Hi
It sounds like you're encountering a common issue with Azure Database for PostgreSQL flexible servers. The error message indicates that the server is currently busy with other operations, which can prevent the update command from executing successfully
Busy Server Operations: This issue can occur if the server is engaged in other operations, such as maintenance or other DDL operation.
Check Server Status: Verify if there are any ongoing operations or maintenance tasks that might be causing the server to be busy.
Thank You!