Re: Horribly slow pg_upgrade performance with many Large Objects

Committed.

I'm cautiously optimistic that we can find some better gains for upgrades
from v16 and newer.  That would involve dumping lo_create() commands for
all LOs with comments/seclabels, dumping the relevant pg_shdepend rows, and
then copying/linking the pg_largeobject_metadata files like we did prior to
v12.

-- 
nathan