Polymorphism not supported in ToJson() ?

[thomasgustafsson123]

I have a POCO with a list of base objects, say:

public class POCO
{
    public List<BaseType> Values { get; set; }
}

BaseType and Derived objects are decorated with e.g. [JsonDerivedType(typeof(InheritedType1), 1)]

If I configure my entity with:

        builder
            .Property(b => b.Entity)
            .HasColumnType("jsonb");

all derived properties are written, but with

        builder.OwnsOne(rd => rd.Entity, r =>
        {
            r.ToJson();
            r.OwnsMany(d => d.Values);
        });

only BaseType properties are written

[roji]

Duplicate of dotnet/efcore#27779

[roji]

This is a limitation on the EF side, not related to the PG provider.