I have been using this for more than a year now and still cannot get the auto-complete working. So I already switched to another stand alone application instead.
I did that exact same thing, the checkbox is enabled. I could see the two connections opened to my database and Database structure shows all of the databases available.
So, when I start typing in select * from the database. and press ctrl + space I don't see an option. Even if I press right click in the SQL editor after the '.' I don't see a command or option to auto-assist me.
Am I missing something here.
This is a bug. I tried the same and had to enter at least one character extra to get auto completion work. That means I typed:
select * from the database.T and press ctrl + space
and get all tables started with 'T'.
This will be fixed.