Opaleye.Internal.Column

Documentation

newtype Column pgType

A column of a Query, of type pgType. For example Column PGInt4 is an int4 column and a Column PGText is a text column.

Do not use the Show instance of Column. It is considered deprecated and will be removed in version 0.7.

The name Column will be replaced by Field in version 0.7. There already exists a Field type family to help smooth the transition. We recommend that you use Field_, Field or FieldNullable instead of Column everywhere that it is sufficient.

Constructors

Column PrimExpr

Instances

Default ViewColumnMaker String (Column a)

Defined in Opaleye.Internal.TableMaker

Methods

def :: ViewColumnMaker String (Column a)

Default RelExprMaker String (Column a)

Defined in Opaleye.Internal.Operators

Methods

def :: RelExprMaker String (Column a)

Default ToFields Bool (Column SqlBool)

Defined in Opaleye.Constant

Methods

def :: ToFields Bool (Column SqlBool)

Default ToFields Double (Column SqlFloat8)

Defined in Opaleye.Constant

Methods

def :: ToFields Double (Column SqlFloat8)

Default ToFields Int (Column SqlInt4)

Defined in Opaleye.Constant

Methods

def :: ToFields Int (Column SqlInt4)

Default ToFields Int32 (Column SqlInt4)

Defined in Opaleye.Constant

Methods

def :: ToFields Int32 (Column SqlInt4)

Default ToFields Int64 (Column SqlInt8)

Defined in Opaleye.Constant

Methods

def :: ToFields Int64 (Column SqlInt8)

Default ToFields ByteString (Column SqlJsonb)

Defined in Opaleye.Constant

Methods

def :: ToFields ByteString (Column SqlJsonb)

Default ToFields ByteString (Column SqlJson)

Defined in Opaleye.Constant

Methods

def :: ToFields ByteString (Column SqlJson)

Default ToFields ByteString (Column SqlBytea)

Defined in Opaleye.Constant

Methods

def :: ToFields ByteString (Column SqlBytea)

Default ToFields ByteString (Column SqlJsonb)

Defined in Opaleye.Constant

Methods

def :: ToFields ByteString (Column SqlJsonb)

Default ToFields ByteString (Column SqlJson)

Defined in Opaleye.Constant

Methods

def :: ToFields ByteString (Column SqlJson)

Default ToFields ByteString (Column SqlBytea)

Defined in Opaleye.Constant

Methods

def :: ToFields ByteString (Column SqlBytea)

Default ToFields Scientific (Column SqlNumeric)

Defined in Opaleye.Constant

Methods

def :: ToFields Scientific (Column SqlNumeric)

Default ToFields Text (Column SqlText)

Defined in Opaleye.Constant

Methods

def :: ToFields Text (Column SqlText)

Default ToFields UTCTime (Column SqlTimestamptz)

Defined in Opaleye.Constant

Methods

def :: ToFields UTCTime (Column SqlTimestamptz)

Default ToFields Value (Column SqlJsonb)

Defined in Opaleye.Constant

Methods

def :: ToFields Value (Column SqlJsonb)

Default ToFields Value (Column SqlJson)

Defined in Opaleye.Constant

Methods

def :: ToFields Value (Column SqlJson)

Default ToFields Text (Column SqlText)

Defined in Opaleye.Constant

Methods

def :: ToFields Text (Column SqlText)

Default ToFields String (Column SqlText)

Defined in Opaleye.Constant

Methods

def :: ToFields String (Column SqlText)

Default ToFields ZonedTime (Column SqlTimestamptz)

Defined in Opaleye.Constant

Methods

def :: ToFields ZonedTime (Column SqlTimestamptz)

Default ToFields LocalTime (Column SqlTimestamp)

Defined in Opaleye.Constant

Methods

def :: ToFields LocalTime (Column SqlTimestamp)

Default ToFields TimeOfDay (Column SqlTime)

Defined in Opaleye.Constant

Methods

def :: ToFields TimeOfDay (Column SqlTime)

