[Monetdb-developers] external function for XQuery

Dear MonetDB developers,

I'am trying to use MonetDB XQuery for a programmative purpose and I need to invoke external functions into the XQuery engine (e.g. declare function random() as xs:double external). Does MonetDB XQuery support external C/C++/Java functions? If yes, how I can use them? If not, this feature will be implemented in the future?

Thanks in advance, Andrea