* http://cs.unibo.it/helm/.
*)
-(******************************************************************************)
-(* *)
-(* PROJECT HELM *)
-(* *)
-(* Ferruccio Guidi <fguidi@cs.unibo.it> *)
-(* 06/01/2003 *)
-(* *)
-(* *)
-(******************************************************************************)
+val init : unit -> Postgres.connection option
+val close : Postgres.connection option -> unit
-val init : unit -> unit
-
-val close : unit -> unit
-
-val check : unit -> bool
-
-val exec : string -> string list list
+val exec : Postgres.connection option -> string -> string list list
val quote : string -> string