Удалить Postgres Brew
$ brew uninstall postgres
$ rm -rf /usr/local/var/postgres
$ rm /usr/local/var/log/postgres.log
$ rm -f ~/.psqlrc ~/.psql_history
Prickly Polecat
$ brew uninstall postgres
$ rm -rf /usr/local/var/postgres
$ rm /usr/local/var/log/postgres.log
$ rm -f ~/.psqlrc ~/.psql_history
/Library/PostgreSQL/10
open uninstall-postgres.app