xiaoran created FLINK-33227:
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Summary: 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
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
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