remove id subsort

main.go

@@ -344,7 +344,7 @@ SELECT org_id, id, modified_on, is_active, row_to_json(t) FROM(
     ) as fields
     FROM contacts_contact
 	WHERE is_test = FALSE and modified_on >= $1
-	ORDER BY modified_on ASC, id ASC
+	ORDER BY modified_on ASC
 	LIMIT 10000
 ) t
 `