diff --git a/conf/db_schema.py b/conf/db_schema.py
index 726e444..2a06911 100644
--- a/conf/db_schema.py
+++ b/conf/db_schema.py
@@ -12,17 +12,8 @@ with open(CONFIG_PATH, 'r', encoding='utf-8') as f:
 table_prefix = cfg.get('table_prefix', '')
 tables = cfg.get('tables', {})
 
-def get_full_table_name(key):
-    name_in_cfg = tables.get(key, '')
-    if name_in_cfg:
-        if name_in_cfg.startswith(table_prefix):
-            return name_in_cfg
-        else:
-            return table_prefix + name_in_cfg
-    else:
-        return table_prefix + key
-
 metadata = MetaData()
+default_mysql_opts = dict(mysql_engine='InnoDB', mysql_charset='utf8mb4')
 
 def get_full_table_name(key):
     # config.yaml에서 tables: 항목의 실제 테이블명 가져오기