Sometimes, it's useful to log queries during development in Postgres. Assuming you installed Postgres using
brew install postgresql, here's how you configure logging.
/usr/local/var/postgres/postgresql.conf in your favorite editor and add these lines:
logging_collector = on log_directory = 'pg_log' log_statement = 'all'
Restart Postgres, and run
tail -f /usr/local/var/postgres/pg_log to see queries.
Note that logging may take a few moments to start up.