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/api/impl/DataExtractionTask.java
{
				
				for(int iNum = 0; iNum < filterExpressions.length; iNum++)
				{
					query.getFilters( ).remove( filterExpressions[ iNum ] );
				}
				filterExpressions = null;
			}
		}
		IResultMetaData metaData = getMetaDateByInstanceID( iid );
		if ( null != metaData )
		{
			return new ExtractionResults( dataIter,
					metaData,
					this.selectedColumns );
		}
		else
		{
			return null;
		}
	}
	private IResultMetaData getMetaDateByInstanceID( InstanceID iid )
	{
		IResultMetaData metaData = null;
		long id = iid.getComponentID( );
		ReportItemDesign design = (ReportItemDesign) report.getReportItemByID( id );
		IDataQueryDefinition query = design.getQuery( );
		if ( null == query )
		{
			return null;