> On 30 Mar 2023, at 22:29, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Daniel Gustafsson <daniel@yesql.se> writes:
>>> On 30 Mar 2023, at 20:44, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>> Another idea could be for pg_regress to enforce that "select count(*)
>>> from pg_roles" gives the same answer before and after the test run.
>
>> That wouldn't prevent the contents of pg_roles to have changed though, so there
>> is a (slim) false positive risk with that no?
>
> Well, we could do "select rolname from pg_roles order by 1" and
> actually compare the results of the two selects. That might be
> advisable anyway, in order to produce a complaint with useful
> detail when there is something wrong.
I can see the value in doing something like this to keep us honest.
--
Daniel Gustafsson
