bzr push into mysql-trunk branch (tor.didriksen:3941 to 3942)

[Tor Didriksen]

 3942 Tor Didriksen	2012-02-22
      fix memory leak in unit test

    modified:
      unittest/gunit/opt_range-t.cc
 3941 Tor Didriksen	2012-02-22
      Bug#13724099 1032 BYTE MEMORY LEAK NEW_CACHED_ITEM IN SUBQUERY WITH GROUPING OF OUTER COLUMN
      
      JOIN::cleanup didn't run delete_elements on the group_fileds list.
     @ sql/sql_list.h
        Add bool base_ilist::operator==(const base_list &rhs) const
        Cleanup code which was commented out.
     @ sql/sql_select.cc
        tmp_join->group_fields was emptied without running delete_elements().
        Rewrote the logic for avoiding double-delete on the list.

    modified:
      mysql-test/r/func_group.result
      mysql-test/t/func_group.test
      sql/sql_list.h
      sql/sql_select.cc
=== modified file 'unittest/gunit/opt_range-t.cc'
--- a/unittest/gunit/opt_range-t.cc	2012-02-09 11:22:17 +0000
+++ b/unittest/gunit/opt_range-t.cc	2012-02-22 14:30:56 +0000
@@ -140,7 +140,13 @@ public:
     if (item)
       item->save_in_field_no_warnings(this, true);      
   }
-  
+  ~Mock_field_long()
+  {
+    bitmap_free(&share_allset);
+    bitmap_free(&tbl_readset);
+    bitmap_free(&tbl_writeset);
+  }
+
   // #bytes to store the value - see Field_long::key_lenght()
   static const int KEY_LENGTH= 4;
   const char *m_table_name;

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