protection: TRASH in delete

fixed a bug that it discovered


include/my_sys.h:
  move TRASH to my_sys.h from sql_list.h
sql/field.h:
  use TRASH macro
sql/item.h:
  TRASH in delete
sql/item_func.h:
  never delete item's manually!
sql/opt_range.cc:
  TRASH in delete
sql/sql_lex.h:
  TRASH in delete
sql/sql_list.h:
  move TRASH to my_sys.h from sql_list.h
sql/sql_parse.cc:
  don't use properties of deleted objects (even when it's safe)
sql/sql_select.cc:
  TRASH in delete
sql/sql_show.cc:
  TRASH in delete
sql/sql_string.h:
  TRASH in delete

1 files changed, 1 insertions, 1 deletions

diff --git a/sql/opt_range.cc b/sql/opt_range.cc
index 6392a2fee32..ab2eb4fdb72 100644
--- a/sql/opt_range.cc
+++ b/sql/opt_range.cc
@@ -1360,7 +1360,7 @@ public:
   /* Table read plans are allocated on MEM_ROOT and are never deleted */
   static void *operator new(size_t size, MEM_ROOT *mem_root)
   { return (void*) alloc_root(mem_root, (uint) size); }
-  static void operator delete(void *ptr,size_t size) {}
+  static void operator delete(void *ptr,size_t size) { TRASH(ptr, size); }
 };
 
 class TRP_ROR_INTERSECT;