opaleye-0.2: An SQL-generating DSL targeting PostgreSQL

Safe HaskellSafe-Inferred
LanguageHaskell98

Opaleye.Internal.QueryArr

Documentation

newtype QueryArr a b Source

Constructors

QueryArr ((a, PrimQuery, Tag) -> (b, PrimQuery, Tag)) 

Instances

type Query = QueryArr () Source

simpleQueryArr :: ((a, Tag) -> (b, PrimQuery, Tag)) -> QueryArr a b Source

runQueryArr :: QueryArr a b -> (a, PrimQuery, Tag) -> (b, PrimQuery, Tag) Source

runSimpleQueryArr :: QueryArr a b -> (a, Tag) -> (b, PrimQuery, Tag) Source

runQueryArrUnpack :: Unpackspec a b -> Query a -> (PrimQuery, [PrimExpr]) Source

first3 :: (a1 -> b) -> (a1, a2, a3) -> (b, a2, a3) Source