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MDEV-15946 MEDIUMINT(N<8) creates a wrong data type on conversion to string

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This commit is contained in:
Alexander Barkov 2018-04-23 18:34:06 +04:00
parent 8fce4065e5
commit 461de7edea
7 changed files with 420 additions and 93 deletions
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32
mysql-test/main/sp-row.result
View File

@ -1286,8 +1286,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`var` mediumint(9) DEFAULT NULL,
`rec.var` mediumint(9) DEFAULT NULL
`var` mediumint(8) DEFAULT NULL,
`rec.var` mediumint(8) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1296,8 +1296,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`var` mediumint(9) DEFAULT NULL,
`rec.var` mediumint(9) DEFAULT NULL
`var` mediumint(8) DEFAULT NULL,
`rec.var` mediumint(8) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1306,8 +1306,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`var` mediumint(9) DEFAULT NULL,
`rec.var` mediumint(9) DEFAULT NULL
`var` mediumint(8) DEFAULT NULL,
`rec.var` mediumint(8) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1316,8 +1316,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`var` mediumint(9) DEFAULT NULL,
`rec.var` mediumint(9) DEFAULT NULL
`var` mediumint(8) DEFAULT NULL,
`rec.var` mediumint(8) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1326,8 +1326,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`var` mediumint(9) DEFAULT NULL,
`rec.var` mediumint(9) DEFAULT NULL
`var` mediumint(8) DEFAULT NULL,
`rec.var` mediumint(8) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1336,8 +1336,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`var` mediumint(9) DEFAULT NULL,
`rec.var` mediumint(9) DEFAULT NULL
`var` mediumint(8) DEFAULT NULL,
`rec.var` mediumint(8) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1346,8 +1346,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`var` mediumint(9) DEFAULT NULL,
`rec.var` mediumint(9) DEFAULT NULL
`var` mediumint(8) DEFAULT NULL,
`rec.var` mediumint(8) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1356,8 +1356,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`var` mediumint(9) DEFAULT NULL,
`rec.var` mediumint(9) DEFAULT NULL
`var` mediumint(8) DEFAULT NULL,
`rec.var` mediumint(8) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE p1;

117
mysql-test/main/type_int.result
View File

@ -106,5 +106,122 @@ a 7
b 8
DROP TABLE t1;
#
# MDEV-15946 MEDIUMINT(N<8) creates a wrong data type on conversion to string
#
CREATE TABLE t1 (
uint8 TINYINT(2) UNSIGNED, sint8 TINYINT(2),
uint16 SMALLINT(2) UNSIGNED, sint16 SMALLINT(2),
uint24 MEDIUMINT(2) UNSIGNED, sint24 MEDIUMINT(2),
uint32 INT(2) UNSIGNED, sint32 INT(2),
uint64 BIGINT(2) UNSIGNED, sint64 BIGINT(2)
);
CREATE TABLE t2 AS SELECT
CONCAT(uint8),CONCAT(sint8),
CONCAT(uint16),CONCAT(sint16),
CONCAT(uint24),CONCAT(sint24),
CONCAT(uint32),CONCAT(sint32),
CONCAT(uint64),CONCAT(sint64)
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`CONCAT(uint8)` varchar(3) DEFAULT NULL,
`CONCAT(sint8)` varchar(4) DEFAULT NULL,
`CONCAT(uint16)` varchar(5) DEFAULT NULL,
`CONCAT(sint16)` varchar(6) DEFAULT NULL,
`CONCAT(uint24)` varchar(8) DEFAULT NULL,
`CONCAT(sint24)` varchar(8) DEFAULT NULL,
`CONCAT(uint32)` varchar(10) DEFAULT NULL,
`CONCAT(sint32)` varchar(11) DEFAULT NULL,
`CONCAT(uint64)` varchar(20) DEFAULT NULL,
`CONCAT(sint64)` varchar(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t2;
CREATE TABLE t2 AS SELECT
CONCAT(COALESCE(uint8)),CONCAT(COALESCE(sint8)),
CONCAT(COALESCE(uint16)),CONCAT(COALESCE(sint16)),
CONCAT(COALESCE(uint24)),CONCAT(COALESCE(sint24)),
CONCAT(COALESCE(uint32)),CONCAT(COALESCE(sint32)),
CONCAT(COALESCE(uint64)),CONCAT(COALESCE(sint64))
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`CONCAT(COALESCE(uint8))` varchar(3) DEFAULT NULL,
`CONCAT(COALESCE(sint8))` varchar(4) DEFAULT NULL,
`CONCAT(COALESCE(uint16))` varchar(5) DEFAULT NULL,
`CONCAT(COALESCE(sint16))` varchar(6) DEFAULT NULL,
`CONCAT(COALESCE(uint24))` varchar(8) DEFAULT NULL,
`CONCAT(COALESCE(sint24))` varchar(8) DEFAULT NULL,
`CONCAT(COALESCE(uint32))` varchar(10) DEFAULT NULL,
`CONCAT(COALESCE(sint32))` varchar(11) DEFAULT NULL,
`CONCAT(COALESCE(uint64))` varchar(20) DEFAULT NULL,
`CONCAT(COALESCE(sint64))` varchar(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t2;
DROP TABLE t1;
CREATE FUNCTION uint8() RETURNS TINYINT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint8() RETURNS TINYINT(2) RETURN 1;
CREATE FUNCTION uint16() RETURNS SMALLINT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint16() RETURNS SMALLINT(2) RETURN 1;
CREATE FUNCTION uint24() RETURNS MEDIUMINT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint24() RETURNS MEDIUMINT(2) RETURN 1;
CREATE FUNCTION uint32() RETURNS INT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint32() RETURNS INT(2) RETURN 1;
CREATE FUNCTION uint64() RETURNS BIGINT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint64() RETURNS BIGINT(2) RETURN 1;
CREATE TABLE t1 AS SELECT
CONCAT(uint8()), CONCAT(sint8()),
CONCAT(uint16()),CONCAT(sint16()),
CONCAT(uint24()),CONCAT(sint24()),
CONCAT(uint32()),CONCAT(sint32()),
CONCAT(uint64()),CONCAT(sint64());
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`CONCAT(uint8())` varchar(3) DEFAULT NULL,
`CONCAT(sint8())` varchar(4) DEFAULT NULL,
`CONCAT(uint16())` varchar(5) DEFAULT NULL,
`CONCAT(sint16())` varchar(6) DEFAULT NULL,
`CONCAT(uint24())` varchar(8) DEFAULT NULL,
`CONCAT(sint24())` varchar(8) DEFAULT NULL,
`CONCAT(uint32())` varchar(10) DEFAULT NULL,
`CONCAT(sint32())` varchar(11) DEFAULT NULL,
`CONCAT(uint64())` varchar(20) DEFAULT NULL,
`CONCAT(sint64())` varchar(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1 AS SELECT
CONCAT(COALESCE(uint8())),CONCAT(COALESCE(sint8())),
CONCAT(COALESCE(uint16())),CONCAT(COALESCE(sint16())),
CONCAT(COALESCE(uint24())),CONCAT(COALESCE(sint24())),
CONCAT(COALESCE(uint32())),CONCAT(COALESCE(sint32())),
CONCAT(COALESCE(uint64())),CONCAT(COALESCE(sint64()));
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`CONCAT(COALESCE(uint8()))` varchar(3) DEFAULT NULL,
`CONCAT(COALESCE(sint8()))` varchar(4) DEFAULT NULL,
`CONCAT(COALESCE(uint16()))` varchar(5) DEFAULT NULL,
`CONCAT(COALESCE(sint16()))` varchar(6) DEFAULT NULL,
`CONCAT(COALESCE(uint24()))` varchar(8) DEFAULT NULL,
`CONCAT(COALESCE(sint24()))` varchar(8) DEFAULT NULL,
`CONCAT(COALESCE(uint32()))` varchar(10) DEFAULT NULL,
`CONCAT(COALESCE(sint32()))` varchar(11) DEFAULT NULL,
`CONCAT(COALESCE(uint64()))` varchar(20) DEFAULT NULL,
`CONCAT(COALESCE(sint64()))` varchar(20) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP FUNCTION uint8;
DROP FUNCTION sint8;
DROP FUNCTION uint16;
DROP FUNCTION sint16;
DROP FUNCTION uint24;
DROP FUNCTION sint24;
DROP FUNCTION uint32;
DROP FUNCTION sint32;
DROP FUNCTION uint64;
DROP FUNCTION sint64;
#
# End of 10.3 tests
#

