a2996478c3
Commit 9a974cbcba005256a19991203583a94b4f9a21a9 did this for user tables, but pg_upgrade treats pg_largeobject as a user table, and so needs the same treatment. Without this fix, if you rewrite the pg_largeobject table and then perform an upgrade with pg_upgrade, the table will apparently be empty on the new cluster, while all of your objects will end up with an orphaned file. With this fix, instead of the old cluster's pg_largeobject files ending up orphaned, the original files fro the new cluster do. That's mostly harmless because we expect the table to be empty, but we might want to arrange to remove the as part of the upgrade. Since we're still debating the best way of doing that, I (rhaas) have decided to postpone dealing with that problem and get the basic fix committed. Justin Pryzby, reviewed by Shruthi Gowda and by me. Discussion: http://postgr.es/m/20220701231413.GI13040@telsasoft.com
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