Database.PostgreSQL.Stream.FromRow

Documentation

class FromRow a where

Methods

fromRow :: RowParser a

Instances

FromField a => FromRow (Only a)

(FromField a, FromField b) => FromRow (a, b)

(FromField a, FromField b, FromField c) => FromRow (a, b, c)

(FromField a, FromField b, FromField c, FromField d) => FromRow (a, b, c, d)

(FromField a, FromField b, FromField c, FromField d, FromField e) => FromRow (a, b, c, d, e)

(FromField a, FromField b, FromField c, FromField d, FromField e, FromField f) => FromRow (a, b, c, d, e, f)

(FromField a, FromField b, FromField c, FromField d, FromField e, FromField f, FromField g) => FromRow (a, b, c, d, e, f, g)

class FromField a where

Methods

fromField :: (Oid, Int, Maybe ByteString) -> a

Instances

FromField Bool

FromField Char

FromField Double

FromField Float

FromField Int

FromField Int8

FromField Int16

FromField Int32

FromField Int64

FromField Integer

FromField ByteString

FromField ByteString

FromField Text

FromField Text

FromField UUID

FromField DiffTime

FromField Day

FromField NominalDiffTime

FromField UTCTime

FromField TimeOfDay

FromField LocalTime

FromField Scientific

FromField a => FromField (Maybe a)

FromField (Fixed E2)

FromField (Fixed E3)

FromField (Vector Float)

FromField (Vector Int32)

FromField (TimeOfDay, TimeZone)

data Row

Constructors

Row

Fields

row :: !Row

rowresult :: !Result

field :: FromField a => RowParser a

Result set field

runRowParser :: RowParser a -> Row -> a

parseRows :: FromRow r => Query -> Result -> IO [r]