| PostgreSQL 9.6.0 Documentation | |||
|---|---|---|---|
| Prev | Up | Chapter 50. System Catalogs | Next |
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 50-77. pg_shadow Columns
| Name | Type | References | Description |
|---|---|---|---|
| usename | name | pg_authid.rolname | User name |
| usesysid | oid | 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 5.7 for more information. | |
| passwd | text | Password (possibly encrypted); null if none. See pg_authid for details of how encrypted passwords are stored. | |
| valuntil | abstime | Password expiry time (only used for password authentication) | |
| useconfig | text[] | Session defaults for run-time configuration variables |