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https://issues.apache.org/jira/browse/FLINK-30885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dian Fu reassigned FLINK-30885:
-------------------------------
Assignee: Juntao Hu
> Optional group pattern starts with non-optional looping pattern get wrong
> result on followed-by
> -----------------------------------------------------------------------------------------------
>
> Key: FLINK-30885
> URL: https://issues.apache.org/jira/browse/FLINK-30885
> Project: Flink
> Issue Type: Bug
> Components: Library / CEP
> Affects Versions: 1.16.1
> Reporter: Juntao Hu
> Assignee: Juntao Hu
> Priority: Major
> Fix For: 1.17.0, 1.15.4, 1.16.2
>
>
> {code:java}
> Pattern.begin("A")
> .followedBy(
> Pattern.begin("B").oneOrMore().greedy().consecutive()
> .next("C"))
> .optional()
> .next("D"){code}
> This can match "a1 e1 d1", which is not the expected behavior.
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