def _delete_child(self, bch, parent_type, parent_uuid, child_type, child_uuid):
    self._cassandra_driver.remove(parent_uuid, columns=[('children:%s:%s' % (child_type, child_uuid))], batch=bch)
    if (parent_type not in self._obj_cache_exclude_types):
        self.update_latest_col_ts(bch, parent_uuid)
def _delete_child(self, bch, parent_type, parent_uuid, child_type, child_uuid):
    self._cassandra_driver.remove(parent_uuid, columns=[('children:%s:%s' % (child_type, child_uuid))], batch=bch)
    if (parent_type not in self._obj_cache_exclude_types):
        self.update_latest_col_ts(bch, parent_uuid)