pg user

• PostgreSQL: https://www.postgresql.org/docs/9.3/view-pg-user.html
• Amazon RedShift

select * from pg_user;

CREATE USER adminuser CREATEUSER PASSWORD '1234Admin';

See also

• Amazon Redshift, aws redshift, Amazon Redshift query editor, GRANT, AQUA, has schema privilege, WLM, Amazon Redshift Spectrum, metrics, VACUUM, SET