On 2018-06-21 14:40:58 +0900, Michael Paquier wrote: > On Wed, Jun 20, 2018 at 08:43:11PM -0700, Andres Freund wrote: > > On 2018-06-18 11:13:47 -0700, Andres Freund wrote: > >> We could do that - but add_to_unowned_list() is actually a bottleneck in > >> other places during recovery too. We pretty much never (outside of > >> dropping relations / databases) close opened relations during recovery - > >> which is obviously problematic since nearly all of the entries are > >> unowned. I've come to the conclusion that we should have a global > >> variable that just disables adding anything to the global lists. > > > > On second thought: I think we should your approach in the back branches, > > and something like I'm suggesting in master once open. > > +1. Let's also make sure that the removal of smgrdounlink and > smgrdounlinkfork happens only on master.
FWIW, I'd just skip removing them. They seem useful functionality and don't hurt. I don't see the point in mucking around with them. Greetings, Andres Freund