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
{
			GridData gd = new GridData( GridData.FILL_HORIZONTAL );
			description.setLayoutData( gd );
			description.setText( Messages.getString( "TaskSelectData.Label.ToBindADataColumn" ) ); 
		}
		tablePreview = new CustomPreviewTable( composite, SWT.SINGLE
				| SWT.H_SCROLL
				| SWT.V_SCROLL
				| SWT.FULL_SELECTION );
		{
			GridData gridData = new GridData( GridData.FILL_HORIZONTAL );
			gridData.widthHint = CENTER_WIDTH_HINT;
			gridData.heightHint = 150;
			tablePreview.setLayoutData( gridData );
			tablePreview.setHeaderAlignment( SWT.LEFT );
			tablePreview.addListener( CustomPreviewTable.MOUSE_RIGHT_CLICK_TYPE,
					this );
		}
		dynamicArea.setCustomPreviewTable( tablePreview );
	}
	private void createDataPreviewButtonArea( Composite parent )
	{
		Composite composite = ChartUIUtil.createCompositeWrapper( parent );
		{
			composite.setLayoutData( new GridData( GridData.FILL_HORIZONTAL
					| GridData.VERTICAL_ALIGN_END ) );
		}
		btnFilters = new Button( composite, SWT.NONE );
		{
			btnFilters.setAlignment( SWT.CENTER );