docs: @Override
    public List<SnowflakeColumnMetadata> describeColumns() throws Exception
    {
      return SnowflakeUtil.describeFixedViewColumns(
          commandType == CommandType.UPLOAD ?
          (showEncryptionParameter ?
           UploadCommandEncryptionFacade.class : UploadCommandFacade.class) :
          (showEncryptionParameter ?
           DownloadCommandEncryptionFacade.class : DownloadCommandFacade.class));
    }