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

    relational-schemas Database.Custom.IBMDB2

    Interface to control Maybe of phantom type in records.

  2. 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.

  3. 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'.

  4. 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.

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

    relational-schemas Database.Custom.IBMDB2

    Compose nested Maybe phantom type on record.

  6. 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.

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

    relational-schemas Database.Custom.IBMDB2

    Number fromIntegral uni-operator.

  8. 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.

  9. likeMaybe :: (OperatorContext c, IsString a, LiteralSQL a) => Record c (Maybe a) -> a -> Record c (Maybe Bool)

    relational-schemas Database.Custom.IBMDB2

    String-compare operator corresponding SQL LIKE . Maybe type version.

  10. likeMaybe' :: (OperatorContext c, IsString a) => Record c (Maybe a) -> Record c (Maybe a) -> Record c (Maybe Bool)

    relational-schemas Database.Custom.IBMDB2

    String-compare operator corresponding SQL LIKE .

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