Safe Haskell	None
Language	Haskell2010

Opaleye.Internal.Join

Documentation

newtype NullMaker a b #

Constructors

NullMaker (a -> b)

Instances

Profunctor NullMaker #
Methods dimap :: (a -> b) -> (c -> d) -> NullMaker b c -> NullMaker a d # lmap :: (a -> b) -> NullMaker b c -> NullMaker a c # rmap :: (b -> c) -> NullMaker a b -> NullMaker a c # (#.) :: Coercible * c b => (b -> c) -> NullMaker a b -> NullMaker a c # (.#) :: Coercible * b a => NullMaker b c -> (a -> b) -> NullMaker a c #
ProductProfunctor NullMaker #
Methods purePP :: b -> NullMaker a b # (**) :: NullMaker a (b -> c) -> NullMaker a b -> NullMaker a c # empty :: NullMaker () () # (*!) :: NullMaker a b -> NullMaker a' b' -> NullMaker (a, a') (b, b') #
Default NullMaker (Column a) (Column (Nullable a)) #
Methods def :: NullMaker (Column a) (Column (Nullable a)) #
Default NullMaker (Column (Nullable a)) (Column (Nullable a)) #
Methods def :: NullMaker (Column (Nullable a)) (Column (Nullable a)) #
Functor (NullMaker a) #
Methods fmap :: (a -> b) -> NullMaker a a -> NullMaker a b # (<$) :: a -> NullMaker a b -> NullMaker a a #
Applicative (NullMaker a) #
Methods pure :: a -> NullMaker a a # (<>) :: NullMaker a (a -> b) -> NullMaker a a -> NullMaker a b # liftA2 :: (a -> b -> c) -> NullMaker a a -> NullMaker a b -> NullMaker a c # (>) :: NullMaker a a -> NullMaker a b -> NullMaker a b # (<*) :: NullMaker a a -> NullMaker a b -> NullMaker a a #

toNullable :: NullMaker a b -> a -> b #

joinExplicit :: Unpackspec columnsA columnsA -> Unpackspec columnsB columnsB -> (columnsA -> returnedColumnsA) -> (columnsB -> returnedColumnsB) -> JoinType -> Query columnsA -> Query columnsB -> ((columnsA, columnsB) -> Column PGBool) -> Query (returnedColumnsA, returnedColumnsB) #

leftJoinAExplicit :: Unpackspec a a -> NullMaker a nullableA -> Query a -> QueryArr (a -> Column PGBool) nullableA #

extractLeftJoinFields :: Int -> Tag -> PrimExpr -> PM [(Symbol, PrimExpr)] PrimExpr #

data Nulled #

Instances

type IMap Nulled NullsT #
type IMap Nulled NullsT = NullsT
type IMap Nulled OT #
type IMap Nulled OT = NullsT
type Map Nulled (Column (Nullable a)) #
type Map Nulled (Column (Nullable a)) = Column (Nullable a)
type Map Nulled (Column PGJsonb) #
type Map Nulled (Column PGJsonb) = Column (Nullable PGJsonb)
type Map Nulled (Column PGJson) #
type Map Nulled (Column PGJson) = Column (Nullable PGJson)
type Map Nulled (Column PGBytea) #
type Map Nulled (Column PGBytea) = Column (Nullable PGBytea)
type Map Nulled (Column PGCitext) #
type Map Nulled (Column PGCitext) = Column (Nullable PGCitext)
type Map Nulled (Column PGUuid) #
type Map Nulled (Column PGUuid) = Column (Nullable PGUuid)
type Map Nulled (Column PGTimestamptz) #
type Map Nulled (Column PGTimestamptz) = Column (Nullable PGTimestamptz)
type Map Nulled (Column PGTimestamp) #
type Map Nulled (Column PGTimestamp) = Column (Nullable PGTimestamp)
type Map Nulled (Column PGTime) #
type Map Nulled (Column PGTime) = Column (Nullable PGTime)
type Map Nulled (Column PGText) #
type Map Nulled (Column PGText) = Column (Nullable PGText)
type Map Nulled (Column PGText) #
type Map Nulled (Column PGText) = Column (Nullable PGText)
type Map Nulled (Column PGInt4) #
type Map Nulled (Column PGInt4) = Column (Nullable PGInt4)
type Map Nulled (Column PGInt8) #
type Map Nulled (Column PGInt8) = Column (Nullable PGInt8)
type Map Nulled (Column PGFloat8) #
type Map Nulled (Column PGFloat8) = Column (Nullable PGFloat8)
type Map Nulled (Column PGDate) #
type Map Nulled (Column PGDate) = Column (Nullable PGDate)
type Map Nulled (Column PGBool) #
type Map Nulled (Column PGBool) = Column (Nullable PGBool)