51.81. pg_roles
 The view pg_roles provides access to information about database roles. This is simply a publicly readable view of pg_authid that blanks out the password field. 
Table 51.82. pg_roles Columns
| Column Type Description | 
|---|
| 
 Role name | 
| 
 Role has superuser privileges | 
| 
 Role automatically inherits privileges of roles it is a member of | 
| 
 Role can create more roles | 
| 
 Role can create databases | 
| 
 Role can log in. That is, this role can be given as the initial session authorization identifier | 
| 
 Role is a replication role. A replication role can initiate replication connections and create and drop replication slots. | 
| 
 For roles that can log in, this sets maximum number of concurrent connections this role can make. -1 means no limit. | 
| 
  Not the password (always reads as  | 
| 
 Password expiry time (only used for password authentication); null if no expiration | 
| 
 Role bypasses every row level security policy, see Section 5.8 for more information. | 
| 
 Role-specific defaults for run-time configuration variables | 
| 
 ID of role |