973
class Field_float :public Field_real {
975
Field_float(uchar *ptr_arg, uint32 len_arg, uchar *null_ptr_arg,
977
enum utype unireg_check_arg, const char *field_name_arg,
978
uint8 dec_arg,bool zero_arg,bool unsigned_arg)
979
:Field_real(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,
980
unireg_check_arg, field_name_arg,
981
dec_arg, zero_arg, unsigned_arg)
983
Field_float(uint32 len_arg, bool maybe_null_arg, const char *field_name_arg,
985
:Field_real((uchar*) 0, len_arg, maybe_null_arg ? (uchar*) "": 0, (uint) 0,
986
NONE, field_name_arg, dec_arg, 0, 0)
988
enum_field_types type() const { return MYSQL_TYPE_FLOAT;}
989
enum ha_base_keytype key_type() const { return HA_KEYTYPE_FLOAT; }
990
int store(const char *to,uint length,CHARSET_INFO *charset);
991
int store(double nr);
992
int store(int64_t nr, bool unsigned_val);
993
int reset(void) { bzero(ptr,sizeof(float)); return 0; }
994
double val_real(void);
995
int64_t val_int(void);
996
String *val_str(String*,String *);
997
bool send_binary(Protocol *protocol);
998
int cmp(const uchar *,const uchar *);
999
void sort_string(uchar *buff,uint length);
1000
uint32 pack_length() const { return sizeof(float); }
1001
uint row_pack_length() { return pack_length(); }
1002
void sql_type(String &str) const;
1004
int do_save_field_metadata(uchar *first_byte);
1008
973
class Field_double :public Field_real {
1010
975
Field_double(uchar *ptr_arg, uint32 len_arg, uchar *null_ptr_arg,