pg_roles

PostgreSQL 8.2.6 Documentation
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# 43.42. `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.

This view explicitly exposes the OID column of the underlying table, since that is needed to do joins to other catalogs.

Table 43-42. `pg_roles` Columns

Name | Type | References | Description
--- | --- | --- | ---
`rolname` | `name` |  | Role name
`rolsuper` | `bool` |  | Role has superuser privileges
`rolinherit` | `bool` |  | Role automatically inherits privileges of roles it is a member of
`rolcreaterole` | `bool` |  | Role may create more roles
`rolcreatedb` | `bool` |  | Role may create databases
`rolcatupdate` | `bool` |  | Role may update system catalogs directly. (Even a superuser may not do this unless this column is true.)
`rolcanlogin` | `bool` |  | Role may log in. That is, this role can be given as the initial session authorization identifier
`rolconnlimit` | `int4` |  | For roles that can log in, this sets maximum number of concurrent connections this role can make. -1 means no limit
`rolpassword` | `text` |  | Not the password (always reads as `********`)
`rolvaliduntil` | `timestamptz` |  | Password expiry time (only used for password authentication); NULL if no expiration
`rolconfig` | `text[]` |  | Session defaults for run-time configuration variables
`oid` | `oid` | ``pg_authid`.oid` | ID of role

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