There are a few issues to be aware of when using Repo.preload. First, it's hitting the database to fetch the association data. FWIW, using Query.preloa

There are a few issues to be aware of when using Repo.preload. First, it's hitting the database to fetch the association data. FWIW, using Query.preload with will produce the same two queries when used with plain atoms like "Repo.all from p in Post, preload: [:comments]"