On Wed, 27 Nov 2019 at 12:33, Konstantin Knizhnik <k.knizh...@postgrespro.ru> wrote:
> Hi hackers, > > I wonder how it is possible to prohibit parallel scan for the external > storage accessed through tableam? > For example if I want to implement specialized tableam for fast access > to temp tables, how can I inform optimizer that > parallel scan is not possible (because table data is local to the backend)? > > How about setting parallel_setup_cost to disable_cost in costsize.c for your specific scan method. -- Regards, Rafia Sabih
