- xquery_client_init():   make sure that the MIL variable we use are of the right type.
- xquery_client_init():
  make sure that the MIL variable we use are of the right type.

- xquery_client_end():
  clear MIL variable to typed-NIL instead of void-NIL

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb