public TSStatus createCQ(TCreateCQReq req, ScheduledExecutorService scheduledExecutor) {
    CreateCQProcedure procedure = new CreateCQProcedure(req, scheduledExecutor);
    executor.submitProcedure(procedure);
    return waitingProcedureFinished(procedure);
  }
Generate {@link DropTriggerProcedure} and wait until it finished.

@return {@link TSStatusCode#SUCCESS_STATUS} if the trigger has been dropped successfully,
    {@link TSStatusCode#DROP_TRIGGER_ERROR} otherwise
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/ProcedureManager.java