You also need to go to the apm (/acs-admin/apm/) and watch that file to make the change become effective without server restart.
I just wanted to refer you to the docs here: https://openacs.org/doc/openacs-4-6-3/db-api.html - but it seems they don't contain anything about xql files, oops. Anybody knows if/where this stuff is documented? Maybe someone could at least add a comment at the bottom of that doc.
