From 3184f85de1dac7071afcf9838dfc3f8609b20a5a Mon Sep 17 00:00:00 2001
From: Marcos Magueta <maguetamarcos@gmail.com>
Date: Sun, 20 Sep 2026 03:00:57 -0300
Subject: provenance

---
 lib/protocols/Schematics.ml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/protocols/Schematics.ml')

diff --git a/lib/protocols/Schematics.ml b/lib/protocols/Schematics.ml
index d2e50ad..49d8586 100644
--- a/lib/protocols/Schematics.ml
+++ b/lib/protocols/Schematics.ml
@@ -1,5 +1,7 @@
 type multigroup_description = string BatMap.String.t
-type relation_description = string BatMap.String.t
+type origin = {source: string list; attribute: string}
+type attribute_description = {domain: string; provenance: origin list}
+type relation_description = attribute_description BatMap.String.t
 type tuple_description = {relation: relation_description; attributes: string BatMap.String.t}
 
 (* TODO: For now the description is completely detached from actual
-- 
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