1. Identify the root cause of the PostgreSQL 58P02 error:The PostgreSQL 58P02 error is a “could not connect to the server” error. This could be caused by a number of issues, such as a misconfigured server, a network issue, or a problem with the database itself. To identify the root cause, you can use the following code snippet to check the server logs:

SELECT * FROM pg_log WHERE message LIKE '%58P02%';

2. Fix the root cause of the PostgreSQL 58P02 error:Once you have identified the root cause of the error, you can use the following code snippet to fix the issue:

ALTER SYSTEM SET log_connections = 'on'

3. Restart the PostgreSQL server:Once the root cause of the error has been fixed, you will need to restart the PostgreSQL server in order to apply the changes. You can do this using the following code snippet:

SELECT pg_reload_conf();

4. Use an automated database observability tool: Finally, it is recommended to use an automated database observability tool to monitor and fix PostgreSQL 58P02 errors. These tools can provide real-time insights into the performance of your database, allowing you to quickly identify and fix any issues that may arise. Additionally, they can provide detailed reports on the root cause of the error, allowing you to quickly identify and fix the issue.