8.0.0 From HasColumnType("jsonb") to OwnsOne(.., d => d.ToJson()) for Dyctionary<enum,string>

[max1997dc]

When pass from Npgsql.EntityFrameworkCore.PostgreSQL 7.0.11 to Npgsql.EntityFrameworkCore.PostgreSQL 8.0.0

Project File:
...



all
runtime; build; native; contentfiles; analyzers; buildtransitive

all runtime; build; native; contentfiles; analyzers; buildtransitive ...

Fluent EntityTypeConfiguration:
...
#if NET8_0_OR_GREATER
entity.OwnsOne(e => e.DictionaryProp, d => d.ToJson("dictionary_prop"));
#else
entity.Property(e => e.DictionaryProp).HasColumnType("jsonb");
#endif
...

Entity Model definition:
...
public Dictionary<EnumOne, string>? DictionaryProp { get; set; }
...

when I materialize any object I have the error:
System.ArgumentOutOfRangeException: 'Index was out of range. Must be non-negative and less than the size of the collection. Arg_ParamName_Name'

If I change in the EntityTypeConfiguration the OwnsOne with entity.Ignore(e => e.DictionaryProp); all working so I detect that the problem is in it.
The problem before was putting the property name on ToJson becouse EFCore.NamingConventions 8.0.0-rc.2 not work well yet but I see that already are working on it.

Thanks

[roji]

EF's ToJson support does not support arbitrary dictionaries, only strongly-typed mappings. If you need to use such a dictionary, you have to stay with the traditional Npgsql-specific POCO design. I'll update the docs to reflect this.

[roji]

Duplicate of dotnet/efcore#29825