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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