postmerge 4.1->5.0 fixes

mysql-test/r/group_by.result:
  result change
mysql-test/r/union.result:
  result change
mysql-test/r/view.result:
  result change
mysql-test/t/subselect.test:
  fixed mistake of merge
sql/field.cc:
  new 5.0 types support
  temporary table/db names detection in field fixed
sql/field.h:
  removed non-existent methods
  added wrongly deleted during manual merge string
sql/item.cc:
  support of new types added to merge of union types routines
sql/item.h:
  fixed method definition
sql/item_cmpfunc.cc:
  fixed type
sql/item_func.h:
  item type name fixed
sql/item_subselect.cc:
  added forgoten methods
sql/item_subselect.h:
  fixed type
sql/sql_derived.cc:
  fixed typo of manual merge
sql/sql_view.cc:
  added new parameter

1 files changed, 3 insertions, 1 deletions

diff --git a/sql/item_subselect.h b/sql/item_subselect.h
index e12c45b6e13..da13e98f5f4 100644
--- a/sql/item_subselect.h
+++ b/sql/item_subselect.h
@@ -179,7 +179,7 @@ public:
 class Item_exists_subselect :public Item_subselect
 {
 protected:
-  longlong value; /* value of this item (boolean: exists/not-exists) */
+  bool value; /* value of this item (boolean: exists/not-exists) */
 
 public:
   Item_exists_subselect(st_select_lex *select_lex);
@@ -243,6 +243,8 @@ public:
   longlong val_int();
   double val_real();
   String *val_str(String*);
+  my_decimal *val_decimal(my_decimal *);
+  bool val_bool();
   void top_level_item() { abort_on_null=1; }
   bool test_limit(st_select_lex_unit *unit);
   void print(String *str);