On Sat, Feb 13, 2016 at 7:29 AM, Kouhei Kaigai <kai...@ak.jp.nec.com> wrote: >> I suppose there's no theoretical reason why the buffer couldn't go >> from all-visible to not-all-visible and back to all-visible again all >> during the time you are copying it. >> > The backend process that is copying the data to GPU has a transaction > in-progress (= not committed). Is it possible to get the updated buffer > page back to the all-visible state again? > I expect that in-progress transactions works as a blocker for backing > to all-visible. Right?
Yeah, probably. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers