MDEV-6743 crash in GROUP_CONCAT(IF () ORDER BY 1)

new fix
11 years ago · f1afc003ee
1 changed files with 1 additions and 1 deletions
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@ -21143,7 +21143,7 @@ find_order_in_list(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
               order_item->full_name(), thd->where);
      return TRUE;
    }
-    order->item= ref_pointer_array + count - 1;
+    thd->change_item_tree((Item**)&order->item, (Item*)(ref_pointer_array + count - 1));
    order->in_field_list= 1;
    order->counter= count;
    order->counter_used= 1;