Answers for "postgres create db as different user"

create db user postgres

sudo -u postgres psql
postgres=# create database mydb;
postgres=# create user myuser with encrypted password 'mypass';
postgres=# grant all privileges on database mydb to myuser;

how to create a new user in postgresql

CREATE DATABASE yourdbname;CREATE USER youruser WITH ENCRYPTED PASSWORD 'yourpass';GRANT ALL PRIVILEGES ON DATABASE yourdbname TO youruser;