diff --git a/vue-fastapi-backend/module_admin/service/metasecurity_service.py b/vue-fastapi-backend/module_admin/service/metasecurity_service.py
index a62b2a4..73c67f1 100644
--- a/vue-fastapi-backend/module_admin/service/metasecurity_service.py
+++ b/vue-fastapi-backend/module_admin/service/metasecurity_service.py
@@ -438,7 +438,8 @@ class MetaSecurityService:
 
         try:
             async with async_session() as session:
-                await session.execute(text("SET statement_timeout = 30000"))
+                if (db_type or "").upper() == "POSTGRESQL":
+                    await session.execute(text("SET statement_timeout = 30000"))
             # ⭐ 原始数量
                 if sql_type == "原始结果":
                     count_sql = cls.build_count_sql(sql_query,db_type)
@@ -474,6 +475,7 @@ class MetaSecurityService:
         if select:
             select.set("order", None)
             select.set("limit", None)
+            select.set("offset", None)
     
         cleaned_sql = parsed.sql(dialect=dialect)
         return f"SELECT COUNT(*) AS cnt FROM ({cleaned_sql}) t"
@@ -495,7 +497,7 @@ class MetaSecurityService:
             elif db_type.lower() == "mysql":
                 # MySQL: 直接查询表字段（MySQL 没有 schema 的概念）
                 query = f"""
-                    SELECT COLUMN_NAME 
+                    SELECT COLUMN_NAME AS column_name
                     FROM INFORMATION_SCHEMA.COLUMNS 
                     WHERE TABLE_NAME = '{table}'
                 """