fixed subqueries name resolution with INSERT/REPLACE (found during bug 446 investigation)

mysql-test/r/subselect.result:
  subselect test changed
mysql-test/t/subselect.test:
  INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(x) FROM t2));
sql/item.cc:
  avoid resolving of INSER/REPLACE tables field in subqueries
sql/sql_lex.cc:
  Primary (top) simple INSERT/REPLACE st_select_lex indicator
sql/sql_lex.h:
  Primary (top) simple INSERT/REPLACE st_select_lex indicator
sql/sql_yacc.yy:
  Primary (top) simple INSERT/REPLACE st_select_lex indicator

1 files changed, 8 insertions, 0 deletions

diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index f31b3305e07..5f6ae02cca3 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -352,6 +352,14 @@ public:
   bool  braces;   	/* SELECT ... UNION (SELECT ... ) <- this braces */
   /* TRUE when having fix field called in processing of this SELECT */
   bool having_fix_field;
+  /* 
+     TRUE for primary st_select_lex structure of simple INSERT/REPLACE
+     (used for name resolution, see Item_fiels & Item_ref fix_fields,
+     FALSE for INSERT/REPLACE ... SELECT, because it's
+     st_select_lex->table_list will be preprocessed (first table removed)
+     before passing to handle_select)
+  */
+  bool insert_select;
 
   void init_query();
   void init_select();