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/). 

# Deleting a custom domain
<a name="connecting-connection-CNAME-delete-api"></a>

To delete the custom domain name, the user must have permissions for the following actions:
+ For a provisioned cluster: `redshift:DeleteCustomDomainAssociation`
+ For an Amazon Redshift Serverless workgroup: `redshiftServerless:DeleteCustomDomainAssociation`

**On the console**

You can delete the custom domain name by selecting the **Actions** button and choosing **Delete custom domain name**. After you do this, you can still connect to the server by updating your tools to use the endpoints listed in the console.

**Using a CLI command**

The following sample shows how to delete the custom domain name. The delete operation requires that you provide the existing custom domain name for the cluster.

```
aws redshift delete-custom-domain-association ––cluster-id redshiftcluster ––custom-domain-name customdomainname
```

The following sample shows how to delete the custom domain name for an Amazon Redshift Serverless workgroup. The custom domain name is a required parameter.

```
aws redshift-serverless delete-custom-domain-association ––workgroup-name workgroupname ––custom-domain-name customdomainname
```

For more information, see [DeleteCustomDomainAssociation](https://docs.aws.amazon.com/redshift/latest/APIReference/API_DeleteCustomDomainAssociation.html).