Querying for missing fields in RavenDB

gistfile1.cs

using System;
using System.Diagnostics;
using System.Linq;
using System.Threading;
using Raven.Abstractions.Indexing;
using Raven.Client.Embedded;
using Raven.Client.Indexes;
using Raven.Json.Linq;

namespace Raven.Tryouts
{
	public class CustomerIndex : AbstractIndexCreationTask
	{
		public override IndexDefinition CreateIndexDefinition()
		{
			return new IndexDefinition
			{
				Map = @"from doc in docs.Users
						select new {
								Name = doc.Name, 
								StoppedBeatingTheWifeExists = doc.StoppedBeatingTheWife != null
								//StoppedBeatingTheWifeExists = doc.Inner.ContainsKey(""StoppedBeatingTheWife"") ? true : false,
						})"
			
			};
		}
	}

	public class UserV1
	{
		public string Id { get; set; }
		public String Name { get; set; }
	}

	public class UserV2
	{
		public string Id { get; set; }
		public String Name { get; set; }
		public bool? StoppedBeatingTheWife { get; set; }
	}

	class QueryingOnMissingFields
	{
		public void CanFindDocsWithMissingFields()
		{
			using (var store = new EmbeddableDocumentStore
			{
				DataDirectory = @"D:\Source\__RavenDB__\ravendb\Raven.Tryouts\bin\missingfields",
				UseEmbeddedHttpServer = true,
			}.Initialize())
			{
				bool addData = true;
				if (addData)
				{
					var metadata = RavenJObject.Parse("{'Raven-Clr-Type': 'Raven.Tryouts.UserV2', 'Raven-Entity-Name': 'Users' }");
					store.DatabaseCommands.Put("users/1", null, RavenJObject.FromObject(new UserV1 {Name = "A"}), metadata);
					store.DatabaseCommands.Put("users/2", null, RavenJObject.FromObject(new UserV2 {Name = "B", StoppedBeatingTheWife = false}), metadata);
					store.DatabaseCommands.Put("users/3", null, RavenJObject.FromObject(new UserV2 {Name = "C", StoppedBeatingTheWife = true}), metadata);
					store.DatabaseCommands.Put("users/4", null, RavenJObject.FromObject(new UserV2 {Name = "D", StoppedBeatingTheWife = null}), metadata);
				}

				var sp = Stopwatch.StartNew();
				new CustomerIndex().Execute(store);
				Console.WriteLine("indexing...");

				while (store.DatabaseCommands.GetStatistics().StaleIndexes.Length > 0)
				{
					Console.Write("\r{0:#,#} - {1:#,#}", store.DatabaseCommands.GetStatistics().Indexes[0].IndexingAttempts,
									store.DatabaseCommands.GetStatistics().Indexes[0].ReduceIndexingAttempts);
					Thread.Sleep(100);
				}

				var stats = store.DatabaseCommands.GetStatistics();
				Console.WriteLine("Indexed {0} docs in {1}", String.Join(", ", stats.Indexes.Select(x => new { x.Name, x.IndexingSuccesses, x.IndexingErrors })), sp.Elapsed);				

				using (var session = store.OpenSession())
				{
					var stopBeatingTheWifeExists = session.Advanced.LuceneQuery<UserV2>("CustomerIndex")
						.WhereEquals("StoppedBeatingTheWifeExists", "true")
						.ToList();
					Console.WriteLine("StoppedBeatingTheWifeExists:true {0}", String.Join(", ", stopBeatingTheWifeExists.Select(x => x.Id)));

					var stopBeatingTheWifeDoesNotExist = session.Advanced.LuceneQuery<UserV2>("CustomerIndex")
						.WhereEquals("StoppedBeatingTheWifeExists", "false")
						.ToList();
					Console.WriteLine("StoppedBeatingTheWifeExists:false {0}", String.Join(", ", stopBeatingTheWifeDoesNotExist.Select(x => x.Id)));
				}

				Console.WriteLine("Finished, press <ENTER> to exit");
				Console.ReadLine();
			}
		}
	}
}