PostgreSQL 8.2.5 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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43.42. pg_roles

43.42. `pg_roles`