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1. sumMaybe :: (Num a, AggregatedContext ac, SqlContext ac) => Record Flat (Maybe a) -> Record ac (Maybe a)

   relational-record	Database.Relational.Documentation

   Aggregation function SUM.

2. class ProjectableFlattenMaybe a b

   relational-schemas	Database.Custom.IBMDB2

   Interface to compose phantom Maybe nested type.

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

   relational-schemas	Database.Custom.IBMDB2

   Interface to control Maybe of phantom type in records.

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

   relational-schemas	Database.Custom.IBMDB2

   Aggregation function AVG.

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

   relational-schemas	Database.Custom.IBMDB2

   Null default version of case'.

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

   relational-schemas	Database.Custom.IBMDB2

   Null default version of caseSearch.

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

   relational-schemas	Database.Custom.IBMDB2

   Compose nested Maybe phantom type on record.

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

   relational-schemas	Database.Custom.IBMDB2

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

9. fromIntegralMaybe :: (SqlContext c, Integral a, Num b) => Record c (Maybe a) -> Record c (Maybe b)

   relational-schemas	Database.Custom.IBMDB2

   Number fromIntegral uni-operator.

10. fromMaybe :: (OperatorContext c, HasColumnConstraint NotNull r) => Record c r -> Record c (Maybe r) -> Record c r

    relational-schemas	Database.Custom.IBMDB2

    Operator from maybe type using record extended isNull.

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