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https://issues.apache.org/jira/browse/FLINK-33227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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xiaoran updated FLINK-33227:
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    Description: Currently, the cep mode of the Flink API can support next, 
notNext, followedBy, followedByAny, and notFollowedBy semantics, but Flink SQL 
only supports next semantics. The remaining notNext and followedBy semantics 
are implemented by other alternatives, while the notFollowedBy semantics are 
not currently implemented. At present, this semantics is generally implemented 
in business scenarios, such as judging that a user has placed an order within 
15 minutes without paying. Therefore, I suggest to provide new functionality to 
support notFollowedBy in sql mode, along with the other three semantics  (was: 
Currently, the cep mode of the Flink API can support next, notNext, followedBy, 
followedByAny, and notFollowedBy semantics, but Flink SQL only supports next 
semantics. The remaining notNext and followedBy semantics are implemented by 
other alternatives, while the notFollowedBy semantics are not currently 
implemented. At present, this semantics is generally implemented in business 
scenarios, such as judging that a user has placed an order within 15 minutes 
without paying. Therefore, I want to provide new functionality to support 
notFollowedBy in sql mode, along with the other three semantics)

> Flink sql cep support 'notFollowedBy' semantics
> -----------------------------------------------
>
>                 Key: FLINK-33227
>                 URL: https://issues.apache.org/jira/browse/FLINK-33227
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table SQL / API
>    Affects Versions: 1.16.0
>            Reporter: xiaoran
>            Priority: Major
>
> Currently, the cep mode of the Flink API can support next, notNext, 
> followedBy, followedByAny, and notFollowedBy semantics, but Flink SQL only 
> supports next semantics. The remaining notNext and followedBy semantics are 
> implemented by other alternatives, while the notFollowedBy semantics are not 
> currently implemented. At present, this semantics is generally implemented in 
> business scenarios, such as judging that a user has placed an order within 15 
> minutes without paying. Therefore, I suggest to provide new functionality to 
> support notFollowedBy in sql mode, along with the other three semantics



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