Bug 136246 [regression]Export data exported error column name.
Description: Export data exported error column name. Steps to reproduce: 1. export data in a table, select several columns. Expected result: Selected column name and data are exported. Actual result: No matter what columns you selected, exported columns name always display columns beginning from the first, and then the second, and so on.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
fault.setFaultString( e.getLocalizedMessage( ) );
			throw fault;
		}
		catch ( Exception e )
		{
			AxisFault fault = new AxisFault( );
			fault.setFaultCode( new QName(
					"ReportEngineService.renderReport( )" ) ); 
			fault.setFaultString( e.getLocalizedMessage( ) );
			throw fault;
		}
		finally
		{
			renderTask.close( );
		}
		return out;
	}
	/**
	 * Get query result sets.
	 * 
	 * @param document
	 * @return
	 * @throws RemoteException
	 */
	public ResultSet[] getResultSets( IReportDocument document )
			throws RemoteException
	{
		assert document != null;
		ResultSet[] resultSetArray = null;
		IDataExtractionTask dataTask = null;