460
460
const CHARSET_INFO * const cs= copy->from_field->charset();
462
462
const unsigned char *from_ptr= copy->from_ptr + 1;
463
463
uint32_t to_char_length= (copy->to_length - 1) / cs->mbmaxlen;
464
464
uint32_t length= cs->cset->well_formed_len(cs, (char*) from_ptr,