fix for Bug #12849 Stored Procedure: Crash on procedure call with CHAR type 'INOUT' parameter

(recommit with the right Bug#)

1 files changed, 8 insertions, 0 deletions

diff --git a/sql/item.h b/sql/item.h
index f128c72413d..381ba98e193 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -715,9 +715,17 @@ public:
 class Item_splocal : public Item
 {
   uint m_offset;
+
 public:
   LEX_STRING m_name;
 
+  /*
+    Buffer, pointing to the string value of the item. We need it to
+    protect internal buffer from changes. See comment to analogous
+    member in Item_param for more details.
+  */
+  String str_value_ptr;
+
   /* 
     Position of this reference to SP variable in the statement (the
     statement itself is in sp_instr_stmt::m_query).