void Field_datetimef::store_TIME(MYSQL_TIME *ltime)
{
  my_time_trunc(ltime, decimals());
  longlong tmp= TIME_to_longlong_datetime_packed(ltime);
  my_datetime_packed_to_binary(tmp, ptr, dec);
}
void Field_datetimef::store_TIME(MYSQL_TIME *ltime)
{
  my_time_trunc(ltime, decimals());
  longlong tmp= TIME_to_longlong_datetime_packed(ltime);
  my_datetime_packed_to_binary(tmp, ptr, dec);
}