Bug 189363 The aggregation of table should be start with sigma symbol
Description: Follow the spec, after specify a aggregation on a table, the aggregation should be represented by starting with the sigma symbol
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/editors/action/AddSubTotalAction.java
transEnd( );
	}
	private List copySubTotal( List list )
	{
		List retValue = new ArrayList( );
		for ( int i = 0; i < list.size( ); i++ )
		{
			retValue.add( ( (SubTotalInfo) ( list.get( i ) ) ).copy( ) );
		}
		return retValue;
	}
	private List copyGrandTotal( List list )
	{
		List retValue = new ArrayList( );
		for ( int i = 0; i < list.size( ); i++ )
		{
			retValue.add( ( (GrandTotalInfo) ( list.get( i ) ) ).copy( ) );
		}
		return retValue;
	}
	private void processGrandTotal( List ori, List newList )
			throws SemanticException
	{
		GrandOpration oriOperation = new GrandOpration( );
		GrandOpration newOperation = new GrandOpration( );
		for ( int i = 0; i < ori.size( ); i++ )
		{
			GrandTotalInfo oriInfo = (GrandTotalInfo) ori.get( i );
			GrandTotalInfo newInfo = (GrandTotalInfo) newList.get( i );
			oriOperation.addInfo( oriInfo );