Bug 124599 Shortcut delete and menu delete act different in table column.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/TableUtil.java
if (obj instanceof TableEditPart.DummyColumnEditPart
					|| obj instanceof TableEditPart.DummyRowEditPart)
			{
				hasRowOrColumn = true;
				break;
			}
		}
		if (hasRowOrColumn)
		{
			for ( int i = 0; i < size; i++ )
			{
				Object obj = list.get(i);
				if (obj instanceof TableCellEditPart)
				{
					retValue.remove(obj);
				}
			}
		}
		return new StructuredSelection(retValue);
	}
	/**
	 * Get minimum height of row.
	 * 
	 * @param part
	 * @param rowNumber
	 * @return
	 */
	public static int getMinHeight( TableEditPart part, int rowNumber )
	{
		IFigure figure = part.getLayer( LayerConstants.PRIMARY_LAYER );