Internals may expect value is Comparable ---------------------------------------- Key: DROOLS-3848 URL: https://issues.jboss.org/browse/DROOLS-3848 Project: Drools Issue Type: Bug Components: dmn engine Reporter: Matteo Mortari Assignee: Matteo Mortari Priority: Major can compare days and time duration: max(duration("PT6M"), duration("PT5M")) => PT6M but can’t copmapre year and month duration: max(duration("P6Y"), duration("P5Y")) => null