Actually the problem here is that the ? is being put inside of a value instead of ‘being’ the value itself, and Ecto doesn’t support that. Rather you’d need to do something like build the json out of the query and put it in en-masse, something like:
where: fragment(~s(review @> ?), Jason.to_string_or_whatever!(%{product: %{category: "Fitness"}})
Or so.
