Opaleye.Internal.Column

Documentation

newtype Column a

Numeric Column types are instances of Num, so you can use *, /, +, - on them.

Constructors

Column PrimExpr

Instances

Default Constant Bool (Column PGBool)

Default Constant Double (Column PGFloat8)

Default Constant Int (Column PGInt4)

Default Constant Int32 (Column PGInt4)

Default Constant Int64 (Column PGInt8)

Default Constant String (Column PGText)

Default Constant ByteString (Column PGJsonb)

Default Constant ByteString (Column PGJson)

Default Constant ByteString (Column PGBytea)

Default Constant ByteString (Column PGJsonb)

Default Constant ByteString (Column PGJson)

Default Constant ByteString (Column PGBytea)

Default Constant Text (Column PGText)

Default Constant UTCTime (Column PGTimestamptz)

Default Constant Value (Column PGJsonb)

Default Constant Value (Column PGJson)

Default Constant Text (Column PGText)

Default Constant LocalTime (Column PGTimestamp)

Default Constant TimeOfDay (Column PGTime)

Default Constant Day (Column PGDate)

Default Constant UUID (Column PGUuid)

Default ViewColumnMaker String (Column a)

QueryRunnerColumnDefault a b => Default QueryRunner (Column a) b

Default EqPP (Column a) (Column a)

(Default Constant a (Column b), IsSqlType b) => Default Constant [a] (Column (PGArray b))

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

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

Default Constant (CI Text) (Column PGCitext)

Default Constant (CI Text) (Column PGCitext)

Default Unpackspec (Column a) (Column a)

Default Binaryspec (Column a) (Column a)

Default Valuesspec (Column a) (Column a)

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

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

Default ColumnMaker (Column a) (Column a)

Default Distinctspec (Column a) (Column a)

(PGNum a, PGFractional a) => Fractional (Column a)

PGNum a => Num (Column a)

Show (Column a)

PGString a => IsString (Column a)

data Nullable a

Constructors

Nullable

Instances

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

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

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

IsSqlType a => IsSqlType (Nullable a)

PGOrd a => PGOrd (Nullable a)

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

unColumn :: Column a -> PrimExpr

unsafeCoerce :: Column a -> Column b

Deprecated: Use unsafeCoerceColumn instead

unsafeCoerceColumn :: Column a -> Column b

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

Cast a column to any other type. 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

Methods

pgFromInteger :: Integer -> Column a

Instances

PGNum PGInt4

PGNum PGInt8

PGNum PGFloat8

class PGFractional a where

Methods

pgFromRational :: Rational -> Column a

Instances

PGFractional PGFloat8

class PGIntegral a

Instances

PGIntegral PGInt2

PGIntegral PGInt4

PGIntegral PGInt8

class PGString a where

Methods

pgFromString :: String -> Column a

Instances

PGString PGCitext

PGString PGText