Github user twalthr commented on the pull request: https://github.com/apache/flink/pull/1556#issuecomment-177517981 @ChengXiangLi The code generation will be similar to the old Table API. The main difference is that the code generation already happens at the client side. The generated code is passed to a wrapper `Function`. The compilation happens on the cluster but TypeInformation is not shipped there anymore. I will try to come up with an example of a project operator tomorrow.
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