At least with [postgres](https://www.postgresql.org/docs/current/static/sql-update.html), one can add a `RETURNING` clause to an `UPDATE` query. The type in `esqueleto` does not support returning data from [`update`](https://hackage.haskell.org/package/esqueleto-2.5.3/docs/Database-Esqueleto.html#v:update)
