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https://issues.apache.org/jira/browse/FLINK-10595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Knauf updated FLINK-10595:
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Labels: (was: stale-major)
Removed "stale-critical|major|minor" label in line with
https://issues.apache.org/jira/browse/FLINK-22429.
> 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: Library / CEP, Table SQL / API
> Reporter: Dawid Wysakowicz
> Priority: Major
>
> 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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