Bug 131011 Support running query based on report document data
Data Engine should support running a query based on data set and expression data stored in a report document. This bugzilla entry serves as a repository for design docs and notes related to this feature.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/transform/group/GroupUtil.java
{
	final static int rowidIndex = 0;
	final static String rowidName = JSRowObject.ROW_POSITION;
	/**
	 * No instance
	 */
	private GroupUtil()
	{		
	}
	
	/**