On Tue, 21 May 2019 at 14:04, Walter Smith <walter@xxxxxxxxxxxx> wrote: > I'm so sorry -- I meant to give the version, of course. It's 9.6.13. https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=3ca930fc3 has been applied since then. It would be good if you could confirm the problem is resolved after a vacuum. Maybe run VACUUM VERBOSE on the table and double check there's not some large amount of tuples that are "nonremovable". -- David Rowley http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services