After you've run pg_upgrade, you have to loop through all your databases and do an "ALTER EXTENSION abc UPDATE" once for each extension.
Is there a reason we shouldn't have pg_upgrade emit a script that does this, similar to how it emits a script to run ANALYZE? -- Magnus Hagander Me: https://www.hagander.net/ <http://www.hagander.net/> Work: https://www.redpill-linpro.com/ <http://www.redpill-linpro.com/>