Sorry, yes, I meant "foos.foos='value'", which AR writes because the code generating it doesn't pay attention to what joins you've attached (or in this case, ha

Sorry, yes, I meant "foos.foos='value'", which AR writes because the code generating it doesn't pay attention to what joins you've attached (or in this case, haven't) and what ambiguities that might create, so it does the safe thing. I also noticed the error you mentioned when playing with it, but didn't understand it well enough to be confident there was no way to force that cast.