Support for using another column from the same table in Value Conversions

[dhtek]

Does it possible to use another column from the same table when defining the converter ?
I try to find on the web, but didn't find any answer.

Steps to reproduce

builder.OwnsOne(x => x.Type).Property(x => x.Code).HasColumnName("TypeCode");
builder.Property(x => x.Detail).HasConversion(
x => XmlSerializer.SerializeDetail(x),
x => XmlSerializer.DeserializeDetail<IDetail>("Should be the value from the column TypeCode", x));

Further technical details

EF Core version: 2.1.1
Database Provider: Microsoft.EntityFrameworkCore.SqlServer
IDE: Visual Studio 2017 15.7.3

[ajcvickers]

@dhtek This is currently not possible, but is being tracked as part of #9906