Kostas Kloudas created FLINK-6197:
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Summary: Add support for iterative conditions.
Key: FLINK-6197
URL: https://issues.apache.org/jira/browse/FLINK-6197
Project: Flink
Issue Type: Bug
Components: CEP
Affects Versions: 1.3.0
Reporter: Kostas Kloudas
Assignee: Kostas Kloudas
Fix For: 1.3.0
So far, the {{where}} clause only supported simple {{FilterFunction}}
conditions.
With this, we want to add support for conditions where the an event is accepted
not only based on its own properties, e.g. name, as it was before, but also
based on some statistic computed over previously accepted events in the
pattern, e.g. if the price is higher than the average of the prices of the
previously accepted events.
This in combination with the recently added quantifiers will allow for a lot
more expressive patterns.
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