Indeed Certificate Manager data storage is a database. For maintenance of the system creating service account is required.
Open pgAdmin, enter master password and connect to server.
In Browser section right-click on the Login/Group Roles menu item
Choose Create > Login/Group Role….
4. On the General tab in the Name field enter name of the role, for example - servicepg.
5. On the Definition tab enter your password in the Password field. No Expiry must be specified in the Account Expires field.
When you create a service account, you must disable password expiration.
На вкладкеОпределение(Definition), в полеПароль(Password), укажите пароль пользователя. В полеРоль активна до(Account Expires) должно быть указано значениеNo Expiry.