@@ -68,16 +68,12 @@ module Squeal.PostgreSQL.Schema
6868 -- * Generics
6969 , SameField
7070 , SameFields
71− -- * PostgreSQL Constraints
72− , (:=>)
73− , ColumnConstraint (..)
7471 ) where
7572
7673import Control.DeepSeq
7774import Data.ByteString
7875import Data.Monoid
7976import Data.String
80−import Data.Type.Set
8177import Generics.SOP (AllZip)
8278import GHC.Generics (Generic)
8379import GHC.Exts
@@ -326,10 +322,3 @@ type family SameFields
326322 ('Type.Newtype _module _datatype ('Type.Record _constructor fields))
327323 columns
328324 = AllZip SameField fields columns
329−
330−type (:=>) constraints ty = '(AsSet constraints,ty)
331−
332−data ColumnConstraint
333− = Default
334− | Unique
335− | References Symbol Symbol