Bug 193296 Subquery does not return value for chart
I've tried 2.1.x and 2.2RC but I get always an error. org.eclipse.birt.report.engine.data.dte.DataGenerationEngine doExecuteQuery SEVERE: Data engine operation failed due to an unexpected exception. Error evaluating Javascript expression. Script engine error: TypeError: Cannot read property "ISO_LAND" from null Script source: source, line: 0, text: row._outer["ISO_LAND"] + Result iterator has no current row. It either has not started or has ended. I would like to build a report based on a query that returns a list of countries eg.: report_query=select country_id from ... where sales>100 for each country I'd like to have a line chart with sales vs. budget eg.: sub_query= select month,bud,sales from ... where country = ? If I drag the subquery into the "main" table, connect parameter to row[]. no problem. I get bud vs. sales values for each country. If I place a chart based on sub_query in the "main" table. I get the error shown above. In this case I have to connect the parameter to row._outer[] and for some reason I don't see any values in the chart preview?!?
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/TaskSelectData.java
private volatile boolean fbException = false;
	public TaskSelectData( )
	{
		super( Messages.getString( "TaskSelectData.TaskExp" ) ); 
		setDescription( Messages.getString( "TaskSelectData.Task.Description" ) ); 
	}
	public void createControl( Composite parent )
	{
		if ( topControl == null || topControl.isDisposed( ) )
		{
			topControl = new Composite( parent, SWT.NONE );
			GridLayout gridLayout = new GridLayout( 3, false );
			gridLayout.marginWidth = 10;
			gridLayout.marginHeight = 10;
			topControl.setLayout( gridLayout );
			topControl.setLayoutData( new GridData( GridData.GRAB_HORIZONTAL
					| GridData.GRAB_VERTICAL ) );
			dynamicArea = new SelectDataDynamicArea( this );
			getCustomizeUI( ).init( );
			placeComponents( );
			createPreviewPainter( );
			init( );
		}
		else
		{
			customizeUI( );
		}
		if ( getChartModel( ) instanceof ChartWithAxes )
		{
			changeTask( null );