53.26. pg_shadow
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## 53.26. 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 53.26. 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 5.9 for more information.
`passwd` text Encrypted password; 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

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