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@ -1904,6 +1904,131 @@ public: |
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}; |
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class Type_limits_int |
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{ |
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private: |
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uint32 m_precision; |
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uint32 m_char_length; |
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public: |
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Type_limits_int(uint32 prec, uint32 nchars) |
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:m_precision(prec), m_char_length(nchars) |
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{ } |
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uint32 precision() const { return m_precision; } |
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uint32 char_length() const { return m_char_length; } |
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}; |
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/* |
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UNDIGNED TINYINT: 0..255 digits=3 nchars=3 |
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SIGNED TINYINT : -128..127 digits=3 nchars=4 |
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*/ |
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class Type_limits_uint8: public Type_limits_int |
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{ |
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public: |
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Type_limits_uint8() |
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:Type_limits_int(MAX_TINYINT_WIDTH, MAX_TINYINT_WIDTH) |
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{ } |
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}; |
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class Type_limits_sint8: public Type_limits_int |
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{ |
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public: |
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Type_limits_sint8() |
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:Type_limits_int(MAX_TINYINT_WIDTH, MAX_TINYINT_WIDTH + 1) |
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{ } |
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}; |
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/* |
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UNDIGNED SMALLINT: 0..65535 digits=5 nchars=5 |
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SIGNED SMALLINT: -32768..32767 digits=5 nchars=6 |
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*/ |
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class Type_limits_uint16: public Type_limits_int |
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{ |
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public: |
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Type_limits_uint16() |
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:Type_limits_int(MAX_SMALLINT_WIDTH, MAX_SMALLINT_WIDTH) |
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{ } |
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}; |
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class Type_limits_sint16: public Type_limits_int |
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{ |
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public: |
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Type_limits_sint16() |
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:Type_limits_int(MAX_SMALLINT_WIDTH, MAX_SMALLINT_WIDTH + 1) |
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{ } |
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}; |
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/* |
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MEDIUMINT UNSIGNED 0 .. 16777215 digits=8 char_length=8 |
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MEDIUMINT SIGNED: -8388608 .. 8388607 digits=7 char_length=8 |
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*/ |
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class Type_limits_uint24: public Type_limits_int |
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{ |
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public: |
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Type_limits_uint24() |
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:Type_limits_int(MAX_MEDIUMINT_WIDTH, MAX_MEDIUMINT_WIDTH) |
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{ } |
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}; |
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class Type_limits_sint24: public Type_limits_int |
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{ |
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public: |
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Type_limits_sint24() |
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:Type_limits_int(MAX_MEDIUMINT_WIDTH - 1, MAX_MEDIUMINT_WIDTH) |
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{ } |
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}; |
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/* |
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UNSIGNED INT: 0..4294967295 digits=10 nchars=10 |
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SIGNED INT: -2147483648..2147483647 digits=10 nchars=11 |
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*/ |
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class Type_limits_uint32: public Type_limits_int |
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{ |
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public: |
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Type_limits_uint32() |
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:Type_limits_int(MAX_INT_WIDTH, MAX_INT_WIDTH) |
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{ } |
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}; |
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class Type_limits_sint32: public Type_limits_int |
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{ |
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public: |
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Type_limits_sint32() |
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:Type_limits_int(MAX_INT_WIDTH, MAX_INT_WIDTH + 1) |
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{ } |
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}; |
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/* |
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UNSIGNED BIGINT: 0..18446744073709551615 digits=20 nchars=20 |
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SIGNED BIGINT: -9223372036854775808..9223372036854775807 digits=19 nchars=20 |
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*/ |
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class Type_limits_uint64: public Type_limits_int |
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{ |
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public: |
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Type_limits_uint64(): Type_limits_int(MAX_BIGINT_WIDTH, MAX_BIGINT_WIDTH) |
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{ } |
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}; |
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class Type_limits_sint64: public Type_limits_int |
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{ |
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public: |
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Type_limits_sint64() |
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:Type_limits_int(MAX_BIGINT_WIDTH - 1, MAX_BIGINT_WIDTH) |
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{ } |
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}; |
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class Type_handler_int_result: public Type_handler_numeric |
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{ |
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public: |
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@ -1977,6 +2102,9 @@ class Type_handler_general_purpose_int: public Type_handler_int_result |
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{ |
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public: |
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bool type_can_have_auto_increment_attribute() const { return true; } |
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virtual const Type_limits_int * |
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type_limits_int_by_unsigned_flag(bool unsigned_flag) const= 0; |
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uint32 max_display_length(const Item *item) const; |
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}; |
