Supplemental indexes
Supplemental indexes provide an alternate sort order for accessing S3 Classic tables. They enhance performance for access to business classes that implement S3ClassicTable yet do not have an existing SQL index with the needed sort order.
Without the supplemental indexes, the sorting activity can slow response times. For more information review the information on implementing supplemental indexes in the S3 Supply Chain Management Applications, built with Landmark Installation Guide or review the Lawson Landmark Technology Data Access Guide.