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
return getResultQuery( query, value );
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.engine.ir.ReportItemVisitor#visitTextItem(org.eclipse.birt.report.engine.ir.TextItemDesign)
		 */
		public Object visitTextItem( TextItemDesign text, Object value )
		{
			BaseQueryDefinition query = createQuery( text, value );
			HashMap exprs = text.getExpressions( );
			if ( exprs != null )
			{
				Iterator ite = exprs.entrySet( ).iterator( );
				while ( ite.hasNext( ) )
				{
					Map.Entry entry = (Map.Entry) ite.next( );
					assert entry.getValue( ) instanceof String;
					String newExpr = transformExpression( entry.getValue( ).toString( ), query, null );
					entry.setValue( newExpr );
				}				
			}
			transformExpressions( text, query );
			return getResultQuery( query, value );
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.engine.ir.ReportItemVisitor#visitTableItem(org.eclipse.birt.report.engine.ir.TableItemDesign)
		 */