1DrapeLineExceptions - invalid BLOB geom1 2:memory: #use in-memory database 3SELECT AsText(ST_DrapeLineExceptions(zeroblob(10), GeomFromText('LINESTRING Z(0 0 0, 1 1 1, 5 1 2)'))); 41 # rows (not including the header row) 51 # columns 6AsText(ST_DrapeLineExceptions(zeroblob(10), GeomFromText('LINESTRING Z(0 0 0, 1 1 1, 5 1 2)'))) 7(NULL) 8