Adds proper directory-based migrations, vs. using the "auto-migration" feature from persistent. Requires a couple of small dependencies (persistent-postgresql already depends on postgresql-simple, so we already had some of the heaviest packages anyway.)
Adds proper directory-based migrations, vs. using the "auto-migration" feature from persistent. Requires a couple of small dependencies (persistent-postgresql already depends on postgresql-simple, so we already had some of the heaviest packages anyway.)