Let psql treat each schema update script as a file No more semicolon required at the end of each script and psql meta-commands such as \ir can be used, which is especially useful to avoid duplicating DDL in update scripts.

GRANT INSERT, DELETE, UPDATE ON sys_admin.password_reset_requests TO sys_admin;

ALTER TABLE sys_admin.password_reset_requests
  ADD CONSTRAINT password_reset_requests_username_key UNIQUE(username);