diff --git a/src/storage/tx/wrs/ob_black_list.cpp b/src/storage/tx/wrs/ob_black_list.cpp
index 3470bd7a09..8f809fa6fd 100644
--- a/src/storage/tx/wrs/ob_black_list.cpp
+++ b/src/storage/tx/wrs/ob_black_list.cpp
@@ -293,25 +293,27 @@ int ObBLService::get_info_from_result_(sqlclient::ObMySQLResult &result, ObBLKey
   int64_t tenant_id = 0;
   int64_t id = ObLSID::INVALID_LS_ID;
   int64_t ls_role = -1;
-  uint64_t weak_read_scn_uint = 0;
+  int64_t weak_read_scn = 0;
   int64_t migrate_status_int = -1;
+  common::number::ObNumber weak_read_number;
 
   (void)GET_COL_IGNORE_NULL(result.get_varchar, "svr_ip", ip);
   (void)GET_COL_IGNORE_NULL(result.get_int, "svr_port", port);
   (void)GET_COL_IGNORE_NULL(result.get_int, "tenant_id", tenant_id);
   (void)GET_COL_IGNORE_NULL(result.get_int, "ls_id", id);
   (void)GET_COL_IGNORE_NULL(result.get_int, "role", ls_role);
-  (void)GET_COL_IGNORE_NULL(result.get_uint, "weak_read_scn", weak_read_scn_uint);
+  (void)GET_COL_IGNORE_NULL(result.get_number, "weak_read_scn", weak_read_number);
   (void)GET_COL_IGNORE_NULL(result.get_int, "migrate_status", migrate_status_int);
 
   ObLSID ls_id(id);
   common::ObAddr server;
-  int64_t weak_read_scn = static_cast<int64_t>(weak_read_scn_uint);
   ObMigrateStatus migrate_status = ObMigrateStatus(migrate_status_int);
 
   if (false == server.set_ip_addr(ip, static_cast<uint32_t>(port))) {
     ret = OB_ERR_UNEXPECTED;
     TRANS_LOG(WARN, "invalid server address", K(ip), K(port));
+  } else if (OB_FAIL(weak_read_number.cast_to_int64(weak_read_scn))) {
+    TRANS_LOG(WARN, "failed to cast int", K(ret), K(weak_read_number));
   } else if (OB_FAIL(bl_key.init(server, tenant_id, ls_id))) {
     TRANS_LOG(WARN, "bl_key init fail", K(server), K(tenant_id), K(ls_id));
   } else if (OB_FAIL(ls_info.init(ls_role, weak_read_scn, migrate_status))) {
diff --git a/src/storage/tx/wrs/ob_black_list.h b/src/storage/tx/wrs/ob_black_list.h
index e69b974a33..daf57de6d2 100644
--- a/src/storage/tx/wrs/ob_black_list.h
+++ b/src/storage/tx/wrs/ob_black_list.h
@@ -31,7 +31,8 @@
 
 // 查询 __all_virtual_ls_info 的语句，设置了2s超时时间
 #define BLACK_LIST_SELECT_LS_INFO_STMT \
-  "select /*+query_timeout(2000000)*/ a.svr_ip, a.svr_port, a.tenant_id, a.ls_id, a.role, nvl(b.weak_read_scn, 1), nvl(b.migrate_status, 0) \
+  "select /*+query_timeout(2000000)*/ a.svr_ip, a.svr_port, a.tenant_id, a.ls_id, a.role, \
+  nvl(b.weak_read_scn, 1) as weak_read_scn, nvl(b.migrate_status, 0) as migrate_status \
   from oceanbase.__all_virtual_ls_meta_table a left join oceanbase.__all_virtual_ls_info b \
   on a.svr_ip = b.svr_ip and a.svr_port = b.svr_port and a.tenant_id = b.tenant_id and a.ls_id = b.ls_id;"