def _delete_server_group(self, server_group):

        sql = SQL_SELECT_GROUP_ID.format(server_group['uuid'])
        gid = self._execute(sql).fetchone()[0]

        sql = SQL_DELETE_MEMBER.format(gid)
        self._execute(sql)

        sql = SQL_DELETE_POLICY.format(gid)
        self._execute(sql)

        sql = SQL_DELETE_GROUP.format(server_group['uuid'])
        self._execute(sql)
Uses the sql connector to do the following:
dataset/ETHPy150Open MirantisWorkloadMobility/CloudFerry/cloudferry/lib/os/compute/server_groups.py/ServerGroupsHandler._delete_server_group