Re: Clarification on Role Access Rights to Table Indexes

On Wed, 2025-10-08 at 20:06 -0700, Jeff Davis wrote:
> On Wed, 2025-09-24 at 11:52 -0500, Nathan Bossart wrote:
> > On Wed, Sep 24, 2025 at 12:13:34PM -0400, Tom Lane wrote:
> > > Nathan Bossart <nathandbossart@gmail.com> writes:
> > > > * RangeVarCallbackForReindexIndex() was checking privileges on
> > > > the table
> > > > before locking it, so I reversed it in 0002.
> > >
> > > Don't we do that intentionally, to make sure someone can't cause
> > > DOS
> > > on a table they have no privileges on?
> >
> > Ah, right.  I switched it back in v4.
>
> v4-0001 looks good to me.

Actually, now I'm unsure. v4-0001 is taking a lock on the table before
checking privileges, whereas v4-0002 is going to some effort to avoid
that. Is that because the latter is taking a ShareLock?

Regards,
    Jeff Davis