Migrating from Postgres 9.5 to 9.6.2
These instructions are for those that have recently run
brew upgrade, resulting in the upgrade of PostgreSQL 9.5 to 9.6.2.
These instructions are based on the pg_upgrade documentation.
If you check your log file like so, and see the following errors, a scripted solution is below.
$ tail -F /usr/local/var/log/postgres.log