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
cmbDataSet.setEnabled( !bDS );
		btnNewData.setEnabled( !bDS
				&& getDataServiceProvider( ).isInvokingSupported( ) );
		btnNewData.setVisible( getDataServiceProvider( ).isEclipseModeSupported( ) );
		if ( bDS )
		{
			
			getDataServiceProvider( ).setDataSet( null );
		}
	}
	private void refreshTableColor( )
	{
		
		for ( int i = 0; i < tablePreview.getColumnNumber( ); i++ )
		{
			tablePreview.setColumnColor( i,
					ColorPalette.getInstance( )
							.getColor( ChartUIUtil.getExpressionString( tablePreview.getColumnHeading( i ) ) ) );
		}
	}
	private void switchDataTable( )
	{
		
		Runnable runnable = new Runnable() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.jface.operation.IRunnableWithProgress#run(org.eclipse.core.runtime.IProgressMonitor)
			 */
			public void run( )