Default ToFields Day (Column SqlDate)

Defined in Opaleye.Constant

Methods

def :: ToFields Day (Column SqlDate)

Default ToFields UUID (Column SqlUuid)

Defined in Opaleye.Constant

Methods

def :: ToFields UUID (Column SqlUuid)

DefaultFromField a b => Default FromFields (Column a) b

Defined in Opaleye.Internal.RunQuery

Methods

def :: FromFields (Column a) b

Default Unpackspec (Column a) (Column a)

Defined in Opaleye.Internal.Unpackspec

Methods

def :: Unpackspec (Column a) (Column a)

Default Valuesspec (Column a) (Column a)

Defined in Opaleye.Internal.Values

Methods

def :: Valuesspec (Column a) (Column a)

Default Binaryspec (Column a) (Column a)

Defined in Opaleye.Internal.Binary

Methods

def :: Binaryspec (Column a) (Column a)

Default IfPP (Column a) (Column a)

Defined in Opaleye.Internal.Operators

Methods

def :: IfPP (Column a) (Column a)

Default EqPP (Column a) (Column a)

Defined in Opaleye.Internal.Operators

Methods

def :: EqPP (Column a) (Column a)

Default NullMaker (Column a) (Column (Nullable a))

Defined in Opaleye.Internal.Join

Methods

def :: NullMaker (Column a) (Column (Nullable a))

Default NullMaker (Column (Nullable a)) (Column (Nullable a))

Defined in Opaleye.Internal.Join

Methods

def :: NullMaker (Column (Nullable a)) (Column (Nullable a))

(Default ToFields a (Column b), IsSqlType b) => Default ToFields [a] (Column (SqlArray b))

Defined in Opaleye.Constant

Methods

def :: ToFields [a] (Column (SqlArray b))

Default ToFields haskell (Column sql) => Default ToFields (Maybe haskell) (Maybe (Column sql))

Defined in Opaleye.Constant

Methods

def :: ToFields (Maybe haskell) (Maybe (Column sql))

Default ToFields haskell (Column sql) => Default ToFields (Maybe haskell) (Column (Nullable sql))

Defined in Opaleye.Constant

Methods

def :: ToFields (Maybe haskell) (Column (Nullable sql))

Default ToFields (CI Text) (Column SqlCitext)

Defined in Opaleye.Constant

Methods

def :: ToFields (CI Text) (Column SqlCitext)

Default ToFields (CI Text) (Column SqlCitext)

Defined in Opaleye.Constant

Methods

def :: ToFields (CI Text) (Column SqlCitext)

Default ToFields (PGRange Int) (Column (SqlRange SqlInt4))

Defined in Opaleye.Constant

Methods

def :: ToFields (PGRange Int) (Column (SqlRange SqlInt4))

Default ToFields (PGRange Int64) (Column (SqlRange SqlInt8))

Defined in Opaleye.Constant

Methods

def :: ToFields (PGRange Int64) (Column (SqlRange SqlInt8))

Default ToFields (PGRange Scientific) (Column (SqlRange SqlNumeric))

Defined in Opaleye.Constant

Methods

def :: ToFields (PGRange Scientific) (Column (SqlRange SqlNumeric))

Default ToFields (PGRange UTCTime) (Column (SqlRange SqlTimestamptz))

Defined in Opaleye.Constant

Methods

def :: ToFields (PGRange UTCTime) (Column (SqlRange SqlTimestamptz))

Default ToFields (PGRange LocalTime) (Column (SqlRange SqlTimestamp))

Defined in Opaleye.Constant

Methods

def :: ToFields (PGRange LocalTime) (Column (SqlRange SqlTimestamp))

Default ToFields (PGRange Day) (Column (SqlRange SqlDate))

Defined in Opaleye.Constant

Methods

def :: ToFields (PGRange Day) (Column (SqlRange SqlDate))

Default Distinctspec (Column a) (Column a)

