Bug 200885 Invalid group key column name: _{$TEMP_GROUP_1$} occurs when preview attached report[1102]
Description: Open the attached report design and preview. Actual result: Exception occurs: Invalid group key column name: _{$TEMP_GROUP_1$}_Invalid group key column name: _{$TEMP_GROUP_1$}_ ( 2 time(s) ) detail : org.eclipse.birt.report.data.adapter.api.AdapterException: Invalid group key column name: _{$TEMP_GROUP_1$}_Invalid group key column name: _{$TEMP_GROUP_1$}_ at org.eclipse.birt.report.data.adapter.impl.DataRequestSessionImpl.prepare(DataRequestSessionImpl.java:476) at org.eclipse.birt.report.engine.data.dte.DteDataEngine.doPrepareQuery(DteDataEngine.java:100) at org.eclipse.birt.report.engine.data.dte.AbstractDataEngine.prepare(AbstractDataEngine.java:138) at org.eclipse.birt.report.engine.executor.ReportExecutor.execute(ReportExecutor.java:94) at org.eclipse.birt.report.engine.internal.executor.wrap.WrappedReportExecutor.execute(WrappedReportExecutor.java:59) at org.eclipse.birt.report.engine.internal.executor.dup.SuppressDuplciateReportExecutor.execute(SuppressDuplciateReportExecutor.java:50) at org.eclipse.birt.report.engine.internal.executor.wrap.WrappedReportExecutor.execute(WrappedReportExecutor.java:59) at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.doRun(RunAndRenderTask.java:138) at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:68) at org.eclipse.birt.report.service.ReportEngineService.runAndRenderReport(Unknown Source) at org.eclipse.birt.report.service.ReportEngineService.runAndRenderReport(Unknown Source) at org.eclipse.birt.report.service.BirtViewerReportService.runAndRenderReport(Unknown Source) at org.eclipse.birt.report.service.actionhandler.BirtGetPageAllActionHandler.__execute(Unknown Source) at org.eclipse.birt.report.service.actionhandler.AbstractBaseActionHandler.execute(Unknown Source)
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/api/DataSetCacheTest.java
rowBeArray = getRowExpr( );
		totalBeArray = getAggrExpr( );
		prepareExprNameAndQuery( rowBeArray, totalBeArray, qd );
		
		IQueryResults qr = myDataEngine.prepare( qd, appContextMap )
				.execute( null );
		assertTrue( qr.getResultMetaData( ) != null );
		return qr.getResultIterator( );
	}
	
	
	private DataEngineImpl myDataEngine;
	
	/**
	 * @throws Exception
	 */
	public void testJointDataSetCache( ) throws Exception
	{
		QueryDefinition queryDefn = prepareForJointDataSet( );
		prepareExprNameAndQuery( rowBeArray, totalBeArray, queryDefn );
		IPreparedQuery preparedQuery = myDataEngine.prepare( queryDefn );
		IQueryResults qr = preparedQuery.execute( null );
		IResultIterator ri = qr.getResultIterator( );
		while ( ri.next( ) )
		{
			String s = "";
			for ( int i = 0; i < rowBeArray.length; i++ )
			{
				s += ri.getValue( rowBeNames[i] );