Merge

mysql-test/r/subselect.result:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_subselect.h:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_select.h:
  Auto merged
sql/item_subselect.cc:
  SCCS merged

1 files changed, 5 insertions, 2 deletions

diff --git a/sql/sql_select.h b/sql/sql_select.h
index cdf528060f7..24854713a0e 100644
--- a/sql/sql_select.h
+++ b/sql/sql_select.h
@@ -131,6 +131,7 @@ class JOIN :public Sql_alloc
 {
  public:
   JOIN_TAB *join_tab,**best_ref,**map2table;
+  JOIN_TAB *join_tab_save; //saved join_tab for subquery reexecution
   TABLE    **table,**all_tables,*sort_by_table;
   uint	   tables,const_tables;
   uint	   send_group_parts;
@@ -204,7 +205,7 @@ class JOIN :public Sql_alloc
   void init(THD *thd_arg, List<Item> &fields, ulong select_options_arg,
        select_result *result_arg)
   {
-    join_tab= 0;
+    join_tab= join_tab_save= 0;
     table= 0;
     tables= 0;
     const_tables= 0;
@@ -243,7 +244,7 @@ class JOIN :public Sql_alloc
     zero_result_cause= 0;
     optimized= 0;
 
-    fields_list = fields;
+    fields_list= fields;
     bzero((char*) &keyuse,sizeof(keyuse));
     tmp_table_param.copy_field=0;
     tmp_table_param.end_write_records= HA_POS_ERROR;
@@ -280,7 +281,9 @@ class JOIN :public Sql_alloc
 			  Item_sum ***func);
   int rollup_send_data(uint idx);
   bool test_in_subselect(Item **where);
+  void join_free(bool full);
   void clear();
+  bool save_join_tab();
 };