51.86. pg_shadow
The viewpg_shadow exists for backwards compatibility: it emulates a catalog that existed inPostgreSQL before version 8.1. It shows properties of all roles that are marked asrolcanlogin inpg_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 onpg_shadow that blanks out the password field.
Table 51.87. pg_shadow Columns
| Name | Type | References | Description |
|---|---|---|---|
usename | name | | User name |
usesysid | 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, seeSection 5.7 for more information. | |
passwd | text | Password (possibly encrypted); null if none. Seepg_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 |