Merged the code of mwl 106 into the latest 5.3 with mwl 90 pushed.

Resolved all conflicts and failures.

sql/sql_cursor.cc

@@ -722,8 +722,8 @@ bool Select_materialize::send_fields(List<Item> &list, uint flags)
   DBUG_ASSERT(table == 0);
   if (create_result_table(unit->thd, unit->get_unit_column_types(),
                           FALSE, thd->options | TMP_TABLE_ALL_COLUMNS, "",
-                          FALSE))
-    return TRUE;
+                          FALSE, TRUE))
+   return TRUE;
 
   materialized_cursor= new (&table->mem_root)
                        Materialized_cursor(result, table);