问题
For example, I saved {id, name} in mnesia and want to update to {id, name, age}, do I have to call transform_table every time I change schema?
回答1:
The simplest way is to delete the table and recreate it. If you need to keep the data in the table, mnesia:transform_table is the way to go.
来源：https://stackoverflow.com/questions/15998244/whats-the-simplest-way-to-update-mnesia-schema