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https://issues.apache.org/jira/browse/TRAFODION-2162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15420552#comment-15420552
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ASF GitHub Bot commented on TRAFODION-2162:
-------------------------------------------

GitHub user anoopsharma00 opened a pull request:

    https://github.com/apache/incubator-trafodion/pull/658

    TRAFODION-2162 showplan enhancement to display expr instruction

    display the instruction enum being generated in text format.
    
    Output will include the instruction and look like:
       Clause #2: ex_arith_clause
        ...
        instruction: ADD_BIN16S_BIN16S_BIN16S(0), instrArrayIndex_: 0
    
       Clause #1: ex_comp_clause
    
        OperatorTypeEnum = ITM_GREATER(2024), NumOperands = 3
        ...
        instruction: GT_BIN32S_BIN16S(40), instrArrayIndex_: 218
    
    In addition, some cleanup has been done in expression code.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/anoopsharma00/incubator-trafodion 
ansharma_showplan_br

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-trafodion/pull/658.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #658
    
----
commit 4c83ecab0363b8ddde84c92a7843b26e72c82413
Author: Anoop Sharma <anoop.sha...@esgyn.com>
Date:   2016-08-15T01:35:03Z

    showplan enhancement to display expr instruction
    
    display the instruction enum being generated in
    text format.
    
    Output will include the instruction and look like:
       Clause #2: ex_arith_clause
        ...
        instruction: ADD_BIN16S_BIN16S_BIN16S(0), instrArrayIndex_: 0
    
       Clause #1: ex_comp_clause
    
        OperatorTypeEnum = ITM_GREATER(2024), NumOperands = 3
        ...
        instruction: GT_BIN32S_BIN16S(40), instrArrayIndex_: 218
    
    In addition, some cleanup has been done in expression
    code.

----


> Enhance showplan output to show the expr instruction being generated
> --------------------------------------------------------------------
>
>                 Key: TRAFODION-2162
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-2162
>             Project: Apache Trafodion
>          Issue Type: Improvement
>            Reporter: Anoop Sharma
>            Assignee: Anoop Sharma
>            Priority: Minor
>
> Currently, showplan doesnt show the instruction being generated
> for the conversion, comparison, arith, etc expression.
> This instruction is used at runtime to switch to the appropriate
> case stmt which needs to be executed.
> This enhancement is to display the actual case index that is being
> generated.



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