PostgreSQL 13 ユーザ(ロール)のパスワード変更
psql --user myuser postgres ALTER ROLE myuser WITH PASSWORD 'new_password'; https://www.postgresql.jp/document/13/html/sql-alterrole.html https://www.postgresql.org/docs/13/sql-alterrole.html https://stackoverflow.com/questions/12720967/how-to-change-postgresql-user-password