Nikhil Shetty <nikhil.dba04@gmail.com> writes: > We want to upgrade a postgres v13 database to v16. but the bootstrap user > used to initialise the database for both are different > Can we update the bootstrap user for v13 ? like assign oid as 10 in > pg_authid?
Do not try to change role OIDs --- you will certainly miss some places where the OID appears. You can rename it though.
You might have tried this:
regression=# alter user postgres rename to pgsql; ERROR: session user cannot be renamed
but it's easy to get around that:
regression=# create user joe superuser; CREATE ROLE regression=# \c - joe You are now connected to database "regression" as user "joe". regression=# alter user postgres rename to pgsql; ALTER ROLE regression=# \c - pgsql You are now connected to database "regression" as user "pgsql". regression=# drop user joe; DROP ROLE
