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
{
								Iterator ite = drillThrough.getParameters( )
										.entrySet( ).iterator( );
								while ( ite.hasNext( ) )
								{
									Map.Entry entry = (Map.Entry) ite.next( );
									entry.setValue( ( String ) newExpressions.get( expressionIndex++ ) );
								}
							}
						}
						break;
					case ActionDesign.ACTION_HYPERLINK :
						action.setHyperlink( (String) newExpressions.get( expressionIndex++ ) );
						break;
					default :
						assert false;
				}
			}
		}
		private ITotalExprBindings getNewExpressionBindings(
				ReportItemDesign item, IBaseQueryDefinition query,
				String groupName )
		{
			List expressions = new ArrayList( );
			expressions.add( item.getTOC( ) );
			expressions.add( item.getBookmark( ) );
			expressions.add( item.getOnCreate( ) );
			expressions.add( item.getOnRender( ) );
			expressions.add( item.getOnPageBreak( ) );
			HighlightDesign highlights = item.getHighlight( );