Bug 142462 Cannot create bindings for data set output parameters
Define a JDBC Stored Procedure data set with at least one data set output parameter. Bind this data set to a table. Edit data binding for the table and add a new binding. In the expression builder, under "Available Data Sets", only the columns for the data set are shown as available. The output parameters are not shown. This is a regression against 2.0. This bug makes data set parameters unusable.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/util/DataUtil.java
{
			dataSetHandle = DEUtil.getBindingHolder( handle ).getDataSet( );
		}
		if ( dataSetHandle != null )
		{
			List resultSetColumnList = getColumnList( dataSetHandle );
			ArrayList columnList = new ArrayList( );
			String groupType = DEUtil.getGroupControlType( handle );
			List groupList = DEUtil.getGroups( handle );
			for ( Iterator iter = resultSetColumnList.iterator( ); iter.hasNext( ); )
			{
				ResultSetColumnHandle resultSetColumn = (ResultSetColumnHandle) iter.next( );
				ComputedColumn column = StructureFactory.createComputedColumn( );
				column.setName( resultSetColumn.getColumnName( ) );
				column.setDataType( resultSetColumn.getDataType( ) );
				column.setExpression( DEUtil.getExpression( resultSetColumn ) );
				if ( groupType.equals( DEUtil.TYPE_GROUP_GROUP ) )
				{
					column.setAggregrateOn( ( (GroupHandle) groupList.get( 0 ) ).getName( ) );
				}
				columnList.add( column );
			}
			return columnList;
		}
		return Collections.EMPTY_LIST;
	}
	
	/**
	 * Creates a query for the given data set
	 *