On Thu, Aug 17, 2023 at 3:51 PM Frédéric Yhuel <frederic.yh...@dalibo.com> wrote:
> On 8/17/23 14:00, Frédéric Yhuel wrote: > > On 8/17/23 09:32, Frédéric Yhuel wrote: > >> On 8/10/23 17:06, Juan José Santamaría Flecha wrote: > >>> Recently I restored a database from a directory format backup and > >>> having this feature would have been quite useful > >> > >> Thanks for resuming work on this patch. I forgot to mention this in my > >> original email, but the motivation was also to speed up the restore > >> process. Parallelizing the FK checks could make a huge difference in > >> certain cases. We should probably provide such a test case (with perf > >> numbers), and maybe this is it what Robert asked for. > > > > I have attached two scripts which demonstrate the following problems: > Thanks for the scripts, but I think Robert's concerns come from the safety, and not the performance, of the parallel operation. Proving its vulnerability could be easy with a counter example, but assuring its safety is trickier. What test would suffice to do that? Regards, Juan José Santamaría Flecha
