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
* @throws BirtException
	 */
	private void genBasicDummy( ) throws BirtException
	{
		QueryDefinition qd = new QueryDefinition( );
		qd.setDataSetName( null );
		
		IBaseExpression rowExpr = new ScriptExpression( "new Date()" );
		dummyRowExprName = "Date";
		qd.addResultSetExpression( dummyRowExprName, rowExpr );
		
		IQueryResults qr = myGenDataEngine.prepare( qd ).execute( scope );
		
		queryResultID = qr.getID( );
		IResultIterator ri = qr.getResultIterator( );
		while ( ri.next( ) )
		{
			expectedValue.add( ri.getValue( dummyRowExprName ) );
		}
		
		assertTrue( ri.getResultMetaData( ) != null );
		ri.close( );
		qr.close( );
		myGenDataEngine.shutdown( );
	}
	/**
	 * @throws BirtException
	 */
	private void preBasicDummy( ) throws BirtException
	{