diff options
Diffstat (limited to 'sql/field.h')
| -rw-r--r-- | sql/field.h | 166 |
1 files changed, 77 insertions, 89 deletions
diff --git a/sql/field.h b/sql/field.h index b138eb772d8..03fd6d46a78 100644 --- a/sql/field.h +++ b/sql/field.h @@ -16,8 +16,8 @@ /* -** Because of the function new_field all field classes that have static -** variables must declare the size_of() member function. + Because of the function new_field() all field classes that have static + variables must declare the size_of() member function. */ #ifdef __GNUC__ @@ -31,27 +31,28 @@ struct st_cache_field; void field_conv(Field *to,Field *from); class Field { - Field(const Item &); /* Prevent use of theese */ + Field(const Item &); /* Prevent use of these */ void operator=(Field &); public: static void *operator new(size_t size) {return (void*) sql_alloc((uint) size); } static void operator delete(void *ptr_arg, size_t size) {} /*lint -e715 */ - enum utype { NONE,DATE,SHIELD,NOEMPTY,CASEUP,PNR,BGNR,PGNR,YES,NO,REL, - CHECK,EMPTY,UNKNOWN_FIELD,CASEDN,NEXT_NUMBER,INTERVAL_FIELD, - BIT_FIELD, TIMESTAMP_FIELD,CAPITALIZE,BLOB_FIELD}; - char *ptr; // Position to field in record + char *ptr; // Position to field in record uchar *null_ptr; // Byte where null_bit is - uint8 null_bit; // And position to it struct st_table *table; // Pointer for table - ulong query_id; // For quick test of used fields - key_map key_start,part_of_key,part_of_sortkey;// Field is part of these keys. - const char *table_name,*field_name; - utype unireg_check; - uint32 field_length; // Length of field - uint16 flags; - - Field(char *ptr_arg,uint32 length_arg,uchar *null_ptr_arg,uint null_bit_arg, + const char *table_name,*field_name; + ulong query_id; // For quick test of used fields + // Field is part of the following keys + key_map key_start,part_of_key,part_of_sortkey; + enum utype { NONE,DATE,SHIELD,NOEMPTY,CASEUP,PNR,BGNR,PGNR,YES,NO,REL, + CHECK,EMPTY,UNKNOWN_FIELD,CASEDN,NEXT_NUMBER,INTERVAL_FIELD, + BIT_FIELD, TIMESTAMP_FIELD,CAPITALIZE,BLOB_FIELD}; + utype unireg_check; + uint32 field_length; // Length of field + uint16 flags; + uchar null_bit; // Bit used to test null bit + + Field(char *ptr_arg,uint32 length_arg,uchar *null_ptr_arg,uchar null_bit_arg, utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg); virtual ~Field() {} @@ -77,7 +78,7 @@ public: virtual enum_field_types real_type() const { return type(); } inline int cmp(const char *str) { return cmp(ptr,str); } virtual int cmp(const char *,const char *)=0; - virtual int cmp_binary(const char *a,const char *b, ulong max_length=~0L) + virtual int cmp_binary(const char *a,const char *b, uint32 max_length=~0L) { return memcmp(a,b,pack_length()); } virtual int cmp_offset(uint row_offset) { return memcmp(ptr,ptr+row_offset,pack_length()); } @@ -101,30 +102,30 @@ public: inline void set_null(int row_offset=0) { if (null_ptr) null_ptr[row_offset]|= null_bit; } inline void set_notnull(int row_offset=0) - { if (null_ptr) null_ptr[row_offset]&= ~null_bit; } + { if (null_ptr) null_ptr[row_offset]&= (uchar) ~null_bit; } inline bool maybe_null(void) { return null_ptr != 0 || table->maybe_null; } inline bool real_maybe_null(void) { return null_ptr != 0; } virtual void make_field(Send_field *)=0; virtual void sort_string(char *buff,uint length)=0; virtual bool optimize_range(); virtual bool store_for_compare() { return 0; } - inline Field *new_field(struct st_table *new_table) - { - Field *tmp= (Field*) sql_memdup((char*) this,size_of()); - if (tmp) - { - tmp->table=new_table; - tmp->key_start=tmp->part_of_key=tmp->part_of_sortkey=0; - tmp->unireg_check=Field::NONE; - tmp->flags&= (NOT_NULL_FLAG | BLOB_FLAG | UNSIGNED_FLAG | ZEROFILL_FLAG | BINARY_FLAG | ENUM_FLAG | SET_FLAG); - tmp->reset_fields(); - } - return tmp; - } - inline void move_field(char *ptr_arg,uchar *null_ptr_arg,uint null_bit_arg) + Field *new_field(MEM_ROOT *root, struct st_table *new_table) + { + Field *tmp= (Field*) memdup_root(root,(char*) this,size_of()); + if (tmp) { - ptr=ptr_arg; null_ptr=null_ptr_arg; null_bit=null_bit_arg; + tmp->table=new_table; + tmp->key_start=tmp->part_of_key=tmp->part_of_sortkey=0; + tmp->unireg_check=Field::NONE; + tmp->flags&= (NOT_NULL_FLAG | BLOB_FLAG | UNSIGNED_FLAG | ZEROFILL_FLAG | BINARY_FLAG | ENUM_FLAG | SET_FLAG); + tmp->reset_fields(); } + return tmp; + } + inline void move_field(char *ptr_arg,uchar *null_ptr_arg,uchar null_bit_arg) + { + ptr=ptr_arg; null_ptr=null_ptr_arg; null_bit=null_bit_arg; + } inline void move_field(char *ptr_arg) { ptr=ptr_arg; } inline void move_field(my_ptrdiff_t ptr_diff) { @@ -154,10 +155,10 @@ public: ptr-=row_offset; return tmp; } - bool send(String *packet); + bool send(THD *thd, String *packet); virtual char *pack(char* to, const char *from, uint max_length=~(uint) 0) { - uint length=pack_length(); + uint32 length=pack_length(); memcpy(to,from,length); return to+length; } @@ -212,10 +213,10 @@ public: const uint8 dec; bool zerofill,unsigned_flag; // Purify cannot handle bit fields Field_num(char *ptr_arg,uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, utype unireg_check_arg, + uchar null_bit_arg, utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, - uint dec_arg,bool zero_arg,bool unsigned_arg) + uint8 dec_arg,bool zero_arg,bool unsigned_arg) :Field(ptr_arg, len_arg, null_ptr_arg, null_bit_arg, unireg_check_arg, field_name_arg, table_arg), dec(dec_arg),zerofill(zero_arg),unsigned_flag(unsigned_arg) @@ -230,7 +231,7 @@ public: void add_zerofill_and_unsigned(String &res) const; friend class create_field; void make_field(Send_field *); - uint decimals() const { return dec; } + uint decimals() const { return (uint) dec; } uint size_of() const { return sizeof(*this); } bool eq_def(Field *field); }; @@ -239,7 +240,7 @@ public: class Field_str :public Field { public: Field_str(char *ptr_arg,uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, utype unireg_check_arg, + uchar null_bit_arg, utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg) :Field(ptr_arg, len_arg, null_ptr_arg, null_bit_arg, @@ -256,10 +257,10 @@ public: class Field_decimal :public Field_num { public: Field_decimal(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, - uint dec_arg,bool zero_arg,bool unsigned_arg) + uint8 dec_arg,bool zero_arg,bool unsigned_arg) :Field_num(ptr_arg, len_arg, null_ptr_arg, null_bit_arg, unireg_check_arg, field_name_arg, table_arg, dec_arg, zero_arg,unsigned_arg) @@ -285,7 +286,7 @@ public: class Field_tiny :public Field_num { public: Field_tiny(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, bool zero_arg, bool unsigned_arg) @@ -314,7 +315,7 @@ public: class Field_short :public Field_num { public: Field_short(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, bool zero_arg, bool unsigned_arg) @@ -343,7 +344,7 @@ public: class Field_medium :public Field_num { public: Field_medium(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, bool zero_arg, bool unsigned_arg) @@ -372,7 +373,7 @@ public: class Field_long :public Field_num { public: Field_long(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, bool zero_arg, bool unsigned_arg) @@ -407,7 +408,7 @@ public: class Field_longlong :public Field_num { public: Field_longlong(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, bool zero_arg, bool unsigned_arg) @@ -415,10 +416,11 @@ public: unireg_check_arg, field_name_arg, table_arg, 0, zero_arg,unsigned_arg) {} - Field_longlong(uint32 