Bug 147977 Chart editor does not use container's column bindings
1) create data source 2) create data set: select * from customers 3) create table 4) bind country, customer name to table 5) group by country 6) create a binding for total_by_country which aggregates # of customers in each country. put a data element in group footer and bind to total_by_country 7) in group header put chart 8) in data tab specify inherit from container Result: You see columns for report data set created in step 2. Expected Result: Just 3 columns for the 3 bindings created in 4 and 6.
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/impl/rd/ReportDocumentTest.java
/**
	 *
	 */
	private void genGroupBeforeExpr( ) throws BirtException
	{
		QueryDefinition qd = newReportQuery( );
		GroupDefinition groupDefn = new GroupDefinition( "G1");
		groupDefn.setKeyColumn( "COUNTRY" );
		qd.addGroup( groupDefn );
		qd.addResultSetExpression("COUNTRY", new ScriptExpression( "dataSetRow.COUNTRY" ));
		IBaseExpression rowExpr = new ScriptExpression( "dataSetRow.COUNTRY" );
		rowExpr.setGroupName("G1");
		beforeExprID = "BEFOREEXPRID";
		qd.addResultSetExpression(beforeExprID, rowExpr);
		
		
		
		IQueryResults qr = myGenDataEngine.prepare( qd ).execute( scope );
		queryResultID = qr.getID( );
		
						
		IResultIterator ri = qr.getResultIterator( );
		while ( ri.next( ) )
		{
			if ( ri.getStartingGroupLevel( ) <= 1 )
			{
				expectedValue.add( ri.getValue( beforeExprID ) );
				System.out.println( ri.getValue( beforeExprID ) );
			}