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/QueryExecutor.java
for ( int i = 0; it.hasNext( ); i++ )
			{
				ISortDefinition src = (ISortDefinition) it.next( );
				int sortIndex = -1;
				String sortKey = src.getColumn( );
				if ( sortKey == null )
					sortKey = src.getExpression( ).getText( );
				else
				{
					sortKey = getColumnRefExpression( sortKey );
				}
				temporaryComputedColumns.add( new ComputedColumn( "_{$TEMP_SORT_"
						+ i + "$}_",
						sortKey,
						DataType.ANY_TYPE ) );
				sortIndex = -1;
				sortKey = String.valueOf( "_{$TEMP_SORT_" + i + "$}_" );
				IQuery.SortSpec dest = new IQuery.SortSpec( sortIndex,
						sortKey,
						src.getSortDirection( ) == ISortDefinition.SORT_ASC );
				sortSpecs[i] = dest;
			}
			odiQuery.setOrdering( Arrays.asList( sortSpecs ) );
		}
	}
	
	/**
	 * 
	 * @param cx
	 * @throws DataException