len_arg,bool maybe_null_arg, const char *field_name_arg, - struct st_table *table_arg) + Field_longlong(uint32 len_arg,bool maybe_null_arg, + const char *field_name_arg, + struct st_table *table_arg, bool unsigned_arg) :Field_num((char*) 0, len_arg, maybe_null_arg ? (uchar*) "": 0,0, - NONE, field_name_arg, table_arg,0,0,0) + NONE, field_name_arg, table_arg,0,0,unsigned_arg) {} enum Item_result result_type () const { return INT_RESULT; } enum_field_types type() const { return FIELD_TYPE_LONGLONG;} @@ -441,10 +443,10 @@ public: class Field_float :public Field_num { public: Field_float(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, - uint dec_arg,bool zero_arg,bool unsigned_arg) + uint8 dec_arg,bool zero_arg,bool unsigned_arg) :Field_num(ptr_arg, len_arg, null_ptr_arg, null_bit_arg, unireg_check_arg, field_name_arg, table_arg, dec_arg, zero_arg,unsigned_arg) @@ -468,16 +470,16 @@ public: class Field_double :public Field_num { public: Field_double(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg, - uint dec_arg,bool zero_arg,bool unsigned_arg) + uint8 dec_arg,bool zero_arg,bool unsigned_arg) :Field_num(ptr_arg, len_arg, null_ptr_arg, null_bit_arg, unireg_check_arg, field_name_arg, table_arg, dec_arg, zero_arg,unsigned_arg) {} Field_double(uint32 len_arg, bool maybe_null_arg, const char *field_name_arg, - struct st_table *table_arg, uint dec_arg) + struct st_table *table_arg, uint8 dec_arg) :Field_num((char*) 0, len_arg, maybe_null_arg ? (uchar*) "": 0, (uint) 0, NONE, field_name_arg, table_arg,dec_arg,0,0) {} @@ -566,7 +568,7 @@ public: class Field_year :public Field_tiny { public: Field_year(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg) :Field_tiny(ptr_arg, len_arg, null_ptr_arg, null_bit_arg, @@ -585,7 +587,7 @@ public: class Field_date :public Field_str { public: - Field_date(char *ptr_arg, uchar *null_ptr_arg, uint null_bit_arg, + Field_date(char *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg) :Field_str(ptr_arg, 10, null_ptr_arg, null_bit_arg, @@ -611,7 +613,7 @@ public: class Field_newdate :public Field_str { public: - Field_newdate(char *ptr_arg, uchar *null_ptr_arg, uint null_bit_arg, + Field_newdate(char *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg) :Field_str(ptr_arg, 10, null_ptr_arg, null_bit_arg, @@ -642,7 +644,7 @@ public: class Field_time :public Field_str { public: - Field_time(char *ptr_arg, uchar *null_ptr_arg, uint null_bit_arg, + Field_time(char *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg) :Field_str(ptr_arg, 8, null_ptr_arg, null_bit_arg, @@ -670,7 +672,7 @@ public: class Field_datetime :public Field_str { public: - Field_datetime(char *ptr_arg, uchar *null_ptr_arg, uint null_bit_arg, + Field_datetime(char *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg) :Field_str(ptr_arg, 19, null_ptr_arg, null_bit_arg, @@ -704,7 +706,7 @@ class Field_string :public Field_str { bool binary_flag; public: Field_string(char *ptr_arg, uint32 len_arg,uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg,bool binary_arg) :Field_str(ptr_arg, len_arg, null_ptr_arg, null_bit_arg, @@ -759,7 +761,7 @@ class Field_varstring :public Field_str { bool binary_flag; public: Field_varstring(char *ptr_arg, uint32 len_arg,uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg,bool binary_arg) :Field_str(ptr_arg, len_arg, null_ptr_arg, null_bit_arg, @@ -812,7 +814,7 @@ class Field_blob :public Field_str { String value; // For temporaries bool binary_flag; public: - Field_blob(char *ptr_arg, uchar *null_ptr_arg, uint null_bit_arg, + Field_blob(char *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg,uint blob_pack_length, bool binary_arg); @@ -836,21 +838,22 @@ public: