mb - updated datafresh procedure to ignore the standard delta runner version table

Author: unknown

DataFresh/Resources/PrepareDataFresh.sql

@@ -62,7 +62,7 @@ AS
 
 	-- Delete All data from Changed Tables and Refill
 	DECLARE ChangedTable_Cursor CURSOR FOR
-		SELECT [tablename] FROM #ChangedTables WHERE tablename <> 'df_ChangeTracking'
+		SELECT [tablename] FROM #ChangedTables WHERE tablename not in('df_ChangeTracking', 'dr_DeltaVersion')
 
 	OPEN ChangedTable_Cursor
 	FETCH NEXT FROM ChangedTable_Cursor INTO @TableName

Testing.DataFresh/SqlDataFreshTester.cs

@@ -300,6 +300,19 @@ public void RefreshTheDatabaseSpeedTests()
 			dataFresh.RefreshTheDatabase();
 		}
 
+		[Test]
+		public void ShouldNotRefreshDeltaRunnerTable()
+		{
+			InitializeTheDatabase();
+			SqlDataFresh dataFresh = new SqlDataFresh(connectionString);
+			dataFresh.RemoveDataFreshFromDatabase();
+			dataFresh.PrepareDatabaseforDataFresh(true);
+			ExecuteNonQuery("insert into [dr_deltaversion] ([latestdelta], [hash], [filename]) values (99, 'blah-hash', 'whatever file');");
+			Assert.AreEqual(1, ExecuteScalar("select count(*) from [dr_deltaversion] where [filename] = 'whatever file'"));
+			dataFresh.RefreshTheDatabase();
+			Assert.AreEqual(1, ExecuteScalar("select count(*) from [dr_deltaversion] where [filename] = 'whatever file'"));
+		}
+
 		private void InitializeTheDatabase()
 		{
 			SqlDeltaRunner deltaRunner = new SqlDeltaRunner(connectionString, new DirectoryInfo(deltaPath).FullName, true);