Merge sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.1

into sanja.is.com.ua:/home/bell/mysql/bk/work-print_subselect-4.1

sql/item_cmpfunc.cc

@@ -429,6 +429,7 @@ bool Item_in_optimizer::fix_left(THD *thd,
   not_null_tables_cache= args[0]->not_null_tables();
   with_sum_func= args[0]->with_sum_func;
   const_item_cache= args[0]->const_item();
+  fixed= 1;
   return 0;
 }
 

sql/item_sum.cc

@@ -1830,7 +1830,7 @@ bool Item_func_group_concat::setup(THD *thd)
   if (select_lex->linkage == GLOBAL_OPTIONS_TYPE)
     DBUG_RETURN(1);
   /*
-    all not constant fields are push to list and create temp table
+    push all not constant fields to list and create temp table
   */ 
   always_null= 0;
   for (uint i= 0; i < arg_count; i++)