1 files changed, 3 insertions, 0 deletions
diff --git a/sql/opt_range.h b/sql/opt_range.h
index 1e3008d78aa..a7691c88685 100644
--- a/sql/opt_range.h
+++ b/sql/opt_range.h
@@ -271,6 +271,7 @@ public:
 
   virtual bool reverse_sorted() = 0;
   virtual bool unique_key_range() { return false; }
+  virtual bool clustered_pk_range() { return false; }
 
   enum {
     QS_TYPE_RANGE = 0,
@@ -541,6 +542,8 @@ public:
   THD *thd;
   int read_keys_and_merge();
 
+  bool clustered_pk_range() { return test(pk_quick_select); }
+
   /* used to get rows collected in Unique */
   READ_RECORD read_record;
 };