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
PreparedQuery.Executor.class.getName( ),
							"close",
							e.getMessage( ),
							e );
			}
		    dataSet = null;
			dataSource = null;
		    
			logger.logp( Level.FINER,
					PreparedQuery.Executor.class.getName( ),
					"close",
					"executor closed " );
		}
		
		/**
		 * Open the required DataSource. This method should be called after
		 * "dataSource" is initialized by findDataSource() method.
		 * 
		 * @throws DataException
		 */
		protected void openDataSource( ) throws DataException
		{
			assert odiDataSource == null;
			
			
		    
			if ( dataSource != null  )
			{
				
				if ( !dataSource.isOpen( )