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/binding/DataSetCacheTest.java
bindingExprGroup[0] = new ScriptExpression( "dataSetRow.COUNTRY" );
		bindingExprGroup[1] = new ScriptExpression( "dataSetRow.CITY" );
		GroupDefinition[] groupDefn = new GroupDefinition[]{
				new GroupDefinition( "group0" ), new GroupDefinition( "group1" )
		};
		groupDefn[0].setKeyExpression( "row.GROUP_COUNTRY" );
		groupDefn[1].setKeyExpression( "row.GROUP_CITY" );
		QueryDefinition qd = newReportQuery( );
		
		if ( groupDefn != null )
		{
			if ( bindingNameGroup != null )
				for ( int i = 0; i < bindingNameGroup.length; i++ )
					qd.addResultSetExpression( bindingNameGroup[i],
							bindingExprGroup[i] );
			for ( int i = 0; i < groupDefn.length; i++ )
				qd.addGroup( groupDefn[i] );
		}
		
		rowBeArray = getRowExpr( );
		totalBeArray = getAggrExpr( );
		bindingNameRow = getRowExprName( );
		bindingExprRow = getAggrExprName( );
		prepareExprNameAndQuery( rowBeArray,
				bindingNameRow,
				totalBeArray,
				bindingExprRow,
				qd );
		SubqueryDefinition subqueryDefn = new SubqueryDefinition( "IAMTEST" );
		subqueryDefn.addResultSetExpression( "COL1",