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@ -2196,11 +2324,16 @@ public: |
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class Type_handler_tiny: public Type_handler_general_purpose_int |
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{ |
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static const Name m_name_tiny; |
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static const Type_limits_int m_limits_sint8; |
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static const Type_limits_int m_limits_uint8; |
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public: |
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virtual ~Type_handler_tiny() {} |
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const Name name() const { return m_name_tiny; } |
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enum_field_types field_type() const { return MYSQL_TYPE_TINY; } |
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uint32 max_display_length(const Item *item) const { return 4; } |
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const Type_limits_int *type_limits_int_by_unsigned_flag(bool unsigned_fl) const |
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{ |
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return unsigned_fl ? &m_limits_uint8 : &m_limits_sint8; |
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} |
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uint32 calc_pack_length(uint32 length) const { return 1; } |
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bool Item_send(Item *item, Protocol *protocol, st_value *buf) const |
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{ |
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@ -2225,6 +2358,8 @@ public: |
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class Type_handler_short: public Type_handler_general_purpose_int |
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{ |
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static const Name m_name_short; |
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static const Type_limits_int m_limits_sint16; |
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static const Type_limits_int m_limits_uint16; |
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public: |
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virtual ~Type_handler_short() {} |
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const Name name() const { return m_name_short; } |
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@ -2233,7 +2368,10 @@ public: |
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{ |
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return Item_send_short(item, protocol, buf); |
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} |
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uint32 max_display_length(const Item *item) const { return 6; } |
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const Type_limits_int *type_limits_int_by_unsigned_flag(bool unsigned_fl) const |
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{ |
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return unsigned_fl ? &m_limits_uint16 : &m_limits_sint16; |
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} |
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uint32 calc_pack_length(uint32 length) const { return 2; } |
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Field *make_conversion_table_field(TABLE *TABLE, uint metadata, |
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const Field *target) const; |
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@ -2254,13 +2392,15 @@ public: |
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class Type_handler_long: public Type_handler_general_purpose_int |
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{ |
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static const Name m_name_int; |
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static const Type_limits_int m_limits_sint32; |
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static const Type_limits_int m_limits_uint32; |
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public: |
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virtual ~Type_handler_long() {} |
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const Name name() const { return m_name_int; } |
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enum_field_types field_type() const { return MYSQL_TYPE_LONG; } |
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uint32 max_display_length(const Item *item) const |
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const Type_limits_int *type_limits_int_by_unsigned_flag(bool unsigned_fl) const |
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{ |
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return MY_INT32_NUM_DECIMAL_DIGITS; |
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return unsigned_fl ? &m_limits_uint32 : &m_limits_sint32; |
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} |
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uint32 calc_pack_length(uint32 length) const { return 4; } |
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bool Item_send(Item *item, Protocol *protocol, st_value *buf) const |
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@ -2286,11 +2426,16 @@ public: |
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class Type_handler_longlong: public Type_handler_general_purpose_int |
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{ |
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static const Name m_name_longlong; |
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static const Type_limits_int m_limits_sint64; |
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static const Type_limits_int m_limits_uint64; |
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public: |
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virtual ~Type_handler_longlong() {} |
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const Name name() const { return m_name_longlong; } |
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enum_field_types field_type() const { return MYSQL_TYPE_LONGLONG; } |
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uint32 max_display_length(const Item *item) const { return 20; } |
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const Type_limits_int *type_limits_int_by_unsigned_flag(bool unsigned_fl) const |
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{ |
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return unsigned_fl ? &m_limits_uint64 : &m_limits_sint64; |
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} |
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uint32 calc_pack_length(uint32 length) const { return 8; } |
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Item *create_typecast_item(THD *thd, Item *item, |
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const Type_cast_attributes &attr) const; |
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@ -2330,6 +2475,8 @@ public: |
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class Type_handler_int24: public Type_handler_general_purpose_int |
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{ |
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static const Name m_name_mediumint; |
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static const Type_limits_int m_limits_sint24; |
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static const Type_limits_int m_limits_uint24; |
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public: |
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virtual ~Type_handler_int24() {} |
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const Name name() const { return m_name_mediumint; } |
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@ -2338,7 +2485,10 @@ public: |
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{ |
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return Item_send_long(item, protocol, buf); |
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} |
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uint32 max_display_length(const Item *item) const { return 8; } |
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const Type_limits_int *type_limits_int_by_unsigned_flag(bool unsigned_fl) const |
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{ |
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return unsigned_fl ? &m_limits_uint24 : &m_limits_sint24; |
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} |
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uint32 calc_pack_length(uint32 length) const { return 3; } |
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Field *make_conversion_table_field(TABLE *, uint metadata, |
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const Field *target) const; |
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Alexander Barkov
8 years ago