PG_USER

PG_USER displays information about users who can access the database.

**Table 1** PG_USER columns
Column	Type	Description
usename	Name	User name
usesysid	OID	ID of this user
usecreatedb	boolean	Whether the user has the permission to create databases
usesuper	boolean	whether the user is the initial system administrator with the highest rights.
usecatupd	boolean	whether the user can directly update system tables. Only the initial system administrator whose usesysid is 10 has this permission. It is not available for other users.
userepl	boolean	Whether the user has the permission to duplicate data streams
passwd	Text	Encrypted user password. The value is displayed as ********.
valbegin	Timestamp with time zone	Account validity start time; null if no start time
valuntil	Timestamp with time zone	Password expiry time; null if no expiration
respool	Name	Resource pool where the user is in
parent	OID	Parent user OID
spacelimit	Text	The storage space of the permanent table.
tempspacelimit	Text	The storage space of the temporary table.
spillspacelimit	Text	The operator disk flushing space.
useconfig	Text[]	Session defaults for run-time configuration variables
nodegroup	Name	Name of the logical cluster associated with the user. If no logical cluster is associated, this column is left blank.

Query the current database user list.

     
          SELECT usename  FROM pg_user;
  usename
-----------
 dbadmin
 u1
 u2
 u3
(4 rows)

Parent Topic: System Views

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