Well, you have http://hackage.haskell.org/package/esqueleto http://hackage.haskell.org/package/esqueleto , that while not all-mighty-powerfull, it does allow fo

Well, you have http://hackage.haskell.org/package/esqueleto http://hackage.haskell.org/package/esqueleto , that while not all-mighty-powerfull, it does allow for useful joins otherwise not available in the 'standard' Persistent API, while being compatible with it.