On Wednesday 17 June 2009 17:15:04 Tom Lane wrote:
> Peter Eisentraut <pete...@gmx.net> writes:
> > I think you should design this with a bit wider scope.  Instead of just
> > "all tables in this schema", think "all tables satisfying some
> > condition".  It has been requested, for example, to be able to grant on
> > all tables that match a pattern.
> I'm against that.  Functionality of that sort is available now if you
> really need it (write a plpgsql loop around an EXECUTE) and it's fairly
> hard to see a clean syntax that is significantly more general than
> "GRANT ON schema.*".  In particular I strongly advise against getting
> into supporting user-defined predicates in GRANT.  There are good
> reasons for not having utility statements evaluate random expressions.

Why don't we tell people to write a plpgsql loop for the schema.* case as 

I haven't seen any evidence that the schema.* case is more common than other 
bulk DDL cases like "matches pattern" or "owned by $user" or "grant on all 
functions that are not security definer" etc.

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