* Apply http://opensimulator.org/mantis/view.php?id=3142

* Changes varchar(36) columns to UUID type in MSSQL - this will be much more efficient
* ===As always, please, please backup your database before applying this patch===
* Thanks Ruud Lathrop (for the patch) and StrawberryFride (for the review)

OpenSim/Data/MSSQL/Resources/016_RegionStore.sql

@@ -0,0 +1,19 @@
+BEGIN TRANSACTION
+
+CREATE TABLE dbo.Tmp_terrain
+	(
+	RegionUUID uniqueidentifier NULL,
+	Revision int NULL,
+	Heightfield image NULL
+	)  ON [PRIMARY]
+	 TEXTIMAGE_ON [PRIMARY]
+
+IF EXISTS(SELECT * FROM dbo.terrain)
+	 EXEC('INSERT INTO dbo.Tmp_terrain (RegionUUID, Revision, Heightfield)
+		SELECT CONVERT(uniqueidentifier, RegionUUID), Revision, Heightfield FROM dbo.terrain WITH (HOLDLOCK TABLOCKX)')
+
+DROP TABLE dbo.terrain
+
+EXECUTE sp_rename N'dbo.Tmp_terrain', N'terrain', 'OBJECT' 
+
+COMMIT