* 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/010_UserStore.sql

@@ -0,0 +1,24 @@
+BEGIN TRANSACTION
+
+CREATE TABLE dbo.Tmp_avatarattachments
+	(
+	UUID uniqueidentifier NOT NULL,
+	attachpoint int NOT NULL,
+	item uniqueidentifier NOT NULL,
+	asset uniqueidentifier NOT NULL
+	)  ON [PRIMARY]
+
+IF EXISTS(SELECT * FROM dbo.avatarattachments)
+	 EXEC('INSERT INTO dbo.Tmp_avatarattachments (UUID, attachpoint, item, asset)
+		SELECT CONVERT(uniqueidentifier, UUID), attachpoint, CONVERT(uniqueidentifier, item), CONVERT(uniqueidentifier, asset) FROM dbo.avatarattachments WITH (HOLDLOCK TABLOCKX)')
+
+DROP TABLE dbo.avatarattachments
+
+EXECUTE sp_rename N'dbo.Tmp_avatarattachments', N'avatarattachments', 'OBJECT' 
+
+CREATE NONCLUSTERED INDEX IX_avatarattachments ON dbo.avatarattachments
+	(
+	UUID
+	) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
+
+COMMIT