I've actually had this happen in dbeaver. It has a feature (like some other db clients) where you can have a scratch SQL console.. you hit ctrl-enter to execute

I've actually had this happen in dbeaver. It has a feature (like some other db clients) where you can have a scratch SQL console.. you hit ctrl-enter to execute the statement the cursor is on, but it treats a newline as the end of a statement instead of continuing until it reaches a semicolon.