Hi I have a partitioned table called mytable (a,b,c,d,e,f) partitioned by range on column a. I need to enforce a unique constraint currently the uniqueness is enforced by creating a locally partitioned index on myindx(c,b,a) and this has become a hot block. I was thinking of rebuilding that index and using myindx(a,b,c) can you guys let me know what your thoughts are ? regards