bzr commit into mysql-6.0 branch (sergefp:2707)

[Sergey Petrunia]

#At file:///home/spetrunia/dev/mysql-6.0-opt/ based on revid:sergefp@stripped

 2707 Sergey Petrunia	2008-12-28 [merge]
      Merge mysql-6.0 -> mysql-6.0-opt
modified:
  sql/sql_base.cc

=== modified file 'sql/sql_base.cc'
--- a/sql/sql_base.cc	2008-12-24 21:07:30 +0000
+++ b/sql/sql_base.cc	2008-12-28 15:02:51 +0000
@@ -6525,6 +6525,11 @@ int setup_wild(THD *thd, TABLE_LIST *tab
     SELECT_LEX *select_lex= thd->lex->current_select;
     select_lex->with_wild= 0;
 
+    /*
+      The assignment below is translated to memcpy() call (at least on some
+      platforms). memcpy() expects that source and destination areas do not
+      overlap. That problem was detected by valgrind.
+    */
     if (&select_lex->item_list != &fields)
       select_lex->item_list= fields;