[jira] [Created] (FLINK-10595) Support patterns that can produce empty matches

[Shang Yuanchun (Jira)]

Dawid Wysakowicz created FLINK-10595:
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             Summary: Support patterns that can produce empty matches
                 Key: FLINK-10595
                 URL: https://issues.apache.org/jira/browse/FLINK-10595
             Project: Flink
          Issue Type: Sub-task
          Components: CEP, Table API & SQL
            Reporter: Dawid Wysakowicz


CEP library does not emit empty matches. In order to be SQL standard compliant we explicitly forbid patterns that can produce empty matches(patterns that have only optional states) e.g A*



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