On 2016-08-31 11:23:27 -0400, Tom Lane wrote:
> Another issue is what is the low-level interlock between nextvals
> in different processes. Right now it's the buffer lock on the
> sequence's page. With a scheme like this, if we just kept doing
> that, we'd have a single lock covering probably O(100) different
> sequences which might lead to contention problems. We could probably
> improve on that with some thought.
I was thinking of forcing the rows to be spread to exactly one page per
sequence...
Andres