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
public void handleListingBand( BandDesign band, IBaseQueryDefinition query, boolean onGroup, IGroupDefinition groupDefn )
		{
			if ( band != null )
			{
				ArrayList subQueries = (ArrayList)( (ArrayList)query.getSubqueries( ) ).clone( );
				for ( int i = 0; i < band.getContentCount( ); i++ )
				{
					
					build( query, band.getContent( i ) );
				}
				ArrayList subQueriesChanged = (ArrayList)query.getSubqueries( );
	
				if ( subQueriesChanged != null )
				{
					for ( int i = 0; i < subQueriesChanged.size( ); i++ )
					{
						SubqueryDefinition subQuery = (SubqueryDefinition)subQueriesChanged.get( i );
						if ( !subQueries.contains( subQuery ) 
								&& subQuery instanceof SubqueryDefinition )
						{
							( (SubqueryDefinition)subQuery ).setApplyOnGroupFlag( onGroup );
							if ( groupDefn != null )
							{
								subQueriesChanged.remove( subQuery );
								groupDefn.getSubqueries( ).add( subQuery );
								i--;
							}
						}
					}
				}