After a "brew upgrade", I had to solve the incompatible data format between versions.
cd /usr/local/var/postgres/ cat PG_VERSION export LC_CTYPE="UTF-8" mv postgres postgres9.3 initdb postgres -E Unicode pg_upgrade -d postgres9.3 -D postgres -b /usr/local/Cellar/postgresql/9.3.5_1/bin/ -B /usr/local/Cellar/postgresql/9.4.0/bin/ -v
The "tables_using_reg.txt" problem:
/usr/local/Cellar/postgresql/9.3.5_1/bin/pg_ctl -D /usr/local/var/postgres9.3 -l /usr/local/var/postgres9.3/server.log start -w dropdb rnovo /usr/local/Cellar/postgresql/9.3.5_1/bin/pg_ctl -D /usr/local/var/postgres9.3 -l /usr/local/var/postgres9.3/server.log stop -w