Github user dianfu commented on the issue:
https://github.com/apache/flink/pull/2487
@asdf2014 We're currently working on integrating Flink Table & SQL API with
CEP. It will add more capacity to the Flink cep library and also makes it more
easily to use. An initial design doc can be got
[here](https://docs.google.com/document/d/1HaaO5eYI1VZjyhtVPZOi3jVzikU7iK15H0YbniTnN30/edit#).
The prototype and detailed design doc will come out very soon.
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