Bug 182680 Use feature of new Aggregation framework of Data Engine.
DataEngine will implement new aggregation framework in 2.2.0RC0. After the implementation is finished Engine should go ahead to use new column bindings in definition of map/highlight.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
* @see org.eclipse.birt.report.engine.ir.IReportItemVisitor#visitExtendedItem(org.eclipse.birt.report.engine.ir.ExtendedItemDesign)
		 */
		public Object visitExtendedItem( ExtendedItemDesign item, Object value )
		{
			
			ExtendedItemHandle handle = (ExtendedItemHandle) item.getHandle( );
			
			ReportItemHandle referenceHandle = handle.getDataBindingReference( );
			if ( referenceHandle != null )
			{
				IDataQueryDefinition[] queries = report
						.getQueryByReportHandle( referenceHandle );
				if ( queries != null && queries.length > 0 )
				{
					registerQueryToHandle( item, queries );
					for ( int i = 0; i < queries.length; i++ )
					{
						IDataQueryDefinition referenceQuery = queries[i];
						if ( referenceQuery instanceof BaseQueryDefinition )
						{
							( (BaseQueryDefinition) referenceQuery )
									.setCacheQueryResults( true );
						}
						else if ( referenceQuery instanceof CubeQueryDefinition )
						{
							( (CubeQueryDefinition) referenceQuery )
									.setCacheQueryResults( true );
						}
					}
					IDataQueryDefinition query = queries[0];