[jira] [Created] (FLINK-14001) add a API to enable user to get the operator code generated by Flink engine

[Shang Yuanchun (Jira)]

Dezhi Cai created FLINK-14001:
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             Summary: add a API to enable user to get the operator code generated by Flink engine
                 Key: FLINK-14001
                 URL: https://issues.apache.org/jira/browse/FLINK-14001
             Project: Flink
          Issue Type: Wish
          Components: Runtime / Task
    Affects Versions: 1.9.0
            Reporter: Dezhi Cai
             Fix For: 1.9.1


In Spark, we can invoke  Dataset method "queryExecution.debug.codegen()" to get the code produced by Catalyst.  If we add a similar API to enable user to get the code generated by 
Flink engine, this would be a very nice way to provide more verbose feedback for debugging.
 
reference link : [https://medium.com/virtuslab/spark-sql-under-the-hood-part-i-26077f85ebf0]  



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