Add a migration script to make existing property names unique (#719)

migrations/20240910115224_make_json_str_name_unique_per_user/migration.sql

@@ -0,0 +1,21 @@
+-- Update records with duplicate names for the same user
+UPDATE "Model"
+SET json_str = jsonb_set(
+    json_str::jsonb,
+    '{name}',
+    -- Append a random 5-digit suffix to the name
+    to_jsonb(json_str->>'name' || '_' || LPAD(FLOOR(RANDOM() * 100000)::text, 5, '0'))
+)
+-- Select records with duplicate names
+WHERE (user_uuid, json_str->>'name') IN (
+    SELECT user_uuid, json_str->>'name'
+    FROM "Model"
+    GROUP BY user_uuid, json_str->>'name'
+    HAVING COUNT(*) > 1
+)
+-- Exclude the first occurrence of each duplicate set
+AND uuid NOT IN (
+    SELECT DISTINCT ON (user_uuid, json_str->>'name') uuid
+    FROM "Model"
+    ORDER BY user_uuid, json_str->>'name', created_at
+);