[jira] [Created] (FLINK-1678) Extend internals documentation: program flow, optimizer, ...

[Shang Yuanchun (Jira)]

Robert Metzger created FLINK-1678:
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             Summary: Extend internals documentation: program flow, optimizer, ...
                 Key: FLINK-1678
                 URL: https://issues.apache.org/jira/browse/FLINK-1678
             Project: Flink
          Issue Type: Task
            Reporter: Robert Metzger






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