>Unique keys really don't have much to do with unique records. They really mean that only one key will be stored in the
>index, but multiple records may have the same key. What you want is a candidate index.
>
>Whoops, candidate indexes are not available for free tables, only tables in a DBC.

Whoops again. :-)

CREATE TABLE fred (iKey i)
INDEX ON ikey TAG ikey CANDIDATE 
APPEND BLANK
APPEND BLANK