The development version of ARQ now includes support for operations
involving durations for operators "+" and "-", following the operations
in "XQuery/Xpath functions and operations" (F&O).
Some of this uses the Java runtime support for XML datatypes, which is
slightly more permissive than the F&O specification (e.g. you can add a
any xsd:duration to xsd:time, not just xsd:dayTimeDuration - Java
forgets about the meaningless parts).
Supported:
datetime, date, time + duration
(also duration + datetime, date or time)
datetime, date, time - duration
dayTimeDuration * number - > dayTimeDuration
Andy
