GH-3530: Attempt to switch to a guid Id as some databases do not support the identity generator.

Author: David Ellingsworth

src/NHibernate.Test/NHSpecificTest/GH3530/Entities.cs

@@ -8,7 +8,7 @@ namespace NHibernate.Test.NHSpecificTest.GH3530
 {
 	public class LocaleEntity
 	{
-		public virtual int Id { get; set; }
+		public virtual Guid Id { get; set; }
 		public virtual int IntegerValue { get; set; }
 		public virtual DateTime DateTimeValue { get; set; }
 		public virtual double DoubleValue { get; set; }

src/NHibernate.Test/NHSpecificTest/GH3530/Fixture.cs

@@ -39,7 +39,7 @@ protected override void OnTearDown()
 		protected override void CreateSchema()
 		{
 			var sb = new StringBuilder();
-			var intType = Dialect.GetTypeName(SqlTypeFactory.Int32);
+			var guidType = Dialect.GetTypeName(SqlTypeFactory.Guid);
 			var stringType = Dialect.GetTypeName(SqlTypeFactory.GetAnsiString(255));
 
 			var catalog = GetQuotedDefaultCatalog();
@@ -51,9 +51,9 @@ protected override void CreateSchema()
 
 			if (Dialect.HasDataTypeInIdentityColumn)
 			{
-				sb.Append($"{intType}");
+				sb.Append($"{guidType}");
 			}
-			sb.Append(" ").Append(Dialect.GetIdentityColumnString(DbType.Int32)).Append(", ");
+			sb.Append(" ").Append(Dialect.GetIdentityColumnString(DbType.Guid)).Append(", ");
 
 			// Generate columns
 			sb.Append($"IntegerValue {stringType}, ");

src/NHibernate.Test/NHSpecificTest/GH3530/Mappings.hbm.xml

@@ -2,7 +2,7 @@
 <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="NHibernate.Test"
                    namespace="NHibernate.Test.NHSpecificTest.GH3530">
   <class name="LocaleEntity">
-    <id name="Id" generator="identity" />
+    <id name="Id" generator="guid.comb" />
     <property name="IntegerValue" column="IntegerValue"/>
     <property name="DateTimeValue" column="DateTimeValue"/>
     <property name="DoubleValue" column="DoubleValue"/>