1 files changed, 6 insertions, 0 deletions
diff --git a/sql/item.h b/sql/item.h
index 9186ba084db..8b452c303d6 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -1150,6 +1150,10 @@ public:
   virtual bool eval_not_null_tables(uchar *opt_arg) { return 0; }
   virtual bool clear_sum_processor(uchar *opt_arg) { return 0; }
   virtual bool is_subquery_processor (uchar *opt_arg) { return 0; }
+  virtual bool limit_index_condition_pushdown_processor(uchar *opt_arg)
+  { 
+    return FALSE;
+  }
 
   /* To call bool function for all arguments */
   struct bool_func_call_args
@@ -3885,6 +3889,7 @@ public:
       return false;
     return example->is_expensive_processor(arg);
   }
+  virtual void set_null();
 };
 
 
@@ -4055,6 +4060,7 @@ public:
     DBUG_VOID_RETURN;
   }
   bool cache_value();
+  virtual void set_null();
 };