| ERROR | [XQST0045] Invalid function namespace |
| CAUSE | It is a static error if the function name in a function declaration is in one of the following namespaces: http: //www.w3.org/XML/1998/namespace, http: //www.w3.org/2001/XMLSchema, http: //www.w3.org/2001/XMLSchema-instance, http: //www.w3.org/2005/xpath-functions. |
| ACTION | None |