55
55
{ field_derivation= derivation_arg; }
56
56
bool binary() const { return field_charset == &my_charset_bin; }
57
57
uint32_t max_display_length() { return field_length; }
59
59
my_decimal *val_decimal(my_decimal *);
60
60
virtual bool str_needs_quotes() { return true; }
63
63
uint32_t max_data_length() const;