Michael Snoyman пишет:

   I'am trying to use Persist to select all entities from table but can't figure out syntax to use.
   Now I was able to select using fake Filter. How can I avoid fake filter and select all record?

If you haven't specified types elsewhere, you can do so with a type signature like this:

    selectList ([] :: [Filter MyEntity]) [] 0 0

  That is what I looking for. Thanx Michael!
PS. I'am 3 month haskeller - sorry for newby question.