>Fabio,
>
>Comment: Why would someone, besides you, actually think it was useful to build an index on a table that had no dependence on any of the data in the table?
>

A simple example for you:

* fill a table/cursor
* Now you want a random uniform scan:
INDEX RAND() TAG T_RAND
SET ORDER TO T_RAND
SCAN
...
ENDSCAN
* repeatable! regardless from the UPDATE/REPLACE operations
* none update overload!
* none field used!
REPLICATE ALL .....
* next scan is the same of previous scan
SET ORDER TO T_RAND
SCAN
...
ENDSCAN
* with a simple way for change the order!
REINDEX

With DATE()/DATETIME() is possible do more complex operations.