On Fri, 2021-10-22 at 17:11 +0900, Abhishek Bhola wrote: > postgres@dxxxpgs03:/Dxxxx1/datadg/data13$ /usr/pgsql-13/bin/pg_upgrade -k --check > --new-datadir='/Dxxxx1/datadg/data13' --old-datadir='/Dxxxx1/datadg/data' > --new-bindir='/usr/pgsql-13/bin' --old-bindir='/usr/pgsql-11/bin' > > *Clusters are compatible* > > But then while performing the actual upgrade, it failed saying the "owner of a FDW should be a super user" > > So I started the old Postgres 11 again, changed the owner of that FDW to a super user. > > Now when I try to run the upgrade (even in check mode) again, it says "new cluster tablespace directory already exists" > > Is it safe to delete the new tablespace directories?
Don't remove the tablespace directories, because they contain the original data from the old cluster. But there should be directories called PG_13_202007201, and you have to remove those.
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