Bug 182680 Use feature of new Aggregation framework of Data Engine.
DataEngine will implement new aggregation framework in 2.2.0RC0. After the implementation is finished Engine should go ahead to use new column bindings in definition of map/highlight.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ExpressionUtil.java
{
	private int retrieveSize;
	private int newIndex;
	private boolean isCandidateKey;
	private boolean omitNextQuote;
	private boolean candidateKey1;
	private boolean candidateKey2;
	ParseIndicator( int retrieveSize, int newIndex, boolean isCandidateKey,
			boolean omitNextQuote, boolean candidateKey1, boolean candidateKey2 )
	{
		this.retrieveSize = retrieveSize;
		this.newIndex = newIndex;
		this.isCandidateKey = isCandidateKey;