Github user dawidwys commented on a diff in the pull request: https://github.com/apache/flink/pull/4296#discussion_r131628087 --- Diff: flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa/compiler/NFACompiler.java --- @@ -637,9 +675,23 @@ private boolean isPatternOptional(Pattern<T, ?> pattern) { untilCondition, true); - final IterativeCondition<T> proceedCondition = getTrueFunction(); + IterativeCondition<T> proceedCondition = getTrueFunction(); final State<T> loopingState = createState(currentPattern.getName(), State.StateType.Normal); - loopingState.addProceed(sinkState, proceedCondition); + + if (currentPattern.getQuantifier().hasProperty(Quantifier.QuantifierProperty.GREEDY)) { + State<T> sinkStateCopy = copy(sinkState); --- End diff -- If I understood correctly the copies are needed only in casese where there is the `untilCondition`. Am I right? If so let's create the copy then. Right know there are dangling copies of the next when there is no `untilCondtion`.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---