How to find user name and password for PostgresSQL on mac?

Question

How to find user name and password for PostgresSQL on mac? I did not remember that I have set a password and username. How to find the default username and password on mac?

Answer 1

To log in without a password:

sudo -u postgres psql postgres

To know the username

\du

To reset the password:

ALTER USER user_name WITH PASSWORD 'new_password';

replace user_name with your username you found by \du command