Hoogle Search

Within LTS Haskell 22.18 (ghc-9.6.4)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. withPostgresqlPool :: (MonadLoggerIO m, MonadUnliftIO m) => ConnectionString -> Int -> (Pool SqlBackend -> m a) -> m a

   persistent-postgresql	Database.Persist.Postgresql

   Create a PostgreSQL connection pool and run the given action. The pool is properly released after the action finishes using it. Note that you should not use the given ConnectionPool outside the action since it may already have been released. The provided action should use runSqlConn and *not* runReaderT because the former brackets the database action with transaction begin/commit.

2. withPostgresqlPoolModified :: (MonadUnliftIO m, MonadLoggerIO m) => (Connection -> IO ()) -> ConnectionString -> Int -> (Pool SqlBackend -> m t) -> m t

   persistent-postgresql	Database.Persist.Postgresql

   Same as withPostgresqlPool, but with the createPostgresqlPoolModified feature.

3. withPostgresqlPoolModifiedWithVersion :: (MonadUnliftIO m, MonadLoggerIO m) => (Connection -> IO (Maybe Double)) -> (Connection -> IO ()) -> ConnectionString -> Int -> (Pool SqlBackend -> m t) -> m t

   persistent-postgresql	Database.Persist.Postgresql

   Same as withPostgresqlPool, but with the createPostgresqlPoolModifiedWithVersion feature.

4. withPostgresqlPoolWithConf :: (MonadUnliftIO m, MonadLoggerIO m) => PostgresConf -> PostgresConfHooks -> (Pool SqlBackend -> m a) -> m a

   persistent-postgresql	Database.Persist.Postgresql

   Same as withPostgresqlPool, but can be configured with PostgresConf and PostgresConfHooks.

5. withPostgresqlPoolWithVersion :: (MonadUnliftIO m, MonadLoggerIO m) => (Connection -> IO (Maybe Double)) -> ConnectionString -> Int -> (Pool SqlBackend -> m a) -> m a

   persistent-postgresql	Database.Persist.Postgresql

   Same as withPostgresPool, but takes a callback for obtaining the server version (to work around an Amazon Redshift bug).

Page 1 of 1