Posted to dev@drill.apache.org by "Timothy Farkas (JIRA)" <ji...@apache.org> on 2018/02/14 00:12:02 UTC

[jira] [Created] (DRILL-6157) Add HashCode methods to ValueVectors and VectorContainer

Timothy Farkas created DRILL-6157:
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             Summary: Add HashCode methods to ValueVectors and VectorContainer
                 Key: DRILL-6157
                 URL: https://issues.apache.org/jira/browse/DRILL-6157
             Project: Apache Drill
          Issue Type: Improvement
            Reporter: Timothy Farkas
            Assignee: Timothy Farkas


Some operators like HashJoin need to compute the hashcode of rows in value vectors and vector containers. Currently we rely on generated code for HashTables to do this. Recently we have benchmarks indicating that there are no benefits to using generated code in cases like these, so we should replace the generated code with virtual functions to make the codebase easier to work with.



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