diff --git a/src/share/schema/ob_schema_mgr_cache.cpp b/src/share/schema/ob_schema_mgr_cache.cpp
index 86c3f890d3..432ececa9c 100644
--- a/src/share/schema/ob_schema_mgr_cache.cpp
+++ b/src/share/schema/ob_schema_mgr_cache.cpp
@@ -372,6 +372,8 @@ static const char* ref_info_type_strs[] = {
   "DIS_TASK_SPLITER",
   "DAS_CTX",
   "SCHEMA_RECORDER",
+  "SPI_RESULT_SET",
+  "PL_PREPARE_RESULT",
   "MOD_MAX",
 };
 
diff --git a/src/share/schema/ob_schema_mgr_cache.h b/src/share/schema/ob_schema_mgr_cache.h
index 7763bc77c0..bde7669e05 100644
--- a/src/share/schema/ob_schema_mgr_cache.h
+++ b/src/share/schema/ob_schema_mgr_cache.h
@@ -23,13 +23,13 @@ namespace oceanbase
 class ObSchemaSlot
 {
 public:
-  ObSchemaSlot(): tenant_id_(OB_INVALID_TENANT_ID), slot_id_(OB_INVALID_INDEX), 
-                  schema_version_(OB_INVALID_VERSION), schema_count_(OB_INVALID_COUNT), 
+  ObSchemaSlot(): tenant_id_(OB_INVALID_TENANT_ID), slot_id_(OB_INVALID_INDEX),
+                  schema_version_(OB_INVALID_VERSION), schema_count_(OB_INVALID_COUNT),
                   ref_cnt_(OB_INVALID_COUNT), mod_ref_infos_() {}
   ~ObSchemaSlot() {}
   void reset();
-  void init(const uint64_t &tenant_id, const int64_t &slot_id, 
-            const int64_t &schema_version, const int64_t &schema_count, 
+  void init(const uint64_t &tenant_id, const int64_t &slot_id,
+            const int64_t &schema_version, const int64_t &schema_count,
             const int64_t &ref_cnt, const common::ObString &str);
   uint64_t get_tenant_id() const { return tenant_id_; }
   int64_t get_slot_id() const { return slot_id_; }
@@ -37,7 +37,7 @@ public:
   int64_t get_schema_count() const { return schema_count_; }
   int64_t get_ref_cnt() const { return ref_cnt_;}
   const common::ObString& get_mod_ref_infos() const { return mod_ref_infos_; }
-  TO_STRING_KV(K_(tenant_id), K_(slot_id), K_(schema_version), 
+  TO_STRING_KV(K_(tenant_id), K_(slot_id), K_(schema_version),
                K_(schema_count), K_(ref_cnt), K_(mod_ref_infos));
 private:
   uint64_t tenant_id_;
@@ -46,7 +46,7 @@ private:
   int64_t schema_count_;
   int64_t ref_cnt_;
   common::ObString mod_ref_infos_;
-}; 
+};
 namespace common
 {
 }
@@ -89,6 +89,8 @@ struct ObSchemaMgrItem
     MOD_DIS_TASK_SPLITER     = 26,
     MOD_DAS_CTX              = 27,
     MOD_SCHEMA_RECORDER      = 28,
+    MOD_SPI_RESULT_SET       = 29,
+    MOD_PL_PREPARE_RESULT    = 30,
     MOD_MAX
   };
   ObSchemaMgrItem()
@@ -142,7 +144,7 @@ public:
           const ObSchemaMgr *&schema_mgr,
           ObSchemaMgrHandle &handle);
   int get_recycle_schema_version(int64_t &schema_version) const;
-  int get_slot_info(common::ObIAllocator &allocator, 
+  int get_slot_info(common::ObIAllocator &allocator,
                     common::ObIArray<ObSchemaSlot> &tenant_slot_infos);
   int put(ObSchemaMgr *schema_mgr,
           ObSchemaMgr *&eli_schema_mgr,
@@ -157,7 +159,7 @@ private:
   // need process in wlock
   int try_update_latest_schema_idx();
   int get_ref_info_type_str_(const int64_t &index, const char *&type_str);
-  int build_ref_mod_infos_(const int64_t *mod_ref, char *&buff, 
+  int build_ref_mod_infos_(const int64_t *mod_ref, char *&buff,
                            const int64_t &buf_len, common::ObString &str);
 private:
   DISALLOW_COPY_AND_ASSIGN(ObSchemaMgrCache);
diff --git a/src/sql/ob_spi.h b/src/sql/ob_spi.h
index 6462586197..b495ae5bd1 100644
--- a/src/sql/ob_spi.h
+++ b/src/sql/ob_spi.h
@@ -106,7 +106,7 @@ public:
       allocator_(ObModIds::OB_PL_TEMP),
       result_set_(NULL),
       sql_ctx_(),
-      schema_guard_(),
+      schema_guard_(share::schema::ObSchemaMgrItem::MOD_SPI_RESULT_SET),
       orign_nested_count_(-1),
       cursor_nested_count_(-1),
       orign_session_value_(NULL),
@@ -272,7 +272,7 @@ public:
         mem_context_(nullptr),
         mem_context_destroy_guard_(mem_context_),
         sql_ctx_(),
-        schema_guard_() {}
+        schema_guard_(share::schema::ObSchemaMgrItem::MOD_PL_PREPARE_RESULT) {}
     ~PLPrepareResult() { reset(); }
     int init(sql::ObSQLSessionInfo &session_info);
     void reset()