# 52.87. pg_shadow
The view pg_shadow
exists for backwards compatibility: it emulates a catalog that existed in PostgreSQL before version 8.1. It shows properties of all roles that are marked as rolcanlogin
in pg_authid
.
The name stems from the fact that this table 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 field.
Table 52.88. pg_shadow
Columns
Column Type Description |
---|
usename name (references pg_authid .rolname )User name |
usesysid oid (references pg_authid .oid )ID of this user |
usecreatedb bool User can create databases |
usesuper bool User is a superuser |
userepl bool User can initiate streaming replication and put the system in and out of backup mode. |
usebypassrls bool User bypasses every row-level security policy, see Section 5.8 for more information. |
passwd text Password (possibly encrypted); null if none. See pg_authid for details of how encrypted passwords are stored. |
valuntil timestamptz Password expiry time (only used for password authentication) |
useconfig text[] Session defaults for run-time configuration variables |