Safe Haskell	None
Language	Haskell2010

Database.PostgreSQL.PQTypes.Model.CompositeType

Synopsis

data CompositeType = CompositeType {
- ctName :: !(RawSQL ())
- ctColumns :: ![CompositeColumn]
}
data CompositeColumn = CompositeColumn {
- ccName :: !(RawSQL ())
- ccType :: ColumnType
}
defineComposites :: MonadDB m => [CompositeType] -> m ()

Documentation

data CompositeType Source #

Constructors

CompositeType
Fields ctName :: !(RawSQL ()) ctColumns :: ![CompositeColumn]

Instances

Eq CompositeType Source #
Instance details Defined in Database.PostgreSQL.PQTypes.Model.CompositeType Methods (==) :: CompositeType -> CompositeType -> Bool # (/=) :: CompositeType -> CompositeType -> Bool #
Ord CompositeType Source #
Instance details Defined in Database.PostgreSQL.PQTypes.Model.CompositeType Methods compare :: CompositeType -> CompositeType -> Ordering # (<) :: CompositeType -> CompositeType -> Bool # (<=) :: CompositeType -> CompositeType -> Bool # (>) :: CompositeType -> CompositeType -> Bool # (>=) :: CompositeType -> CompositeType -> Bool # max :: CompositeType -> CompositeType -> CompositeType # min :: CompositeType -> CompositeType -> CompositeType #
Show CompositeType Source #
Instance details Defined in Database.PostgreSQL.PQTypes.Model.CompositeType Methods showsPrec :: Int -> CompositeType -> ShowS # show :: CompositeType -> String # showList :: [CompositeType] -> ShowS #

data CompositeColumn Source #

Constructors

CompositeColumn
Fields ccName :: !(RawSQL ()) ccType :: ColumnType

Instances

Eq CompositeColumn Source #
Instance details Defined in Database.PostgreSQL.PQTypes.Model.CompositeType Methods (==) :: CompositeColumn -> CompositeColumn -> Bool # (/=) :: CompositeColumn -> CompositeColumn -> Bool #
Ord CompositeColumn Source #
Instance details Defined in Database.PostgreSQL.PQTypes.Model.CompositeType Methods compare :: CompositeColumn -> CompositeColumn -> Ordering # (<) :: CompositeColumn -> CompositeColumn -> Bool # (<=) :: CompositeColumn -> CompositeColumn -> Bool # (>) :: CompositeColumn -> CompositeColumn -> Bool # (>=) :: CompositeColumn -> CompositeColumn -> Bool # max :: CompositeColumn -> CompositeColumn -> CompositeColumn # min :: CompositeColumn -> CompositeColumn -> CompositeColumn #
Show CompositeColumn Source #
Instance details Defined in Database.PostgreSQL.PQTypes.Model.CompositeType Methods showsPrec :: Int -> CompositeColumn -> ShowS # show :: CompositeColumn -> String # showList :: [CompositeColumn] -> ShowS #

defineComposites :: MonadDB m => [CompositeType] -> m () Source #

Composite types are static in a sense that they can either be created or dropped, altering them is not possible. Therefore they are not part of the migration process. This is not a problem since their exclusive usage is for intermediate representation of complex nested data structures fetched from the database.