From e3d3e20dfea253de291d5b31059cd55c0eaabf02 Mon Sep 17 00:00:00 2001
From: Marcos Magueta <maguetamarcos@gmail.com>
Date: Mon, 11 May 2026 23:10:27 -0300
Subject: Multigroup unified reference for hierarchical access

---
 lib/drl_verified/drl_verified.ml  | 67 ---------------------------------------
 lib/drl_verified/drl_verified.mli | 23 --------------
 2 files changed, 90 deletions(-)
 delete mode 100644 lib/drl_verified/drl_verified.ml
 delete mode 100644 lib/drl_verified/drl_verified.mli

(limited to 'lib/drl_verified')

diff --git a/lib/drl_verified/drl_verified.ml b/lib/drl_verified/drl_verified.ml
deleted file mode 100644
index 868af2a..0000000
--- a/lib/drl_verified/drl_verified.ml
+++ /dev/null
@@ -1,67 +0,0 @@
-(** val eqb : char list -> char list -> bool **)
-
-let rec eqb s1 s2 =
-  match s1 with
-  | [] -> ( match s2 with [] -> true | _ :: _ -> false)
-  | c1 :: s1' -> (
-      match s2 with
-      | [] -> false
-      | c2 :: s2' -> if c1 = c2 then eqb s1' s2' else false)
-
-type attr_name = char list
-type relation = { rel_name : char list; rel_finite : bool }
-type database = (char list * relation) list
-
-(** val db_lookup : char list -> database -> relation option **)
-
-let rec db_lookup name = function
-  | [] -> None
-  | p :: rest ->
-      let n, r = p in
-      if eqb name n then Some r else db_lookup name rest
-
-type literal = LitInt of int | LitStr of char list | LitBool of bool
-
-type query =
-  | Base of char list
-  | Const of (attr_name * literal) list
-  | Select of query * query
-  | Join of attr_name list * query * query
-  | Cartesian of query * query
-  | Project of attr_name list * query
-  | Rename of (attr_name * attr_name) list * query
-  | Union of query * query
-  | Diff of query * query
-  | Take of int * query
-
-(** val predicted_finite : database -> query -> bool option **)
-
-let rec predicted_finite db = function
-  | Base name -> (
-      match db_lookup name db with Some r -> Some r.rel_finite | None -> None)
-  | Select (_, source) -> predicted_finite db source
-  | Join (_, q1, q2) -> (
-      match predicted_finite db q1 with
-      | Some f1 -> (
-          match predicted_finite db q2 with
-          | Some f2 -> Some (f1 && f2)
-          | None -> None)
-      | None -> None)
-  | Cartesian (q1, q2) -> (
-      match predicted_finite db q1 with
-      | Some f1 -> (
-          match predicted_finite db q2 with
-          | Some f2 -> Some (f1 && f2)
-          | None -> None)
-      | None -> None)
-  | Project (_, q0) -> predicted_finite db q0
-  | Rename (_, q0) -> predicted_finite db q0
-  | Union (q1, q2) -> (
-      match predicted_finite db q1 with
-      | Some f1 -> (
-          match predicted_finite db q2 with
-          | Some f2 -> Some (f1 && f2)
-          | None -> None)
-      | None -> None)
-  | Diff (q1, _) -> predicted_finite db q1
-  | _ -> Some true
diff --git a/lib/drl_verified/drl_verified.mli b/lib/drl_verified/drl_verified.mli
deleted file mode 100644
index dac930e..0000000
--- a/lib/drl_verified/drl_verified.mli
+++ /dev/null
@@ -1,23 +0,0 @@
-val eqb : char list -> char list -> bool
-
-type attr_name = char list
-type relation = { rel_name : char list; rel_finite : bool }
-type database = (char list * relation) list
-
-val db_lookup : char list -> database -> relation option
-
-type literal = LitInt of int | LitStr of char list | LitBool of bool
-
-type query =
-  | Base of char list
-  | Const of (attr_name * literal) list
-  | Select of query * query
-  | Join of attr_name list * query * query
-  | Cartesian of query * query
-  | Project of attr_name list * query
-  | Rename of (attr_name * attr_name) list * query
-  | Union of query * query
-  | Diff of query * query
-  | Take of int * query
-
-val predicted_finite : database -> query -> bool option
-- 
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