[jira] [Created] (FLINK-6927) Support pattern group in CEP

[Shang Yuanchun (Jira)]

Dian Fu created FLINK-6927:
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             Summary: Support pattern group in CEP
                 Key: FLINK-6927
                 URL: https://issues.apache.org/jira/browse/FLINK-6927
             Project: Flink
          Issue Type: Bug
          Components: CEP
            Reporter: Dian Fu
            Assignee: Dian Fu


We should add support for pattern group. This would enrich the set of supported patterns. For example, users can write patterns like this with this feature available:
{code}
 A --> (B --> C.times(3)).optional() --> D
{code}
or
{code}
A --> (B --> C).times(3) --> D
{code}




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