"Andrew Dunstan" <andrew@dunslane.net> writes:
> Tom Lane said:
>> The existing initdb code actually does try to scale them in sync to
>> some extent ---
> Yes, I know. What I meant was that we could try using one phase
> rather than two. But that's only one possible approach.
I think that's a bad idea, mainly because max_connections is constrained
by more things than just SHMMAX. In a scenario where the number of
semaphores constrains max_connections, you'd probably end up failing to
push shared_buffers up as high as it could be.
regards, tom lane
