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https://issues.apache.org/jira/browse/DRILL-5116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kunal Khatua closed DRILL-5116.
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> Enable generated code debugging in each Drill operator
> ------------------------------------------------------
>
> Key: DRILL-5116
> URL: https://issues.apache.org/jira/browse/DRILL-5116
> Project: Apache Drill
> Issue Type: Improvement
> Affects Versions: 1.9.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Minor
> Labels: ready-to-commit
> Fix For: 1.10.0
>
>
> DRILL-5052 adds the ability to debug generated code. Some of the code
> generated by Drill's operators has minor problems when compiled directly
> using the new technique. These issues are ignore by the byte-code-merge
> technique uses in production. This ticket asks to try the DRILL-5052 feature
> in each operator, clean up any minor problems, and ensure each operator
> generates code suitable for debugging. Use the new
> {{CodeGenerator.plainOldJavaCapable()}} method to mark each generated class
> as ready for "plain-old Java" code gen.
> The advantages of this feature are two:
> 1. Ability to step through the generated code to increase understanding of
> existing operators and to ease development of improvements to existing
> operators and of any new operators we choose to create.
> 2. Open the door to experimenting with how to improve performance of the
> generated code.
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