Bug 102511 Enhance Highlighting to support Banding
Using the highlight feature to create a banded report results in a messy report. To recreate, create a simple tabular report. In the designer, select the detail row, go to the Highlights tab on the Property Editor view. Add a new highlight, set its condition to be "row[0] % 2" "Equals" "0". Set the formatting for the highlight to have a gray background color. When the report is previewed, alternating rows have a background color for each cell. The issue is that the backgrounds for the cells are not contiguous, there are spaces between each cell's background, and if a cell has a null value there is no background color. In this situation the highlight should apply to the row, instead it is being applied to each cell. If I manually set the background of a detail row to be gray I get the effect I want.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
/**
		 * a collection of all the queries
		 */
		protected Collection queries;
		
		
		/**
		 * the query stack. The top stores the query that is currently prepared.
		 * Needed because we could have nested queries
		 */
		protected LinkedList queryStack = new LinkedList( );
		/**
		 * the total number of queries created in this report
		 */
		protected int queryCount = 0;
		/**
		 * a collection of the expressions on the CURRENT query
		 */
		protected Collection expressions;
		/**
		 * the expression stack. This is a link list of collections, not a
		 * link-list of individual expressions.
		 */
		protected LinkedList expressionStack = new LinkedList( );
		
		/* report item query stack
		 * 
		 */
		protected LinkedList reportItemQueryStack;
		/**