GH-3530: The MicrosoftDataSqlClientDriver does not support the DbData…

…Reader.GetChar method, wrap it with the SqlServerDbDataReader.

src/NHibernate/Async/Driver/MicrosoftDataSqlClientDriver.cs

@@ -0,0 +1,36 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by AsyncGenerator.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.Common;
+using NHibernate.AdoNet;
+using NHibernate.Dialect;
+using NHibernate.Engine;
+using NHibernate.SqlTypes;
+using NHibernate.Util;
+
+namespace NHibernate.Driver
+{
+	using System.Threading.Tasks;
+	using System.Threading;
+	public partial class MicrosoftDataSqlClientDriver : ReflectionBasedDriver, IEmbeddedBatcherFactoryProvider, IParameterAdjuster
+	{
+
+		public override async Task<DbDataReader> ExecuteReaderAsync(DbCommand command, CancellationToken cancellationToken)
+		{
+			cancellationToken.ThrowIfCancellationRequested();
+			var reader = await (command.ExecuteReaderAsync(cancellationToken)).ConfigureAwait(false);
+
+			return new SqlServerDbDataReader(reader);
+		}
+	}
+}

src/NHibernate/Driver/MicrosoftDataSqlClientDriver.cs

@@ -13,7 +13,7 @@ namespace NHibernate.Driver
 	/// <summary>
 	///     A NHibernate Driver for using the SqlClient DataProvider
 	/// </summary>
-	public class MicrosoftDataSqlClientDriver : ReflectionBasedDriver, IEmbeddedBatcherFactoryProvider, IParameterAdjuster
+	public partial class MicrosoftDataSqlClientDriver : ReflectionBasedDriver, IEmbeddedBatcherFactoryProvider, IParameterAdjuster
 	{
 		const byte MaxTime = 5;
 
@@ -217,5 +217,12 @@ public override IResultSetsCommand GetResultSetsCommand(ISessionImplementor sess
 		{
 			return new BasicResultSetsCommand(session);
 		}
+
+		public override DbDataReader ExecuteReader(DbCommand command)
+		{
+			var reader = command.ExecuteReader();
+
+			return new SqlServerDbDataReader(reader);
+		}
 	}
 }