1 files changed, 11 insertions, 0 deletions
diff --git a/sql/item.h b/sql/item.h
index 8fad8dadf22..1a280e3091f 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -28,6 +28,7 @@
 #include "field.h"                              /* Derivation */
 #include "sql_type.h"
 #include "sql_time.h"
+#include "mem_root_array.h"
 
 C_MODE_START
 #include <ma_dyncol.h>
@@ -3067,6 +3068,10 @@ public:
   bool check_vcol_func_processor(void *int_arg) {return FALSE;}
   Item *get_copy(THD *thd, MEM_ROOT *mem_root) { return 0; }
 
+  bool add_as_clone(THD *thd);
+  void sync_clones();
+  bool register_clone(Item_param *i) { return m_clones.push_back(i); }
+
 private:
   void invalid_default_param() const;
 
@@ -3082,6 +3087,12 @@ public:
 private:
   Send_field *m_out_param_info;
   bool m_is_settable_routine_parameter;
+  /*
+    Array of all references of this parameter marker used in a CTE to its clones
+    created for copies of this marker used the CTE's copies. It's used to
+    synchronize the actual value of the parameter with the values of the clones.
+  */
+  Mem_root_array<Item_param *, true> m_clones;
 };