subselect.result, subselect.test:

  Added a test case for bug #9338.
sql_select.cc:
  Fixed bug #9338.
  When an occurence of a field reference has to be replaced
  by another field reference the whole Item_field must be
  replaced.
item.cc:
  Fixed bug #9338.
  The method Item_field::replace_equal_field_processor was
  replaced by Item_field::replace_equal_field. The new method
  is used to replace the occurences of Item_field objects.
item.h:
  Fixed bug #9338.
  The virtual function replace_equal_field_processor was replaced
  by replace_equal_field. The latter is supposed to be used as a
  callback function in calls of the method transform.


sql/item.h:
  Fixed bug #9338.
  The virtual function replace_equal_field_processor was replaced
  by replace_equal_field. The latter is supposed to be used as a
  callback function in calls of the method transform.
sql/item.cc:
  The method Item_field::replace_equal_field_processor was
  replaced by Item_field::replace_equal_field The new method
  is used to replace the occurences of Item_field objects.
sql/sql_select.cc:
  Fixed bug #9338.
  When an occurence of a field reference has to be replaced
  by another field reference the whole Item_field must be
  replaced.
mysql-test/t/subselect.test:
  Added a test case for bug #9338.
mysql-test/r/subselect.result:
  Added a test case for bug #9338.

1 files changed, 2 insertions, 2 deletions

diff --git a/sql/item.h b/sql/item.h
index f4ca292e574..33c7a164c5b 100644
--- a/sql/item.h
+++ b/sql/item.h
@@ -520,7 +520,7 @@ public:
   virtual bool collect_item_field_processor(byte * arg) { return 0; }
   virtual Item *equal_fields_propagator(byte * arg) { return this; }
   virtual Item *set_no_const_sub(byte *arg) { return this; }
-  virtual bool replace_equal_field_processor(byte * arg) { return 0; }
+  virtual Item *replace_equal_field(byte * arg) { return this; }
   
   virtual Item *this_item() { return this; } /* For SPs mostly. */
   virtual Item *this_const_item() const { return const_cast<Item*>(this); } /* For SPs mostly. */
@@ -750,7 +750,7 @@ public:
   Item_equal *find_item_equal(COND_EQUAL *cond_equal);
   Item *equal_fields_propagator(byte *arg);
   Item *set_no_const_sub(byte *arg);
-  bool replace_equal_field_processor(byte *arg);
+  Item *replace_equal_field(byte *arg);
   inline uint32 max_disp_length() { return field->max_length(); }
   Item_field *filed_for_view_update() { return this; }
   Item *safe_charset_converter(CHARSET_INFO *tocs);