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Posted to issues@drill.apache.org by "MinJi Kim (JIRA)" <ji...@apache.org> on 2016/03/22 19:13:25 UTC

[jira] [Created] (DRILL-4527) Remove unnecessary code: DrillAvgVarianceConvertlet.java

MinJi Kim created DRILL-4527:
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             Summary: Remove unnecessary code:  DrillAvgVarianceConvertlet.java
                 Key: DRILL-4527
                 URL: https://issues.apache.org/jira/browse/DRILL-4527
             Project: Apache Drill
          Issue Type: Bug
          Components:  Server
            Reporter: MinJi Kim
            Assignee: MinJi Kim


DrillConvertletTable is used as a way to have custom functions.  For example, for EXTRACT(), DrilLConvertletTable.get() returns DrillExtractConvertlet, which returns a custom RexNode for the extract function.  

On the other hand, DrillAvgVarianceConvertlet is never used.  stddev/avg/variance functions are handled by DrillAggregateRule and DrillReduceAggregatesRule.



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