1 files changed, 1 insertions, 0 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 9b93a92c6aa..81f062c06ec 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -7396,6 +7396,7 @@ simplify_joins(JOIN *join, List<TABLE_LIST> *join_list, COND *conds, bool top)
         if (conds)
         {
           conds= and_conds(conds, table->on_expr);
+          conds->top_level_item();
           /* conds is always a new item as both cond and on_expr existed */
           DBUG_ASSERT(!conds->fixed);
           conds->fix_fields(join->thd, 0, &conds);