-- |-- Models of supported data structures according to the serialisation format.modulePostgreSQL.Binary.DatawhereimportPostgreSQL.Binary.Prelude-- |-- A representation of a data serializable to the PostgreSQL array binary format.---- Consists of a vector of dimensions, a vector of encoded elements,-- a flag specifying, whether it contains any nulls, and an oid.typeArray=(VectorArrayDimension,VectorContent,Bool,OID)-- |-- A width and a lower bound.---- Currently the lower bound is only allowed to have a value of @1@.typeArrayDimension=(Word32,Word32)-- |-- An encoded value. 'Nothing' if it represents a @NULL@.typeContent=MaybeByteString-- |-- A Postgres OID of a type.typeOID=Word32-- |-- A representation of a composite Postgres data (Record or Row).typeComposite=Vector(OID,Content)-- |-- HStore.typeHStore=Vector(ByteString,Content)-- |-- The four components of UUID.typeUUID=(Word32,Word32,Word32,Word32)-- |-- Representation of the PostgreSQL Numeric encoding.---- Consists of the following components:---- * Point index-- * Sign code-- * Components--typeNumeric=(Int16,Word16,VectorInt16)