1RingsCutAtNodes 2:memory: #use in-memory database 3SELECT AsText(RingsCutAtNodes(GeomFromText('POLYGON((0 0, 0 10, 10 10, 10 0, 0 0))'))) 41 # rows (not including the header row) 51 # columns 6AsText(RingsCutAtNodes(GeomFromText('POLYGON((0 0, 0 10, 10 10, 10 0, 0 0))'))) 7MULTILINESTRING((0 0, 0 10, 10 10, 10 0, 0 0))