The following query shows which fallback AMPs contain the rows of a table.
sel col1, hashbakamp(hashbucket(hashrow(col1))
map = map1count3 colocate using u1_tabm1c3)
(named "which amp?")
from u1.tabm1c3 order by 1;
col1 which amp?
----------- -----------
0 2
1 3
2 2
3 3
4 3
5 3
6 2
7 3
8 2
9 0