SYS_USERLOG - Amazon Redshift
Table columnsSample queries

Amazon Redshift will no longer support the creation of new Python UDFs starting November 1, 2025. If you would like to use Python UDFs, create the UDFs prior to that date. Existing Python UDFs will continue to function as normal. For more information, see the blog post .

SYS_USERLOG

Records details for the following changes to a database user:

  • Create user

  • Drop user

  • Alter user (rename)

  • Alter user (alter properties)

You can query this view to see information about serverless workgroups and provisioned clusters.

SYS_USERLOG is visible only to superusers. For more information, see Visibility of data in system tables and views.

Table columns

Column name Data type Description
user_id integer The identifier of the user who submitted the unload.
user_name character(50) Username of the user affected by the change.
original_user_name character(50) The original username in a rename action. This field is empty for all other actions.
action character(10) The action that occurred. Valid values are alter, create, drop, and rename.
has_create_db_privs integer If true (a value of 1), the user has create database permissions.
is_superuser integer If true (a value of 1), the user can update system catalogs.
has_update_catalog_privs integer If true (a value of 1), the user can update system catalogs.
password_expiration timestamp The password expiration date.
session_id integer The process ID.
transaction_id bigint The transaction ID.
record_time timestamp Time in UTC of when the query started.

Sample queries

The following example performs four user actions, then queries the SYS_USERLOG view.

CREATE USER userlog1 password 'Userlog1';
ALTER USER userlog1 createdb createuser;
ALTER USER userlog1 rename  to userlog2;
DROP user userlog2;

SELECT user_id, user_name, original_user_name, action, has_create_db_privs, is_superuser from SYS_USERLOG order by record_time desc;

user_id |  user_name | original_user_name |  action | has_create_db_privs | is_superuser
--------+------------+--------------------+---------+---------------------+------------
    108 |  userlog2  |                    | drop    |                   1 |   1
    108 |  userlog2  |     userlog1       | rename  |                   1 |   1
    108 |  userlog1  |                    | alter   |                   1 |   1
    108 |  userlog1  |                    | create  |                   0 |   0
 (4 rows)