Provider-specific date/time types (e.g. NpgsqlDate) not supported in 2.1.0

[iflight]

After update to net core 2.1 and Npgsql.EntityFrameworkCore.PostgreSQL 2.1, EF throw exception:

System.InvalidOperationException: "The property 'TBReestr.TBrDateEnd' is of type 'Nullable<NpgsqlDate>' which is not supported by current database provider.

And same problem with Nullable<NpgsqlDateTime>.

part of Model:

    public class TBReestr
    {
        public long TBrId { get; set; }
        public NpgsqlDate? TBrDateStart { get; set; }
        public NpgsqlDate? TBrDateEnd { get; set; }
 }

modelBuilder:

     modelBuilder.Entity<TBReestr>(entity =>
            {
                entity.HasKey(e => e.TBrId);

                entity.ToTable("tBReestr");

                entity.Property(e => e.TBrDateStart)
                    .HasColumnName("tBR_DateStart");

                entity.Property(e => e.TBrDateEnd)
                    .HasColumnName("tBR_DateEnd");
}

Connection:

services.AddEntityFrameworkNpgsql().AddDbContextPool<DataContext>(options => options.UseNpgsql(configuration.GetConnectionString("DataConnection")));

Npgsql version: 4.0
Npgsql.EntityFrameworkCore.PostgreSQL 2.1
net core 2.1
PostgreSQL version: 9.6.6
Operating system: Win10

[iflight]

Why I use NpgsqlDate\NpgsqlDateTime instead of DateTime? We use (+-)Infinity values of timestamp in postgres base (Default values for some data in db). DateTime doesn't support it (maybe infinity must be mapped to DateTime.Max/.Min values, now i convert it in code).
Migrate to NodaTime not easy when you has a lot of code with manipulating DateTime.
p.s. Sorry for my English :(

[roji]

You can specify Convert Infinity DateTime=true to access infinity values as DateTime.{Max,Min}Value, this allows you to avoid using the Npgsql-interactive specific types which are frankly not that great.

[roji]

Moving to backlog as there's not much request for this, and we're considering deprecating the provider-specific date/time types altogether (npgsql/npgsql#2009).