Function create_func_not

sql/item_xmlfunc.cc:1098–1101

static Item *create_func_not(MY_XPATH *xpath, Item **args, uint nargs)
{ 
  return new Item_func_not(nodeset2bool(xpath, args[0]));
}


static Item *create_func_ceiling(MY_XPATH *xpath, Item **args, uint nargs)