Teach VACUUM to disregard long running transactions when determining XID cutoff for freezing

When Who What
2022-08-31 18:50:46 Peter Geoghegan (pgeoghegan) Closed in commitfest 2022-09 with status: Committed
2022-08-31 18:50:46 Peter Geoghegan (pgeoghegan) Changed committer to pgeoghegan
2022-08-28 23:20:55 Nathan Bossart (bossartn) Added bossartn as reviewer
2022-08-06 18:26:45 Peter Geoghegan (pgeoghegan) Changed authors to Peter Geoghegan (pgeoghegan)
2022-08-06 18:26:34 Peter Geoghegan (pgeoghegan) Attached mail thread CAH2-Wzn2hODG0KQNvtFsT-Ka=MrUNHRpQXZ8tRiiC-fudQ_kEw@mail.gmail.com
2022-08-06 18:26:34 Peter Geoghegan (pgeoghegan) Created patch record