Method create_native

sql/item_create.cc:267–303

{
public:
  virtual Item *create_native(THD *thd, LEX_STRING name, List<Item> *item_list)
  {
    Item *func= NULL, *p1, *p2, *p3;
    int arg_count= 0;

    /* Unsafe for SBR since result depends on a session variable */
    thd->lex->set_stmt_unsafe(LEX::BINLOG_STMT_UNSAFE_SYSTEM_FUNCTION);

    if (item_list != NULL)
      arg_count= item_list->elements;

    switch (arg_count)
    {
    case 2:
      {
        p1= item_list->pop();
        p2= item_list->pop();
        func= create_aes(thd, p1, p2);
        break;
      }
    case 3:
      {
        p1= item_list->pop();
        p2= item_list->pop();
        p3= item_list->pop();
        func= create_aes(thd, p1, p2, p3);
        break;
      }
    default:
      {
        my_error(ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT, MYF(0), name.str);
        break;
      }
    }
    return func;

  }
  virtual Item *create_aes(THD *thd, Item *arg1, Item *arg2)= 0;
  virtual Item *create_aes(THD *thd, Item *arg1, Item *arg2, Item *arg3)= 0;
protected: