Support of geometry/geography/hierarchyid data type

[sqlkbs]

In MS SQL database, when a table has column using geometry, geography, or hierarchyid data type, DAB will fail with following error. Any consideration of supporting these data types?

fail: Azure.DataApiBuilder.Service.Startup[0]
Unable to complete runtime initialization. Refer to exception for error details.
Azure.DataApiBuilder.Service.Exceptions.DataApiBuilderException: Cannot obtain Schema for entity DHCollSpatial with underlying database object source: dbo.DHCollSpatial due to: DataReader.GetFieldType(3) returned null.
at Azure.DataApiBuilder.Core.Services.SqlMetadataProvider3.HandleOrRecordException(Exception e) in /src/src/Core/Services/MetadataProviders/SqlMetadataProvider.cs:line 90 at Azure.DataApiBuilder.Core.Services.SqlMetadataProvider3.PopulateObjectDefinitionForEntities() in /src/src/Core/Services/MetadataProviders/SqlMetadataProvider.cs:line 919
at Azure.DataApiBuilder.Core.Services.SqlMetadataProvider`3.InitializeAsync() in /src/src/Core/Services/MetadataProviders/SqlMetadataProvider.cs:line 273
at Azure.DataApiBuilder.Core.Services.MetadataProviders.MetadataProviderFactory.InitializeAsync() in /src/src/Core/Services/MetadataProviders/MetadataProviderFactory.cs:line 64
at Azure.DataApiBuilder.Service.Startup.PerformOnConfigChangeAsync(IApplicationBuilder app) in /src/src/Service/Startup.cs:line 599