Re: pgsql: Harden new test case against force_parallel_mode = regress.

[Tom Lane]

I wrote:
> The workers were failing at startup, eg (from [1]):

argh, forgot to add the link:

[1] 
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=hippopotamus&dt=2023-03-02%2022%3A31%3A17

                        regards, tom lane