Fixed multi-instance version of queue creation script.

src/NServiceBus.SqlServer/Legacy/MultiInstance/LegacySql.cs

@@ -2,40 +2,54 @@ namespace NServiceBus.Transport.SQLServer
 {
     class LegacySql
     {
-        internal const string CreateQueueText = @"IF NOT  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'{0}') AND type in (N'U'))
-                  BEGIN
-                    EXEC sp_getapplock @Resource = '{0}_lock', @LockMode = 'Exclusive'
+        public static readonly string CreateQueueText = @"
+IF EXISTS (
+    SELECT *
+    FROM sys.objects
+    WHERE object_id = OBJECT_ID(N'{0}')
+        AND type in (N'U'))
+RETURN
 
-                    IF NOT  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'{0}') AND type in (N'U'))
-                    BEGIN
-                        CREATE TABLE {0}(
-                            [Id] [uniqueidentifier] NOT NULL,
-                            [CorrelationId] [varchar](255),
-                            [ReplyToAddress] [varchar](255),
-                            [Recoverable] [bit] NOT NULL,
-                            [Expires] [datetime],
-                            [Headers] [varchar](max) NOT NULL,
-                            [Body] [varbinary](max),
-                            [RowVersion] [bigint] IDENTITY(1,1) NOT NULL
-                        );
+EXEC sp_getapplock @Resource = '{0}_lock', @LockMode = 'Exclusive'
 
-                        CREATE CLUSTERED INDEX [Index_RowVersion] ON {0}
-                        (
-                            [RowVersion]
-                        )
+IF EXISTS (
+    SELECT *
+    FROM sys.objects
+    WHERE object_id = OBJECT_ID(N'{0}')
+        AND type in (N'U'))
+BEGIN
+    EXEC sp_releaseapplock @Resource = '{0}_lock'
+    RETURN
+END
 
-                        CREATE NONCLUSTERED INDEX [Index_Expires] ON {0}
-                        (
-                            [Expires]
-                        )
-                        INCLUDE
-                        (
-                            [Id],
-                            [RowVersion]
-                        )
-                    END
+CREATE TABLE {0} (
+    Id uniqueidentifier NOT NULL,
+    CorrelationId varchar(255),
+    ReplyToAddress varchar(255),
+    Recoverable bit NOT NULL,
+    Expires datetime,
+    Headers nvarchar(max) NOT NULL,
+    Body varbinary(max),
+    RowVersion bigint IDENTITY(1,1) NOT NULL
+);
 
-                    EXEC sp_releaseapplock @Resource = '{0}_lock'
-                  END";
+CREATE CLUSTERED INDEX Index_RowVersion ON {0}
+(
+    RowVersion
+)
+
+CREATE NONCLUSTERED INDEX Index_Expires ON {0}
+(
+    Expires
+)
+INCLUDE
+(
+    Id,
+    RowVersion
+)
+WHERE
+    Expires IS NOT NULL
+
+EXEC sp_releaseapplock @Resource = '{0}_lock'";
     }
 }