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From "Sudheesh Katkam (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-4043) FindLimit0Visitor should be applied after Calcite logical transformation
Date Fri, 06 Nov 2015 00:05:27 GMT
Sudheesh Katkam created DRILL-4043:
--------------------------------------

             Summary: FindLimit0Visitor should be applied after Calcite logical transformation
                 Key: DRILL-4043
                 URL: https://issues.apache.org/jira/browse/DRILL-4043
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
            Reporter: Sudheesh Katkam
            Assignee: Sudheesh Katkam


FindLimit0Visitor optimization is applied after Drill logical transformation (i.e. working
on DrillRel node tree), and not after Calcite logical transformation. 

{{RelShuttle}} is meant to be applied on Calcite logical tree. So none of the visitor methods
except {{visit(RelNode other)}} are actually executed, and search termination never happens.



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