Kevin Grittner <kgrittn(at)ymail(dot)com> writes:
> Incorrect. Like vacuum and other visibility-related operations,
> long-running transactions in other databases in the same "cluster"
> (in the sense of a group of backends running under a single
> postmaster) will be an issue. I seem to recall that it was
> non-trivial to limit things in general to a single database, but
> perhaps the DEFERRABLE feature could be enhanced to do that without
> too much pain.
How will that work in the case of serialized access to a shared catalog?
regards, tom lane