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42.42. 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.

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 42-42. 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 may create databases
usesuper bool   User is a superuser
usecatupd bool   User may update system catalogs. (Even a superuser may not do this unless this column is true.)
passwd text   Password (possibly encrypted)
valuntil abstime   Password expiry time (only used for password authentication)
useconfig text[]   Session defaults for run-time configuration variables

 
 
  Published courtesy of The PostgreSQL Global Development Group Design by Interspire