From e32ba6294781691846c3ab19281fe977350b4d0f Mon Sep 17 00:00:00 2001
From: Marcos Magueta <maguetamarcos@gmail.com>
Date: Sat, 26 Sep 2026 15:30:53 -0300
Subject: preparation cleanup for RNT integration

---
 lib/hashing.ml | 52 ----------------------------------------------------
 1 file changed, 52 deletions(-)
 delete mode 100644 lib/hashing.ml

(limited to 'lib/hashing.ml')

diff --git a/lib/hashing.ml b/lib/hashing.ml
deleted file mode 100644
index cc4bf10..0000000
--- a/lib/hashing.ml
+++ /dev/null
@@ -1,52 +0,0 @@
-(** Hash computation for tuples and relations.
-
-    This module provides content-addressable hashing for the relational engine.
-    All hashes are deterministic - the same content always produces the same
-    hash. This enables:
-    - Deduplication of tuples
-    - Merkle tree construction for relations and databases
-    - Time-travel queries (load any historical state by hash) *)
-
-(** Convert bytes to hex string (to avoid null bytes in hash input) *)
-let bytes_to_hex bytes =
-  let len = Bytes.length bytes in
-  let hex = Bytes.create (len * 2) in
-  for i = 0 to len - 1 do
-    let c = Bytes.get_uint8 bytes i in
-    let hi = c lsr 4 in
-    let lo = c land 0xf in
-    Bytes.set hex (i * 2) (Char.chr (if hi < 10 then hi + 48 else hi + 87));
-    Bytes.set hex ((i * 2) + 1) (Char.chr (if lo < 10 then lo + 48 else lo + 87))
-  done;
-  Bytes.to_string hex
-
-(** Compute hash for a tuple. The hash is computed from:
-    - The relation name
-    - All attribute names and their marshalled values (sorted by name for
-      determinism) *)
-let hash_tuple (tuple : Tuple.materialized) : Conventions.Hash.t =
-  let sorted_attrs =
-    Tuple.AttributeMap.bindings tuple.attributes
-    |> List.sort (fun (a, _) (b, _) -> String.compare a b)
-  in
-  let content =
-    List.fold_left
-      (fun acc (name, attr) ->
-        (* Marshal the value and hex-encode to avoid null bytes *)
-        let value_bytes = Marshal.to_bytes attr.Attribute.value [Marshal.Closures] in
-        let value_hex = bytes_to_hex value_bytes in
-        acc ^ name ^ ":" ^ value_hex ^ ";" )
-      (tuple.relation ^ "|") sorted_attrs
-  in
-  Conventions.Hash.hash_text content
-
-(** Compute hash for a relation. The hash is computed from:
-    - The relation name
-    - The schema (attribute names and types)
-    - The merkle tree root hash (representing all tuples) *)
-(* let hash_relation ~name ~(schema : Schema.t) ~tree : Conventions.Hash.t =
-  let schema_str = Schema.to_string schema in
-  let tree_hash =
-    match Merkle.root_hash tree with Some h -> h | None -> "empty"
-  in
-  Conventions.Hash.hash_text (name ^ "|" ^ schema_str ^ "|" ^ tree_hash) *)
-- 
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