Bug 123726 "Top n", "Bottom n" in highlight dialog doesn't work.
Description: "Top n", "Bottom n" in highlight dialog doesn't work. Steps to reproduce: 1. Add a highlight for a table. 2. Set highlight rule: "account_id", "top n", "3", let its font color red. 3. Preview the report, it doesn't work. Attached is design file.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedQuery.java
{
			if(isPrepared)return;
			
			this.parentScope = targetScope;
			dataSource = findDataSource( );
			if ( outerRts != null )
			{
				outerResults = ((QueryResults) outerRts );
				if ( outerResults.queryExecutor == null )
				{
					
					throw new DataException( ResourceConstants.RESULT_CLOSED );
				}
				this.nestedLevel = outerResults.queryExecutor.nestedLevel + 1;
			}
			
			
			
			
			dataSet = newDataSetRuntime();
			assert dataSet != null;
			
			openDataSource( );
				
			
			dataSet.beforeOpen();
			
			ExpressionProcessorManager.registerInstance(
					new ExpressionProcessor( null, null, dataSet, null ));