[jira] [Created] (HIVE-22637) Avoid cost based rules during generating expressions from AST

[Vineet Garg (Jira)]

Vineet Garg created HIVE-22637:
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             Summary: Avoid cost based rules during generating expressions from 
AST
                 Key: HIVE-22637
                 URL: https://issues.apache.org/jira/browse/HIVE-22637
             Project: Hive
          Issue Type: Improvement
          Components: Query Planning
            Reporter: Vineet Garg
            Assignee: Vineet Garg


genExprNode uses default dispatcher which fire rules based on cost, computation 
of cost is expensive and looks un-necessary.



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