docs: @Deprecated
    public Object fastpath(int fnId, boolean resultType, FastpathArg[] args) throws SQLException {
      // Run it.
      byte[] returnValue = fastpath(fnId, args);
  
      // Interpret results.
      if (!resultType || returnValue == null) {
        return returnValue;
      }
  
      if (returnValue.length == 4) {
        return ByteConverter.int4(returnValue, 0);
      } else if (returnValue.length == 8) {
        return ByteConverter.int8(returnValue, 0);
      } else {
        throw new PSQLException(
            GT.tr("Fastpath call {0} - No result was returned and we expected a numeric.", fnId),
            PSQLState.NO_DATA);
      }
    }