System.Dynamic.Linq.Core + PostreSql call date_part function

Question

Hi to all and Sorry for my bad English!

I'm doing some tests with Entity Framework Core 5 + Postgre + dynamic linq core

My DataContext is defined like this:

 public class Context: DbContext {

    public DbSet<Models.Anagrafica> Anagrafiche {get; set; }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        optionsBuilder.UseNpgsql(@"Host=XYZ;Database=XYZ;Username=XYZ;Password=XYZ");
        base.OnConfiguring(optionsBuilder);
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Models.Anagrafica>().ToTable("Anagrafiche");
        modelBuilder.Entity<Models.Anagrafica>().Property(p => p.Id)HasColumnName("id");
        modelBuilder.Entity<Models.Anagrafica>().Property(p => p.RagioneSociale).HasColumnName ("ragionesociale");
        modelBuilder.Entity<Models.Anagrafica>().Property(p => p.DataAttivazione).HasColumnName("dataattivazione");
        base.OnModelCreating (modelBuilder);
    }
}

The entity Anagrafica is defined as follows:

public class Anagrafica {
    public int Id { get; set; }
    public string RagioneSociale { get; set; }
    public DateTime? DataAttivazione { get; set; }
}

Question: Is it possible to use the date_part function in the where?

If I run the code

var data =  context.Anagrafiche.Where("date_part(\"week\", dataattivazione) = @0",1).ToList();

I get the error message

System.Linq.Dynamic.Core.Exceptions.ParseException: 'No applicable method 'date_part' exists in type 'Anagrafica''

Is it possible to use database functions and/or UDF in Dynamic Linq? If it is possible to do it what am I wrong?

Thanks!