Re: ALTER SYSTEM vs symlink

On Mon, Nov 2, 2015 at 3:41 PM, Stephen Frost <sfrost@snowman.net> wrote:
>> Two different methods of restricting ALTER SYSTEM have already been
>> discussed on this thread: one using file permissions, and the other
>> using ProcessUtility_hook.  I personally think that's good enough.
>
> The issue which I have with these suggestions is that one requires users
> to install an as-yet-unwritten module and the other is to hack with
> permissions in the data directory.  As we've all seen, people playing in
> $PGDATA is generally a bad idea.

Well, fair enough.  I think somebody could write that module in about
an hour, though.  All you have to do is latch onto ProcessUtility_hook
and throw an error if you've got yourself an AlterSystemStmt.

-- 
Robert Haas
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