Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, 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/) that was published on June 30, 2025. 

# SET SESSION AUTHORIZATION
<a name="r_SET_SESSION_AUTHORIZATION"></a>

Sets the user name for the current session.

You can use the SET SESSION AUTHORIZATION command, for example, to test database access by temporarily running a session or transaction as an unprivileged user. You must be a database superuser to run this command.

## Syntax
<a name="r_SET_SESSION_AUTHORIZATION-synopsis"></a>

```
SET [ LOCAL ] SESSION AUTHORIZATION { user_name | DEFAULT }
```

## Parameters
<a name="r_SET_SESSION_AUTHORIZATION-parameters"></a>

LOCAL  
Specifies that the setting is valid for the current transaction. Omitting this parameter specifies that the setting is valid for the current session.

 *user\_name*   
Name of the user to set. The user name may be written as an identifier or a string literal.

DEFAULT  
Sets the session user name to the default value.

## Examples
<a name="r_SET_SESSION_AUTHORIZATION-examples"></a>

The following example sets the user name for the current session to `dwuser`:

```
SET SESSION AUTHORIZATION 'dwuser';
```

The following example sets the user name for the current transaction to `dwuser`:

```
SET LOCAL SESSION AUTHORIZATION 'dwuser';
```

This example sets the user name for the current session to the default user name:

```
SET SESSION AUTHORIZATION DEFAULT;
```