memory leacks in PS with subqueries fixed (adddition to fix of BUG#2462)

sql/item.h:
  mechanism to keep reference in cache array for row IN
sql/item_cmpfunc.cc:
  mechanism to keep reference in cache array for row IN
  layout fixed
sql/item_cmpfunc.h:
  mechanism to keep reference in cache array for row IN
sql/item_subselect.cc:
  fixed memory pools swapping
  prevented deleting Item_in_optimizer cache in case of row IN subquery
sql/mysql_priv.h:
  declarations of function moved to be useful in sql_class.h
sql/sql_base.cc:
  keep fields expanded from '*' in statement memory pool
sql/sql_class.cc:
  fixed restoring/backup of memory pool and list of items
sql/sql_class.h:
  memory allocation methods moved to Statement
  memory pool substituting for preparing
sql/sql_lex.cc:
  ref_pointer_array kept in statement memory
sql/sql_lex.h:
  reinitialization of UNIT
sql/sql_prepare.cc:
  memory allocation/swapping fixed
tests/client_test.c:
  layout fixed

1 files changed, 1 insertions, 0 deletions

diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index 1cfd5312722..17cccd75697 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -355,6 +355,7 @@ public:
   int prepare(THD *thd, select_result *result, ulong additional_options);
   int exec();
   int cleanup();
+  inline void unclean() { cleaned= 0; }
   void reinit_exec_mechanism();
 
   bool check_updateable(char *db, char *table);