+let constr_of_metadata: metadata -> constr = function
+ | `Sort (sort, pos) -> `Sort (sort, [pos])
+ | `Rel pos -> `Rel [pos]
+ | `Obj (uri, pos) -> `Obj (uri, [pos])
+
+ (** the name of the tables in the DB *)
+let sort_tbl_original = "refSort"
+let rel_tbl_original = "refRel"
+let obj_tbl_original = "refObj"
+let name_tbl_original = "objectName"
+let count_tbl_original = "count"
+let hits_tbl_original = "hits"
+
+ (** the names currently used *)
+let sort_tbl_real = ref sort_tbl_original
+let rel_tbl_real = ref rel_tbl_original
+let obj_tbl_real = ref obj_tbl_original
+let name_tbl_real = ref name_tbl_original
+let count_tbl_real = ref count_tbl_original
+
+ (** the exported symbols *)
+let sort_tbl () = ! sort_tbl_real ;;
+let rel_tbl () = ! rel_tbl_real ;;
+let obj_tbl () = ! obj_tbl_real ;;
+let name_tbl () = ! name_tbl_real ;;
+let count_tbl () = ! count_tbl_real ;;
+
+ (** to use the owned tables *)
+let ownerize_tables owner =
+ sort_tbl_real := ( sort_tbl_original ^ "_" ^ owner) ;
+ rel_tbl_real := ( rel_tbl_original ^ "_" ^ owner) ;
+ obj_tbl_real := ( obj_tbl_original ^ "_" ^ owner) ;
+ name_tbl_real := ( name_tbl_original ^ "_" ^ owner);
+ count_tbl_real := ( count_tbl_original ^ "_" ^ owner)
+;;
+
+let library_sort_tbl = sort_tbl_original
+let library_rel_tbl = rel_tbl_original
+let library_obj_tbl = obj_tbl_original
+let library_name_tbl = name_tbl_original
+let library_count_tbl = count_tbl_original
+let library_hits_tbl = hits_tbl_original