longlong val_int(void); String *val_str(String*,String *); int cmp(const char *,const char*); - int cmp(const char *a, ulong a_length, const char *b, ulong b_length); + int cmp(const char *a, uint32 a_length, const char *b, uint32 b_length); int cmp_offset(uint offset); - int cmp_binary(const char *a,const char *b, ulong max_length=~0L); + int cmp_binary(const char *a,const char *b, uint32 max_length=~0L); int cmp_binary_offset(uint row_offset); int key_cmp(const byte *,const byte*); int key_cmp(const byte *str, uint length); uint32 key_length() const { return 0; } void sort_string(char *buff,uint length); - uint32 pack_length() const { return (uint32) (packlength+table->blob_ptr_size); } - void reset(void) { bzero(ptr,packlength+sizeof(char*)); } + uint32 pack_length() const + { return (uint32) (packlength+table->blob_ptr_size); } + void reset(void) { bzero(ptr, packlength+sizeof(char*)); } void reset_fields() { bzero((char*) &value,sizeof(value)); } - void store_length(ulong number); - inline ulong get_length(uint row_offset=0) + void store_length(uint32 number); + inline uint32 get_length(uint row_offset=0) { return get_length(ptr+row_offset); } - ulong get_length(const char *ptr); + uint32 get_length(const char *ptr); bool binary() const { return binary_flag; } inline void get_ptr(char **str) { @@ -861,7 +864,7 @@ public: memcpy(ptr,length,packlength); memcpy_fixed(ptr+packlength,&data,sizeof(char*)); } - inline void set_ptr(ulong length,char *data) + inline void set_ptr(uint32 length,char *data) { store_length(length); memcpy_fixed(ptr+packlength,&data,sizeof(char*)); @@ -882,21 +885,6 @@ public: } char *pack(char *to, const char *from, uint max_length= ~(uint) 0); const char *unpack(char *to, const char *from); -#ifdef HAVE_GEMINI_DB - char *pack_id(char *to, const char *from, ulonglong id, - uint max_length= ~(uint) 0); - ulonglong get_id(const char *from); - const char *unpack_id(char *to, const char *from, const char *bdata); - inline void get_ptr_from_key_image(char **str,char *key_str) - { - *str = key_str + sizeof(uint16); - } - inline uint get_length_from_key_image(char *key_str) - { - return uint2korr(key_str); - } - enum_field_types blobtype() { return (packlength == 1 ? FIELD_TYPE_TINY_BLOB : FIELD_TYPE_BLOB);} -#endif char *pack_key(char *to, const char *from, uint max_length); char *pack_key_from_key_image(char* to, const char *from, uint max_length); int pack_cmp(const char *a, const char *b, uint key_length); @@ -916,7 +904,7 @@ protected: public: TYPELIB *typelib; Field_enum(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg,uint packlength_arg, TYPELIB *typelib_arg) @@ -953,7 +941,7 @@ public: class Field_set :public Field_enum { public: Field_set(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, - uint null_bit_arg, + uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, struct st_table *table_arg,uint32 packlength_arg, TYPELIB *typelib_arg) @@ -1036,7 +1024,7 @@ public: Field *make_field(char *ptr, uint32 field_length, - uchar *null_pos, uint null_bit, + uchar *null_pos, uchar null_bit, uint pack_flag, Field::utype unireg_check, TYPELIB *interval, const char *field_name, struct st_table *table); @@ -1079,7 +1067,7 @@ bool test_if_int(const char *str,int length); #define f_is_zerofill(x) ((x) & FIELDFLAG_ZEROFILL) #define f_is_packed(x) ((x) & FIELDFLAG_PACK) #define f_packtype(x) (((x) >> FIELDFLAG_PACK_SHIFT) & 15) -#define f_decimals(x) (((x) >> FIELDFLAG_DEC_SHIFT) & FIELDFLAG_MAX_DEC) +#define f_decimals(x) ((uint8) (((x) >> FIELDFLAG_DEC_SHIFT) & FIELDFLAG_MAX_DEC)) #define f_is_alpha(x) (!f_is_num(x)) #define f_is_binary(x) ((x) & FIELDFLAG_BINARY) #define f_is_enum(x) ((x) & FIELDFLAG_INTERVAL) |