PG Bug reporting form <noreply(at)postgresql(dot)org> writes:
> example: pg_stat_replication.sent_location was renamed to
> pg_stat_replication.sent_lsn in v10.
Yeah, that's a documented compatibility issue, per the v10 notes:
* Rename WAL-related functions and views to use lsn instead of location
(David Rowley)
> If a view in 9.6 refers to
> pg_stat_replication.sent_location, pg_upgrade fails entirely because "column
> pg_stat_replication.sent_location does not exist"
It is not pg_upgrade's job to fix such things. Sorry.
regards, tom lane