Hasql.Interpolate.Internal.CompositeValue

Documentation

newtype CompositeValue a

Useful with DerivingVia to get a DecodeValue instance for any product type by parsing it as a composite.

Example

data Point = Point Int64 Int64
  deriving stock (Generic)
  deriving (DecodeValue) via CompositeValue Point

Constructors

CompositeValue a

Instances

(Generic a, GToComposite (Rep a)) => DecodeValue (CompositeValue a)

Defined in Hasql.Interpolate.Internal.CompositeValue

Methods

decodeValue :: Value (CompositeValue a)