Copyright | (c) 2013 Leon P Smith |
---|---|
License | BSD3 |
Maintainer | Leon P Smith <leon@melding-monads.com> |
Stability | experimental |
Safe Haskell | None |
Language | Haskell98 |
Database.PostgreSQL.Simple.HStore
Description
Parsers and printers for hstore, a extended type bundled with PostgreSQL providing finite maps from text strings to text strings. See https://www.postgresql.org/docs/9.5/static/hstore.html for more information.
Note that in order to use this type, a database superuser must
install it by running a sql script in the share directory. This
can be done on PostgreSQL 9.1 and later with the command
CREATE EXTENSION hstore
. See
https://www.postgresql.org/docs/9.5/static/contrib.html for more
information.
- newtype HStoreList = HStoreList {
- fromHStoreList :: [(Text, Text)]
- newtype HStoreMap = HStoreMap {
- fromHStoreMap :: Map Text Text
- class ToHStore a where
- data HStoreBuilder
- toBuilder :: HStoreBuilder -> Builder
- toLazyByteString :: HStoreBuilder -> ByteString
- hstore :: (ToHStoreText a, ToHStoreText b) => a -> b -> HStoreBuilder
- parseHStoreList :: ByteString -> Either String HStoreList
- class ToHStoreText a where
- data HStoreText
Documentation
newtype HStoreList #
Constructors
HStoreList | |
Fields
|
Instances
Show HStoreList # | |
FromField HStoreList # | hstore |
ToField HStoreList # | |
ToHStore HStoreList # | hstore |
Constructors
HStoreMap | |
Fields
|
toBuilder :: HStoreBuilder -> Builder #
hstore :: (ToHStoreText a, ToHStoreText b) => a -> b -> HStoreBuilder #
class ToHStoreText a where #
Minimal complete definition
Methods
toHStoreText :: a -> HStoreText #
Instances
ToHStoreText ByteString # | Assumed to be UTF-8 encoded |
ToHStoreText ByteString # | Assumed to be UTF-8 encoded |
ToHStoreText Text # | |
ToHStoreText Text # | |
ToHStoreText HStoreText # | |