Illustrates issue in doing simple transform using nullable property.

Nullable Index Fields Issue

    static class NullableInIndex
    {
        public class Person
        {
            public string Name { get; set; }
            public string NickName { get; set; }
            public DateTime? Birthday { get; set; }
        }

        public class PersonQuery
        {
            public string Query { get; set; }
        }

        public class PersonBrief
        {
            public string NickName { get; set; }
            public DateTime? Birthday { get; set; }
        }

        public class Person_PersonBrief : AbstractIndexCreationTask<Person>
        {
            public Person_PersonBrief()
            {
                Map = docs => from doc in docs
                              select new { Query = new object[] { doc.Name, doc.NickName } };

                TransformResults = (db,docs) =>
                    from doc in docs
                    select new { NickName = doc.NickName, Birthday = doc.Birthday };

                Index("Query", FieldIndexing.Analyzed);
            }
        }

        public static void Main()
        {
            var store = new DocumentStore { Url = "http://localhost:8080" };
            store.Initialize();
            store.ExecuteIndex(new Person_PersonBrief());

            using (var session = store.OpenSession())
            {
                session.Store(new Person { Name = "Phil", NickName = "p1", Birthday = DateTime.Now.AddYears(-33) });
                session.Store(new Person { Name = "John", NickName = "j1", Birthday = DateTime.Now.AddYears(-22) });
                session.Store(new Person { Name = "Jamie", NickName = "j2" });
                session.SaveChanges();
            }

            using (var session = store.OpenSession())
            {
                var results = session.Query<PersonQuery, Person_PersonBrief>()
                    .Where(x => x.Query.StartsWith("J"))
                    .AsProjection<PersonBrief>()
                    .ToList();

                foreach(var item in results)
                {
                    Console.WriteLine("{0} {1}", item.NickName, item.Birthday);
                }
            }

            Console.ReadLine();
        }
    }