totals
1	1	1
2	2	2
3	3	3

0	1	3
rollup
1	1	1
2	2	2
3	3	3
0	1	3
cube
1	1	1
2	2	2
3	3	3
0	1	3
=======
1	1	2	1
2	2	3	1
0	1	3	2