PG_SHADOW

PG_SHADOW displays properties of all roles that are marked as rolcanlogin in PG_AUTHID.

The name stems from the fact that this view should not be readable by the public since it contains passwords. PG_USER is a publicly readable view on PG_SHADOW that blanks out the password column.

Table 1 PG_SHADOW columns

Name	Type	Reference	Description
usename	name	PG_AUTHID.rolname	Username
usesysid	oid	PG_AUTHID.oid	ID of this user
usecreatedb	Boolean	-	Indicates that the user can create databases.
usesuper	Boolean	-	Indicates that the user is an administrator.
usecatupd	Boolean	-	Users can update a view. Even the system administrator cannot do this unless this column is true.
userepl	Boolean	-	User can initiate streaming replication and put the system in and out of backup mode.
passwd	text	-	Password (possibly encrypted); null if none. See PG_AUTHID for details about how encrypted passwords are stored.
valbegin	timestamp with time zone	-	Account validity period start time (null if no start time)
valuntil	timestamp with time zone	-	Password expiry time (null if no expiration)
respool	name	-	Resource pool used by the user
parent	oid	-	Parent resource pool
spacelimit	text	-	Storage space of the permanent table
tempspacelimit	text	-	Storage space of the temporary table
spillspacelimit	text	-	Operator disk flushing space