Defined in Opaleye.Internal.Distinct

Methods

def :: Distinctspec (Column a) (Column a)

Default Updater (Column a) (Maybe (Column a))

Defined in Opaleye.Internal.Manipulation

Methods

def :: Updater (Column a) (Maybe (Column a))

Default Updater (Column a) (Column a)

Defined in Opaleye.Internal.Manipulation

Methods

def :: Updater (Column a) (Column a)

(SqlNum a, SqlFractional a) => Fractional (Column a)

Defined in Opaleye.Internal.Column

Methods

(/) :: Column a -> Column a -> Column a

recip :: Column a -> Column a

fromRational :: Rational -> Column a

SqlNum a => Num (Column a)

Defined in Opaleye.Internal.Column

Methods

(+) :: Column a -> Column a -> Column a

(-) :: Column a -> Column a -> Column a

(*) :: Column a -> Column a -> Column a

negate :: Column a -> Column a

abs :: Column a -> Column a

signum :: Column a -> Column a

fromInteger :: Integer -> Column a

Show (Column pgType)

Defined in Opaleye.Internal.Column

Methods

showsPrec :: Int -> Column pgType -> ShowS

show :: Column pgType -> String

showList :: [Column pgType] -> ShowS

SqlString a => IsString (Column a)

Defined in Opaleye.Internal.Column

Methods

fromString :: String -> Column a

TableColumn (Maybe (Column a)) a

Defined in Opaleye.Internal.Table

Methods

tableColumn :: String -> TableFields (Maybe (Column a)) (Column a)

tableField :: String -> TableFields (Maybe (Column a)) (Column a)

TableColumn (Column a) a

Defined in Opaleye.Internal.Table

Methods

tableColumn :: String -> TableFields (Column a) (Column a)

tableField :: String -> TableFields (Column a) (Column a)

type Map Nulled (Column (Nullable a))

Defined in Opaleye.Internal.Join

type Map Nulled (Column (Nullable a)) = Column (Nullable a)

type Map Nulled (Column PGJsonb)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGJsonb) = Column (Nullable PGJsonb)

type Map Nulled (Column PGJson)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGJson) = Column (Nullable PGJson)

type Map Nulled (Column PGBytea)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGBytea) = Column (Nullable PGBytea)

type Map Nulled (Column PGCitext)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGCitext) = Column (Nullable PGCitext)

type Map Nulled (Column PGUuid)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGUuid) = Column (Nullable PGUuid)

type Map Nulled (Column PGTimestamptz)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGTimestamptz) = Column (Nullable PGTimestamptz)

type Map Nulled (Column PGTimestamp)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGTimestamp) = Column (Nullable PGTimestamp)

type Map Nulled (Column PGTime)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGTime) = Column (Nullable PGTime)

type Map Nulled (Column PGText)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGText) = Column (Nullable PGText)

type Map Nulled (Column PGText)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGText) = Column (Nullable PGText)

type Map Nulled (Column PGInt4)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGInt4) = Column (Nullable PGInt4)

type Map Nulled (Column PGInt8)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGInt8) = Column (Nullable PGInt8)

type Map Nulled (Column PGFloat8)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGFloat8) = Column (Nullable PGFloat8)

type Map Nulled (Column PGDate)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGDate) = Column (Nullable PGDate)

type Map Nulled (Column PGBool)

Defined in Opaleye.Internal.Join

type Map Nulled (Column PGBool) = Column (Nullable PGBool)

data Nullable a

Only used within a Column, to indicate that it can be NULL. For example, a Column (Nullable PGText) can be NULL but a Column PGText cannot.

