There are some operators who enters data in my database with just one
> table. Others tables are updated by triggers, these tables contains
> result of calculation. How to do to hide these tables because I do not
> want that operators read them ? On help documentation it is said that I
> can not block SELECT privilege because it is required for UPDATE.
>
Can you move them to a different schema, and manage using search_path?
Regards,
Jayadevan