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/impl/dimension/Hierarchy.java
{
		documentObj = createHierarchyDocumentObject( );
		offsetDocObj = createLevelOffsetDocumentObject( );
		
		DiskSortedStack sortedDimensionSet = getSortedDimRows( datasetIterator,
				levelDefs );
				
		documentObj.seek( 4 );
		saveHierarchyMetadata( datasetIterator,
				levelDefs );
		
		int[][] keyDataType = new int[levelDefs.length][];
		int[][] attributesDataType = new int[levelDefs.length][];
		for ( int i = 0; i < levelDefs.length; i++ )
		{
			keyDataType[i] = new int[levelDefs[i].getKeyColumns( ).length];
			for ( int j = 0; j < levelDefs[i].getKeyColumns( ).length; j++ )
			{
				keyDataType[i][j] = datasetIterator.getFieldType( levelDefs[i].getKeyColumns( )[j] );
			}
			if ( levelDefs[i].getAttributeColumns( ) != null )
			{
				attributesDataType[i] = new int[levelDefs[i].getAttributeColumns( ).length];
				for ( int j = 0; j < levelDefs[i].getAttributeColumns( ).length; j++ )
				{
					attributesDataType[i][j] = datasetIterator.getFieldType( levelDefs[i].getAttributeColumns( )[j] );
				}
			}
		}