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
for ( int i = 0; i < numberOfLevel - 1; i++ )
		{
			for ( int j = 0; j < validNodeList.size( ); j++ )
			{
				processNonLeafNode( (NodeSelection) validNodeList.get( j ),
						selections,
						validSonNode );
			}
			if ( validSonNode.size( ) <= 0 )
			{
				return null;
			}
			BufferedStructureArray tempList = validNodeList;
			validNodeList = validSonNode;
			validSonNode = tempList;
			validSonNode.clear( );
		}
		
		BufferedStructureArray resultList = new BufferedStructureArray( IndexKey.getCreator( ),
				Math.min( keyCount, Constants.MAX_LIST_BUFFER_SIZE ) );
		for ( int i = 0; i < validNodeList.size( ); i++ )
		{
			currentNode = ( (NodeSelection) validNodeList.get( i ) ).node;
			boolean[] selectionMark = ( (NodeSelection) validNodeList.get( i ) ).selectionMark;
			documentObject.seek( currentNode.offset );
			for ( int j = 0; j < currentNode.numberOfSon; j++ )
			{
				IndexKey indexKey = readKeyObject( );
				for ( int k = 0; k < selectionMark.length; k++ )
				{