Huh, neat. Thanks for letting me know. I think it might be worth mentioning this in the .expert documentation. Just a message like "Note: ".expert" creates new database connections which will not retain loaded extensions unless they are Automatically Load Statically Linked Extensions or Persistent Loadable Extensions. A database schema that uses functions from an extension that is not persistent will cause the ".expert" command to fail" On the topic of the .expert docs, I just spotted a missing 'e' in the last line. "Th functionality described[...]"