ANL6020I *** NOTE: THIS INDEX IS PRESENTLY DESIGNATED AS ALLOWING DUPLICATE VALUES. MAKE SURE THIS IS A NONUNIQUE INDEX THAT DOES NOT FALL INTO ONE OF THE FOLLOWING UNIQUE CATEGORIES: EXPLICITLY UNIQUE, PRIMARY KEY, NONPRIMARY RI PARENT KEY, UNIQUE WHERE NOT NULL, UNIQUE COLUMN CONSTRAINT. UNIQUE INDEXES HAVE DEFINITE ADVANTAGES WHERE EVER THEY CAN BE DECLARED BY THE USER, SO BE SURE IT CONTAINS DUPLICATES.