List of roles Role name | Attributes | Password? | Valid until | Connection limit
-----------+-------------+-----------+------------------------+------------------ admin | INHERIT | no | | -1 alice | SUPERUSER +| yes | infinity | 5
I think I'm in the minority on believing that these describe outputs should not be beholden to internal implementation details. But seeing a -1 in the limit column is just jarring to my sensibilities. I suggest displaying blank (not null, \pset should not influence this) if the connection limit is "no limit", only showing positive numbers when there is meaningful exceptional information for the user to absorb.
