Safe Haskell	None
Language	Haskell2010

PostgresqlTypes.Text

Contents

Synopsis

Documentation

data Text Source #

PostgreSQL text type. Variable-length character string with no null-characters.

PostgreSQL docs.

Instances

Instances details

Arbitrary Text Source #
Instance details Defined in PostgresqlTypes.Text Methods arbitrary :: Gen Text # shrink :: Text -> [Text] #
IsString Text Source #
Instance details Defined in PostgresqlTypes.Text Methods fromString :: String -> Text #
Read Text Source #
Instance details Defined in PostgresqlTypes.Text Methods readsPrec :: Int -> ReadS Text # readList :: ReadS [Text] # readPrec :: ReadPrec Text # readListPrec :: ReadPrec [Text] #
Show Text Source #
Instance details Defined in PostgresqlTypes.Text Methods showsPrec :: Int -> Text -> ShowS # show :: Text -> String # showList :: [Text] -> ShowS #
Eq Text Source #
Instance details Defined in PostgresqlTypes.Text Methods (==) :: Text -> Text -> Bool # (/=) :: Text -> Text -> Bool #
Ord Text Source #
Instance details Defined in PostgresqlTypes.Text Methods compare :: Text -> Text -> Ordering # (<) :: Text -> Text -> Bool # (<=) :: Text -> Text -> Bool # (>) :: Text -> Text -> Bool # (>=) :: Text -> Text -> Bool # max :: Text -> Text -> Text # min :: Text -> Text -> Text #
Hashable Text Source #
Instance details Defined in PostgresqlTypes.Text Methods hashWithSalt :: Int -> Text -> Int # hash :: Text -> Int #
IsBinaryPrimitive Text Source #
Instance details Defined in PostgresqlTypes.Text Methods binaryEncoder :: Text -> Write # binaryDecoder :: Variable (Either DecodingError Text) #
IsPrimitive Text Source #
Instance details Defined in PostgresqlTypes.Text Methods schemaName :: Tagged Text (Maybe Text) # typeName :: Tagged Text Text # baseOid :: Tagged Text (Maybe Word32) # arrayOid :: Tagged Text (Maybe Word32) # typeParams :: Tagged Text [Text] # typeSignature :: Tagged Text Text # textualEncoder :: Text -> TextBuilder # textualDecoder :: Parser Text #

Accessors

toText :: Text -> Text Source #

Extract the underlying Text value.

Constructors

normalizeFromText :: Text -> Text Source #

Construct a PostgreSQL Text from a Text value.

Strips null characters to ensure PostgreSQL compatibility.

refineFromText :: Text -> Maybe Text Source #

Construct a PostgreSQL Text from a Text value.

Returns Nothing if the text contains null characters (not supported by PostgreSQL).