Fabio,
I tried Your suggestion I have a question :o)))))

SELECT Hon
INDEX ON DTOS(DataVed)+BINTOC(Lev1)+BINTOC(Lev2)+BINTOC(Lev3) TAG HonVed
m2 = DATE(2004,12,2)
SYS(3054,11)
SELECT hon.egn, dataved, lev1, lev2, lev3  FROM hon WHERE DTOS(DataVed)+BINTOC(lev1)+BINTOC(lev2)+BINTOC(lev3) LIKE DTOS(m2)+BINTOC(3)+BINTOC(334)+BINTOC(1) NOFILTER
** Here what SYS(3054) display
Using index tag Honvedom to rushmore optimize table hon
Rushmore optimization level for table hon: partial
Rushmore optimization level for table homo: none
Joining table hon and table homo using index tag Homo_egn

My question is WHY Rushmore optimization level for table hon: partial Partial?

TIA