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1. zoomMaybe :: forall k (is :: IxList) c . (Zoom m n s t, Is k An_AffineTraversal) => Optic' k is t s -> m c -> n (Maybe c)

   optics-extra	Optics.Zoom

   No documentation available.

2. optionType_maybe :: OptionType a -> OptionType (Maybe a)

   options	Options

   Store an option as a Maybe of another type The value will be Nothing if the option is set to an empty string.

3. queryMaybe' :: MonadQuery m => Relation p r -> m (PlaceHolders p, Record Flat (Maybe r))

   relational-query	Database.Relational

   Join sub-query with place-holder parameter p. Query result is Maybe.

4. class ProjectableFlattenMaybe a b

   relational-query	Database.Relational.Arrow

   Interface to compose phantom Maybe nested type.

5. class ProjectableMaybe (p :: Type -> Type)

   relational-query	Database.Relational.Arrow

   Interface to control Maybe of phantom type in records.

6. avgMaybe :: (Num a, Fractional b, AggregatedContext ac, SqlContext ac) => Record Flat (Maybe a) -> Record ac (Maybe b)

   relational-query	Database.Relational.Arrow

   Aggregation function AVG.

7. caseMaybe :: (OperatorContext c, PersistableWidth b) => Record c a -> [(Record c a, Record c (Maybe b))] -> Record c (Maybe b)

   relational-query	Database.Relational.Arrow

   Null default version of case'.

8. caseSearchMaybe :: (OperatorContext c, PersistableWidth a) => [(Predicate c, Record c (Maybe a))] -> Record c (Maybe a)

   relational-query	Database.Relational.Arrow

   Null default version of caseSearch.

9. flattenMaybe :: ProjectableMaybe p => p (Maybe (Maybe a)) -> p (Maybe a)

   relational-query	Database.Relational.Arrow

   Compose nested Maybe phantom type on record.

10. flattenPiMaybe :: (PersistableWidth a, ProjectableFlattenMaybe (Maybe b) c) => Record cont (Maybe a) -> Pi a b -> Record cont c

    relational-query	Database.Relational.Arrow

    Get narrower record with flatten leaf phantom Maybe types along with projection path.

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