optimizing pg_upgrade's once-in-each-database steps

2024-09-16 21:16:23 Nathan Bossart (bossartn) Closed in commitfest 2024-09 with status: Committed 2024-08-29 14:29:03 Nathan Bossart (bossartn) Added bossartn as committer 2024-08-29 14:28:59 Nathan Bossart (bossartn) New status: Ready for Committer 2024-08-04 00:36:24 Ilya Gladyshev (qoops) Added qoops as reviewer 2024-08-01 06:23:56 Corey Huinker (coreyh) Closed in commitfest 2024-07 with status: Moved to next CF 2024-05-16 21:18:34 Nathan Bossart (bossartn) Changed authors to Nathan Bossart (bossartn) 2024-05-16 21:18:34 Nathan Bossart (bossartn) Changed targetversion to 18 2024-05-16 21:18:29 Nathan Bossart (bossartn) Attached mail thread 20240516211638.GA1688936@nathanxps13 2024-05-16 21:18:29 Nathan Bossart (bossartn) Created patch record