Is this still not supported by Tamino?
Get the following error attempting to use distinct-values on a CentraSite XQuery.
com.softwareag.tamino.db.api.accessor.TXQueryException( message: Error preparing the XQuery (6366, INOXQE6366, Type exception: invalid input for function, Function: distinct-values; line 8, column 8: distinct-values(<object inoId="{tf:getInoId(root($ro))}" las), version: 9.0.0.0.59, java: 1.8.0_51, os: Linux 2.6.32-504.8.1.el6.x86_64 )
#Tamino#webMethods#API-Management