diff --git a/migrations/000.638.sql b/migrations/000.638.sql
new file mode 100644
index 0000000..207cc60
--- /dev/null
+++ b/migrations/000.638.sql
@@ -0,0 +1,11 @@
+-- Align legacy ancestor view with v2 behavior by excluding root category id = 1.
+CREATE OR REPLACE VIEW v_category_with_ancestors AS
+SELECT c.id,
+      parent.id AS ancestor_id,
+      parent.name
+FROM categories c
+LEFT JOIN categories parent
+      ON parent.lft <= c.lft
+      AND parent.rgt >= c.rgt
+      AND parent.id <> 1
+WHERE c.id <> 1;