protected override void Up(MigrationBuilder migrationBuilder)
 {
     migrationBuilder.AddCustomFunction <GetGamesStatisticsFunction>();
     migrationBuilder.AddCustomFunction <GetLoss1ptStatisticsFunction>();
     migrationBuilder.AddCustomFunction <GetWins2ptsStatisticsFunction>();
     migrationBuilder.AddCustomFunction <GetWins3ptsStatisticsFunction>();
     migrationBuilder.AddCustomFunction <GetCompleteStatisticsFunction>();
     migrationBuilder.AddCustomFunction <GetScoreBoardStatisticsFunction>();
 }