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/src/org/eclipse/birt/data/engine/impl/PreparedJointDataSourceQuery.java
public Collection getParameterMetaData( ) throws BirtException
	{
		return null;
	}
	
	/**
	 * cache the left and right queryResults to improve the efficiency
	 * @throws BirtException 
	 */
	private void populatePreparedQuery( ) throws BirtException
	{
		this.leftQueryResults = populatePreparedQuery( true,
				PreparedJointDataSourceQuery.this.dataSet.getLeftDataSetDesignName( ) );
		this.leftResultMetaData = this.leftQueryResults.getResultMetaData( );
		this.left = (ResultIterator) this.leftQueryResults.getResultIterator( );
		this.rightQueryResults = populatePreparedQuery( false,
				PreparedJointDataSourceQuery.this.dataSet.getRightDataSetDesignName( ) );
		this.rightResultMetaData = this.rightQueryResults.getResultMetaData( );
		this.right = (ResultIterator) this.rightQueryResults.getResultIterator( );
	}
	/**
	 * 
	 * @param isLeftDataSet
	 * @param dataSetName
	 * @return
	 * @throws DataException
	 */
	private IQueryResults populatePreparedQuery( boolean isLeftDataSet, String dataSetName ) throws DataException
	{
		List conditions = PreparedJointDataSourceQuery.this.dataSet.getJoinConditions( );