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/document/DocumentObjectUtil.java
{
	/**
	 * 
	 * @param documentObject
	 * @param dataType
	 * @param value
	 * @throws IOException
	 */
	public static void writeValue( IDocumentObject documentObject, int[] dataType, Object[] value ) throws IOException
	{
		for( int i=0;i<dataType.length;i++)
		{
			writeValue( documentObject, dataType[i], value[i] );
		}
	}