On Thu, 2023-07-20 at 15:46 +0200, Jef Mortelle wrote: > So: not possible to have very little downtime if you have a database > with al lot rows containing text as datatype, as pg_upgrade needs 12hr > for 24 milj rows in pg_largeobject. To clarify: "text" is no problem at all. Large objects are. Yours, Laurenz Albe