Do not uselessly grant CREATE and ALTER TABLE

This lesson should have been learned with the CREATE TABLE of death, but it is worth a refresh. Do not uselessly grant CREATE and ALTER TABLE The reason I am posting this reminder is that another crashing bug related to DDL came to my attention. This bug is only fixed in a recent version of MySQL (probably not affecting 5.6 and 5.7), so if you are running the latest 8.0 or 8.4, you should