Github user wuchong commented on a diff in the pull request: https://github.com/apache/flink/pull/4145#discussion_r123138630 --- Diff: flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa/NFA.java --- @@ -1131,6 +1152,7 @@ private void serializeStates(Set<State<T>> states, DataOutputView out) throws IO nameSerializer.serialize(transition.getTargetState().getName(), out); actionSerializer.serialize(transition.getAction(), out); + // backward compatibility serializeCondition(transition.getCondition(), out); --- End diff -- I'm not sure. Do we need to backward compatible to previous version (like 1.3.0 which serializes conditions) ?
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