Bug 129144 Support suppressDuplicates property on table row in report engine
See 129143 for detail. This only needs to be supported for data item in a detail row of a table.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutorManager.java
{
	/**
	 * item executor type
	 */
	public static final int GRIDITEM = 0;
	public static final int IMAGEITEM = 1;
	public static final int LABELITEM = 2;
	public static final int LISTITEM = 3;
	public static final int TABLEITEM = 4;
	public static final int MULTILINEITEM = 5;
	public static final int TEXTITEM = 6;