Exception while generating typed ids with value converters #2431
Description
Hi.
I have a problem that is similar to #1439. I want to use strongly typed ids in my project. I configure them with a corresponding ValueConverter and UseHiLo(). Migration is generated without any errors, but any attempt to save a new entity throws an exception:
System.ArgumentException: The 'NpgsqlSequenceValueGeneratorFactory' cannot create a value generator for property 'WeatherForecast.Id'. Only integer properties are supported.
at Npgsql.EntityFrameworkCore.PostgreSQL.ValueGeneration.Internal.NpgsqlSequenceValueGeneratorFactory.Create(IProperty property, NpgsqlSequenceValueGeneratorState generatorState, INpgsqlRelationalConnection connection, IRawSqlCommandBuilder rawSqlCommandBuilder, IRelationalCommandDiagnosticsLogger commandLogger)
at Npgsql.EntityFrameworkCore.PostgreSQL.ValueGeneration.Internal.NpgsqlValueGeneratorSelector.Select(IProperty property, IEntityType entityType)
at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.ValueGenerationManager.Generate(InternalEntityEntry entry, Boolean includePrimaryKey)
at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.InternalEntityEntry.SetEntityState(EntityState entityState, Boolean acceptChanges, Boolean modifyProperties, Nullable`1 forceStateWhenUnknownKey)
at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.EntityGraphAttacher.PaintAction(EntityEntryGraphNode`1 node)
at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.EntityEntryGraphIterator.TraverseGraph[TState](EntityEntryGraphNode`1 node, Func`2 handleNode)
at Microsoft.EntityFrameworkCore.ChangeTracking.Internal.EntityGraphAttacher.AttachGraph(InternalEntityEntry rootEntry, EntityState targetState, EntityState storeGeneratedWithKeySetTargetState, Boolean forceStateWhenUnknownKey)
at Microsoft.EntityFrameworkCore.DbContext.SetEntityState(InternalEntityEntry entry, EntityState entityState)
at Microsoft.EntityFrameworkCore.DbContext.SetEntityStates(IEnumerable`1 entities, EntityState entityState)
at Microsoft.EntityFrameworkCore.DbContext.AttachRange(IEnumerable`1 entities)
at Microsoft.EntityFrameworkCore.DbContext.AttachRange(Object[] entities)
at StrongIdProblem.Controllers.WeatherForecastController.Get() in /Users/me/RiderProjects/StrongIdProblem/StrongIdProblem/Controllers/WeatherForecastController.cs:line 36
The problem stays if I use UseIdentityByDefaultColumn instead of UseHiLo.
I made a minimal reproducing project based on the standard ASP.NET Core template application: https://github.com/rmihael/StrongIdProblem.