Method send_data

sql/sql_show.cc:3216–3234

int select_result_explain_buffer::send_data(List<Item> &items)
{
  int res;
  THD *cur_thd= current_thd;
  DBUG_ENTER("select_result_explain_buffer::send_data");

  /*
    Switch to the receiveing thread, so that we correctly count memory used
    by it. This is needed as it's the receiving thread that will free the
    memory.
    (TODO: Now that we don't change current_thd in
    Show_explain_request::call_in_target_thread, is this necessary anymore?)
  */
  set_current_thd(thd);
  fill_record(thd, dst_table, dst_table->field, items, true, false, false);
  res= dst_table->file->ha_write_tmp_row(dst_table->record[0]);
  set_current_thd(cur_thd);  
  DBUG_RETURN(MY_TEST(res));
}

bool select_result_text_buffer::send_result_set_metadata(List<Item> &fields,
                                                         uint flag)