Please see https://alembic.readthedocs.org/en/latest/index.html for general documentation

To create alembic migrations use:
$ watcher-db-manage revision --message "description of revision" --autogenerate

Stamp db with most recent migration version, without actually running migrations
$ watcher-db-manage stamp head

Upgrade can be performed by:
$ watcher-db-manage upgrade
$ watcher-db-manage upgrade head

Downgrading db:
$ watcher-db-manage downgrade
$ watcher-db-manage downgrade base
