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https://issues.apache.org/jira/browse/FLINK-14001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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godfrey he updated FLINK-14001:
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Component/s: (was: Table SQL / Planner)
Table SQL / API
> 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: Improvement
> Components: Table SQL / API
> Reporter: Dezhi Cai
> Priority: Minor
>
> 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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