relational-query-0.8.6.0: Typeful, Modular, Relational, algebraic query engine

Copyright2013-2017 Kei Hibino
LicenseBSD3
Maintainerex8k.hibino@gmail.com
Stabilityexperimental
Portabilityunknown
Safe HaskellNone
LanguageHaskell2010

Database.Relational.Query.Scalar

Contents

Description

This module defines type classes and templates for scalar queries.

Synopsis

Single degree constraint

class PersistableWidth ct => ScalarDegree ct Source #

Constraint which represents scalar degree.

Instances

defineScalarDegree :: TypeQ -> Q [Dec] Source #

ScalarDegree instance templates.