@josevalim I noticed one other thing while trying to help debug the sqlite adapter's integration test failures on the latest Ecto.

Their adapter has to dump booleans to 0/1 which is ok if they belong to a typed field but fails to load properly when for instance they are a value in a map. This is an example of a test that will fail on their adapter:

assert TestRepo.one(from o in Order, select: o.meta["enabled"]) == true (the LHS will be 1)

This made me curious if it would work with embeds, but I noticed that the map values aren't typed even there. I wanted to investigate keeping the type for embed values but before I wasted a lot of time I wanted to see if you knew a reason not to do this. Thanks!

From a first glance it makes sense that we should try to keep the type as much as possible. :)