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
myPreDataEngine = DataEngine.newDataEngine( deContext2 );
		
		this.preBasicGroupLevel2( );
		this.closeArchiveReader( );
	}
	
	/**
	 * @throws BirtException 
	 */
	private void genBasicGroupLevel2( ) throws BirtException
	{
		QueryDefinition qd = newReportQuery( );
		qd.setUsesDetails( false );
		
		IBaseExpression[] rowBeArray = getRowExpr( );
		IBaseExpression[] totalBeArray = getAggrExpr( );
		rowExprName = getRowExprName();
		totalExprName = getAggrExprName();
		prepareExprNameAndQuery( rowExprName,rowBeArray, totalExprName,totalBeArray, qd );
		
		GroupDefinition groupDefn = new GroupDefinition( );
		groupDefn.setKeyColumn( "COUNTRY" );
		qd.addGroup( groupDefn );
		
		groupDefn = new GroupDefinition( );
		groupDefn.setKeyColumn( "CITY" );
		qd.addGroup( groupDefn );
		
		
		IQueryResults qr = myGenDataEngine.prepare( qd ).execute( scope );