Bug 123726 "Top n", "Bottom n" in highlight dialog doesn't work.
Description: "Top n", "Bottom n" in highlight dialog doesn't work. Steps to reproduce: 1. Add a highlight for a table. 2. Set highlight rule: "account_id", "top n", "3", let its font color red. 3. Preview the report, it doesn't work. Attached is design file.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedQuery.java
{
	private 	IBaseQueryDefinition 	queryDefn;
	private 	DataEngineImpl	engine;
	private  	AggregateTable	aggrTable;
	private 	Map appContext;
	
	
	protected HashMap subQueryMap = new HashMap();
	
	protected static Logger logger = Logger.getLogger( DataEngineImpl.class.getName( ) );
	/**
	 * @param engine
	 * @param queryDefn
	 * @throws DataException
	 */
	PreparedQuery( DataEngineImpl engine, IBaseQueryDefinition queryDefn )
		throws DataException
	{
		logger.logp( Level.FINE,
				PreparedQuery.class.getName( ),
				"PreparedQuery",
				"PreparedQuery starts up." );
	    assert engine != null && queryDefn != null;
		this.engine = engine;
		this.queryDefn = queryDefn;
		this.aggrTable = new AggregateTable(this);