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 1. pg_catalog.pg_roles

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
rolcanlogin	bool		Role may log in. That is, this role can be given as the initial session authorization identifier
rolreplication	bool		User can initiate streaming replication and put the system in and out of backup mode
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
rolbypassrls	bool		User bypasses every row-level security policy
rolconfig	text[]		Session defaults for run-time configuration variables
rolresqueue	oid		resqueue oid of the user
oid	oid	pg_authid.oid	ID of role
rolcreaterextgpfd	bool		Privilege to create read external tables with the gpfdist or gpfdists protocol
rolcreaterexthttp	bool		Privilege to create read external tables with the http protocol
rolcreatewextgpfd	bool		Privilege to create write external tables with the gpfdist or gpfdists protocol
rolresgroup	oid		Object ID of the associated resource group ID in pg_resgroup