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Posted to issues@flink.apache.org by "Fabian Hueske (JIRA)" <ji...@apache.org> on 2016/01/12 18:40:39 UTC

[jira] [Created] (FLINK-3227) Translate physical Table API plan into DataSet program

Fabian Hueske created FLINK-3227:
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             Summary: Translate physical Table API plan into DataSet program
                 Key: FLINK-3227
                 URL: https://issues.apache.org/jira/browse/FLINK-3227
             Project: Flink
          Issue Type: Sub-task
          Components: Table API
            Reporter: Fabian Hueske


The RelNode tree generated by FLINK-3226 is a 1-to-1 representation of the final DataSet API program. Hence, the translation step only needs to create corresponding operators with correct keys and user-functions. User-functions are implemented as RichFunctions that wrap generated code. In a first version, the wrapping functions are parameterized with a source code string which is generated during the program construction. As a first step, we can reuse much of the code generation logic of the current Table API.
The source code string is compiled in the open() method of the wrapping function and later invoked by the wrapper.



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