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diff --git a/helm/ocaml/mathql_interpreter/mQIConn.ml b/helm/ocaml/mathql_interpreter/mQIConn.ml
deleted file mode 100644
index 11dbd1674..000000000
--- a/helm/ocaml/mathql_interpreter/mQIConn.ml
+++ /dev/null
@@ -1,102 +0,0 @@
-(* Copyright (C) 2000, HELM Team.
- * 
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- * 
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- * 
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA  02111-1307, USA.
- * 
- * For details, see the HELM World-Wide-Web page,
- * http://cs.unibo.it/helm/.
- *)
-
-(*  AUTOR: Ferruccio Guidi <fguidi@cs.unibo.it>
- *)
-
-type flag = Postgres | Galax | Stat | Quiet | Warn | Log
-
-type handle = {
-   log : string -> unit;             (* logging function        *)
-   set : flag list;                  (* options                 *)
-   pgc : Postgres.connection option; (* PG connection           *)
-   pgm : MQIMap.pg_map;              (* PG conversion function  *)
-   pga : MQIMap.pg_alias             (* PG table aliases        *)
-}
-
-let tables handle p = MQIMap.get_tables handle.pgm p
-
-let field handle p t = MQIMap.get_field handle.pgm p t
-
-let resolve handle a = MQIMap.resolve handle.pga a
-
-let log handle = handle.log
-
-let set handle flag = List.mem flag handle.set
-
-let pgc handle = handle.pgc 
-
-let flags handle = handle.set 
-
-let string_of_flag = function
-      | Postgres -> "P"
-      | Galax    -> "G"
-      | Stat     -> "S"
-      | Quiet    -> "Q"
-      | Warn     -> "W"
-      | Log      -> "L"
-
-let flag_of_char = function
-      | 'P' -> [Postgres]
-      | 'G' -> [Galax]
-      | 'S' -> [Stat]
-      | 'Q' -> [Quiet] 
-      | 'W' -> [Warn] 
-      | 'L' -> [Log]
-      | _   -> []
-
-let string_fold_left f a s =
-   let l = String.length s in
-   let rec aux b i = if i = l then b else aux (f b s.[i]) (succ i) in 
-   aux a 0
-
-let string_of_flags flags =
-   List.fold_left (fun s flag -> s ^ string_of_flag flag) "" flags
-
-let flags_of_string s =
-   string_fold_left (fun l c -> l @ flag_of_char c) [] s
-
-let init myflags mylog =
-   let s, m, a =
-      let g = 
-         if List.mem Galax myflags 
-	    then MQIMap.empty_map else MQIMap.read_map
-      in g ()
-   in
-   {log = mylog; set = myflags; 
-    pgc = if List.mem Galax myflags then None else MQIPostgres.init s;
-    pgm = m; pga = a
-   }	   
-
-let close handle =
-   if set handle Galax then () else MQIPostgres.close handle.pgc
-
-let connected handle =
-   if set handle Galax then false else (pgc handle) <> None  
-
-let init_if_connected myflags mylog =
-   let handle = init myflags mylog in
-   ignore (pgc handle); handle
-