Constructors

Nullable

Instances

Default NullMaker (Column a) (Column (Nullable a))

Defined in Opaleye.Internal.Join

Methods

def :: NullMaker (Column a) (Column (Nullable a))

Default NullMaker (Column (Nullable a)) (Column (Nullable a))

Defined in Opaleye.Internal.Join

Methods

def :: NullMaker (Column (Nullable a)) (Column (Nullable a))

Default ToFields haskell (Column sql) => Default ToFields (Maybe haskell) (Column (Nullable sql))

Defined in Opaleye.Constant

Methods

def :: ToFields (Maybe haskell) (Column (Nullable sql))

IsSqlType a => IsSqlType (Nullable a)

Defined in Opaleye.Internal.PGTypes

Methods

showPGType :: proxy (Nullable a) -> String

showSqlType :: proxy (Nullable a) -> String

PGOrd a => PGOrd (Nullable a)

Defined in Opaleye.Order

DefaultFromField a b => QueryRunnerColumnDefault (Nullable a) (Maybe b)

Defined in Opaleye.Internal.RunQuery

Methods

queryRunnerColumnDefault :: FromField (Nullable a) (Maybe b)

defaultFromField :: FromField (Nullable a) (Maybe b)

type Map Nulled (Column (Nullable a))

Defined in Opaleye.Internal.Join

type Map Nulled (Column (Nullable a)) = Column (Nullable a)

unColumn :: Column a -> PrimExpr

unsafeCoerceColumn :: Column a -> Column b

Treat a Column as though it were of a different type. If such a treatment is not valid then Postgres may fail with an error at SQL run time.

unsafeCast :: String -> Column a -> Column b

Cast a column to any other type. Implements Postgres's :: or CAST( ... AS ... ) operations. This is safe for some conversions, such as uuid to text.

unsafeCompositeField :: Column a -> String -> Column b

binOp :: BinOp -> Column a -> Column b -> Column c

unOp :: UnOp -> Column a -> Column b

unsafeCase_ :: [(Column pgBool, Column a)] -> Column a -> Column a

unsafeIfThenElse :: Column pgBool -> Column a -> Column a -> Column a

unsafeGt :: Column a -> Column a -> Column pgBool

unsafeEq :: Column a -> Column a -> Column pgBool

class PGNum a where

Minimal complete definition

sqlFromInteger

Methods

pgFromInteger :: Integer -> Column a

sqlFromInteger :: Integer -> Column a

Instances

PGNum PGInt4

Defined in Opaleye.PGTypes

Methods

pgFromInteger :: Integer -> Column PGInt4

sqlFromInteger :: Integer -> Column PGInt4

PGNum PGInt8

Defined in Opaleye.PGTypes

Methods

pgFromInteger :: Integer -> Column PGInt8

sqlFromInteger :: Integer -> Column PGInt8

PGNum PGFloat8

Defined in Opaleye.PGTypes

Methods

pgFromInteger :: Integer -> Column PGFloat8

sqlFromInteger :: Integer -> Column PGFloat8

type SqlNum = PGNum

class PGFractional a where

Minimal complete definition

sqlFromRational

Methods

pgFromRational :: Rational -> Column a

sqlFromRational :: Rational -> Column a

Instances

PGFractional PGFloat8

Defined in Opaleye.PGTypes

Methods

pgFromRational :: Rational -> Column PGFloat8

sqlFromRational :: Rational -> Column PGFloat8

type SqlFractional = PGFractional

class PGIntegral a

A dummy typeclass whose instances support integral operations.

Instances

PGIntegral PGNumeric

Defined in Opaleye.PGTypes

PGIntegral PGInt2

Defined in Opaleye.PGTypes

PGIntegral PGInt4

Defined in Opaleye.PGTypes

PGIntegral PGInt8

Defined in Opaleye.PGTypes

type SqlIntegral = PGIntegral

class PGString a where

Minimal complete definition

sqlFromString

Methods

pgFromString :: String -> Column a

sqlFromString :: String -> Column a

Instances

PGString PGCitext

Defined in Opaleye.PGTypes

Methods

pgFromString :: String -> Column PGCitext

sqlFromString :: String -> Column PGCitext

PGString PGText

Defined in Opaleye.PGTypes

Methods

pgFromString :: String -> Column PGText

sqlFromString :: String -> Column PGText

type SqlString = PGString