[jira] [Created] (HIVE-8492) Enhance Constant Folding to propagate constants for simple expressions

["Ashutosh Chauhan (JIRA)" <ji...@apache.org>]

Ashutosh Chauhan created HIVE-8492:
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             Summary: Enhance Constant Folding to propagate constants for simple expressions 
                 Key: HIVE-8492
                 URL: https://issues.apache.org/jira/browse/HIVE-8492
             Project: Hive
          Issue Type: Improvement
          Components: Logical Optimizer
    Affects Versions: 0.14.0
            Reporter: Ashutosh Chauhan
            Assignee: Ashutosh Chauhan


currently it propagates only for projects, can be enhanced to propagate for simple expressions like casts, e.g,
{code}
SELECT src1.key, src1.key + 1, src2.value                                                                    FROM src src1 join src src2 ON src1.key = src2.key AND cast(src1.key as double) = 86; 
{code}




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