On Fri, 2002-04-19 at 01:10, Tom Lane wrote:
> Peter Eisentraut <peter_e@gmx.net> writes:
>
> >> Another thing that would be needed to prevent users from creating new
> >> tables is to prevent them from creating schemas for themselves. I am not
> >> sure how to handle that --- should the right to create schemas be treated
> >> as a user property (a column of pg_shadow), or should it be attached
> >> somehow to the database (and if the latter, how)?
>
> > An aclitem[] column on pg_database seems like the most flexible solution
> > to me.
>
> Yeah, I was afraid you would say that ;-). I'd prefer to avoid it
> because I think we'd need to have a TOAST table for pg_database then.
> And I'm not at all sure how to setup a shared toast table. Can we get
> away with constraining pg_database rows to 8K if they contain ACL lists?
> (We might get some benefit from compression of the ACL list, but
> probably not a heck of a lot.)
Creating schemas is not the kind of thing people do very frequently.
Why not simply normalise the relationship into another table? the extra
expense of the lookup would be insignificant in the total context of
schema creation.
--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight http://www.lfix.co.uk/oliver
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