code: def get_uuid_list(dbconn):
      
      cur = dbconn.cursor()
      tables = get_table_list(dbconn)
      uuids = set()
      for table in tables:
          cur.execute("SELECT (UUID) FROM '{table}'".format(table=table))
          uuid = set([i[0] for i in cur.fetchall()])
          if uuid:
              uuids.update(uuid)
      return uuids
docs: Get a list of tables that exist in dbconn
      :param dbconn: master database connection
      :return: List of uuids in the database