Bug 182296 Crosstab - non-numeric measures
Feature request. Looking at the 2.2.M6 release, it seems that measures (the fields that can be in the matrix part of the output) need to be numeric. I looked at the spec documents and it seems there is no requirement for non-numeric measures
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/data/util/DiskIndex.java
isSorted );
		return indexTree;
	}
	/**
	 * 
	 * @param name
	 * @param sortedStack
	 * @return
	 * @throws IOException
	 * @throws DataException 
	 */
	public static DiskIndex createIndex( IDocumentManager documentManager,
			String name, IDiskArray keyList, boolean isSorted )
			throws IOException, DataException
	{
		return createIndex( documentManager, name, 3, keyList, isSorted );
	}
	/**
	 * 
	 * @param name
	 * @param sortedStack
	 * @return
	 * @throws IOException
	 * @throws DataException 
	 */
	public static DiskIndex loadIndex( IDocumentManager documentManager,
			String name ) throws IOException, DataException
	{
		return new DiskIndex( documentManager, name );
	}