Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the [ blog post ](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/). 

# SYS\$1USERLOG
<a name="SYS_USERLOG"></a>

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\$1USERLOG is visible only to superusers. For more information, see [Visibility of data in system tables and views](cm_chap_system-tables.md#c_visibility-of-data).

## Table columns
<a name="SYS_USERLOG-table-columns"></a>

[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/redshift/latest/dg/SYS_USERLOG.html)

## Sample queries
<a name="SYS_USERLOG-sample-queries"></a>

The following example performs four user actions, then queries the SYS\$1USERLOG 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)
```