Hello
> Try this:
> alter system set max_parallel_workers = 20;
> and restart the system.
> max_parallel_workers is still 8
Hmm, I got 20 on my local 11.5 and on HEAD.
> which should certainly not happen for a PGC_POSTMASTER parameter.
But max_parallel_workers is PGC_USERSET and this behavior seems be documented:
> Also, note that a setting for this value which is higher than max_worker_processes will have no effect, since
parallelworkers are taken from the pool of worker processes established by that setting.
regards, Sergei