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
return dataSet;
		} 
		
		/**
		 * Gets the Javascript scope for evaluating expressions for this query
		 * 
		 * @return
		 */
		public Scriptable getQueryScope()
		{
			if ( queryScope == null )
			{
				 
				
				
				
				queryScope = getDataEngine().newSubScope( parentScope );
				queryScope.setPrototype( dataSet.getJSDataSetObject() );
			}
			return queryScope;
		}
		
		/**
		 * Prepare Executor so that it is ready to execute the query
		 * 
		 * @param outerRts
		 * @param targetScope
		 * @throws DataException
		 */
		private void prepareExecution( IQueryResults outerRts, Scriptable targetScope ) throws DataException