Migration stopped working after v3.1.11

Are you using the PDO driver perhaps?
This commit adds the whole FROM statement, that weren't there before.

I think you can switch to mysqli driver and it will still work in 3.1.11 until it's fixed.

I'm skeptical that it is due to that commit. The whole FROM statement has always been there. It's how the table name is escaped that changed.

Maybe the database config didn't supply a database name? Or, that property got whacked by some other code?