drop_primary_key_list(void)
{
  unsigned long long counter;

  if (primary_keys_number_of)
  {
    for (counter= 0; counter < primary_keys_number_of; counter++)
      my_free(primary_keys[counter], MYF(0));

    my_free(primary_keys, MYF(0));
  }

  return 0;
}
drop_primary_key_list(void)
{
  unsigned long long counter;

  if (primary_keys_number_of)
  {
    for (counter= 0; counter < primary_keys_number_of; counter++)
      my_free(primary_keys[counter], MYF(0));

    my_free(primary_keys, MYF(0));
  }

  return 0;
}