diff --git a/app/db_engine.py b/app/db_engine.py
index 85f3f86..8c587ea 100644
--- a/app/db_engine.py
+++ b/app/db_engine.py
@@ -178,6 +178,17 @@ class BaseModel(Model):
     class Meta:
         database = db
 
+    @classmethod
+    def select(cls, *fields):
+        """Override select to add default ordering by id for PostgreSQL compatibility.
+
+        PostgreSQL does not guarantee row order without ORDER BY, unlike SQLite
+        which implicitly returned rows by rowid. This ensures consistent ordering
+        across all queries unless explicitly overridden with .order_by().
+        """
+        query = super().select(*fields)
+        return query.order_by(cls.id)
+
 
 class Current(BaseModel):
     season = IntegerField()
diff --git a/db_engine.py b/db_engine.py
index 03c885b..ebd3046 100644
--- a/db_engine.py
+++ b/db_engine.py
@@ -1,4 +1,11 @@
 import math
+
+"""
+DEPRECATED: This file is a legacy implementation from before the deployment
+of /database/app/. The active codebase is now in /database/app/db_engine.py.
+This file is kept for reference only and should not be used.
+"""
+
 from datetime import datetime
 from typing import List
 import logging