Reference to field in outer subelect fixed

Fixed context in error mesages


mysql-test/r/subselect.result:
  tests of references and error message
mysql-test/t/subselect.test:
  tests of references and error message
sql/item.cc:
  Fixed layout
  Resolving field names of outer select
sql/item_subselect.cc:
  saving/restoring context for error messages
sql/mysql_priv.h:
  changed function interface to allow resolving field names inside Item_ref::fix_fields
sql/sql_base.cc:
  changed function interface to allow resolving field names inside Item_ref::fix_fields
sql/sql_lex.h:
  allow access to thd field

1 files changed, 1 insertions, 0 deletions

diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index dd41af4b250..53bd0c0489a 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -294,6 +294,7 @@ public:
   int cleanup();
   
   friend void mysql_init_query(THD *thd);
+  friend int subselect_union_engine::exec();
 private:
   bool create_total_list_n_last_return(THD *thd, st_lex *lex,
 				       TABLE_LIST ***result);