diff --git a/src/pl/ob_pl.cpp b/src/pl/ob_pl.cpp
index 1f29688f8c..ad70296330 100644
--- a/src/pl/ob_pl.cpp
+++ b/src/pl/ob_pl.cpp
@@ -584,12 +584,14 @@ int ObPLContext::init(ObSQLSessionInfo &session_info,
       routine->get_has_parallel_affect_factor()) {
     // 并行场景下不能创建stash savepoint, 只有当udf/trigger内部有tcl语句时, stash savepoint才有意义
     // udf内部有tcl语句时，该标记为true
-    last_insert_id_ = session_info.get_local_last_insert_id();
     const ObString stash_savepoint_name("PL stash savepoint");
     OZ (ObSqlTransControl::create_stash_savepoint(ctx, stash_savepoint_name));
     OX (has_stash_savepoint_ = true);
   }
-  if (is_autonomous_) {
+  if (OB_SUCC(ret) && is_function_or_trigger && lib::is_mysql_mode()) {
+    last_insert_id_ = session_info.get_local_last_insert_id();
+  }
+  if (OB_SUCC(ret) && is_autonomous_) {
     has_inner_dml_write_ = session_info.has_exec_inner_dml();
     session_info.set_has_exec_inner_dml(false);
 
diff --git a/src/sql/resolver/ob_resolver_utils.cpp b/src/sql/resolver/ob_resolver_utils.cpp
index c2bdc01256..582697f153 100644
--- a/src/sql/resolver/ob_resolver_utils.cpp
+++ b/src/sql/resolver/ob_resolver_utils.cpp
@@ -6495,6 +6495,10 @@ int ObResolverUtils::set_parallel_info(sql::ObSQLSessionInfo &session_info,
       OZ (schema_guard.get_routine_info(tenant_id,
                                         udf_raw_expr.get_udf_id(),
                                         routine_info));
+      if (OB_FAIL(ret)) {
+        ret = OB_ERR_PRIVATE_UDF_USE_IN_SQL;
+        LOG_WARN("function 'string' may not be used in SQL", K(ret), K(udf_raw_expr));
+      }
     }
 
     if (OB_SUCC(ret) && OB_NOT_NULL(routine_info)) {