74
mysql-test/main/type_int.test
View File

@ -90,6 +90,80 @@ SELECT COLUMN_NAME, NUMERIC_PRECISION FROM INFORMATION_SCHEMA.COLUMNS WHERE TABL
DROP TABLE t1;
--echo #
--echo # MDEV-15946 MEDIUMINT(N<8) creates a wrong data type on conversion to string
--echo #
CREATE TABLE t1 (
uint8 TINYINT(2) UNSIGNED, sint8 TINYINT(2),
uint16 SMALLINT(2) UNSIGNED, sint16 SMALLINT(2),
uint24 MEDIUMINT(2) UNSIGNED, sint24 MEDIUMINT(2),
uint32 INT(2) UNSIGNED, sint32 INT(2),
uint64 BIGINT(2) UNSIGNED, sint64 BIGINT(2)
);
CREATE TABLE t2 AS SELECT
CONCAT(uint8),CONCAT(sint8),
CONCAT(uint16),CONCAT(sint16),
CONCAT(uint24),CONCAT(sint24),
CONCAT(uint32),CONCAT(sint32),
CONCAT(uint64),CONCAT(sint64)
FROM t1;
SHOW CREATE TABLE t2;
DROP TABLE t2;
CREATE TABLE t2 AS SELECT
CONCAT(COALESCE(uint8)),CONCAT(COALESCE(sint8)),
CONCAT(COALESCE(uint16)),CONCAT(COALESCE(sint16)),
CONCAT(COALESCE(uint24)),CONCAT(COALESCE(sint24)),
CONCAT(COALESCE(uint32)),CONCAT(COALESCE(sint32)),
CONCAT(COALESCE(uint64)),CONCAT(COALESCE(sint64))
FROM t1;
SHOW CREATE TABLE t2;
DROP TABLE t2;
DROP TABLE t1;
CREATE FUNCTION uint8() RETURNS TINYINT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint8() RETURNS TINYINT(2) RETURN 1;
CREATE FUNCTION uint16() RETURNS SMALLINT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint16() RETURNS SMALLINT(2) RETURN 1;
CREATE FUNCTION uint24() RETURNS MEDIUMINT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint24() RETURNS MEDIUMINT(2) RETURN 1;
CREATE FUNCTION uint32() RETURNS INT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint32() RETURNS INT(2) RETURN 1;
CREATE FUNCTION uint64() RETURNS BIGINT(2) UNSIGNED RETURN 1;
CREATE FUNCTION sint64() RETURNS BIGINT(2) RETURN 1;
CREATE TABLE t1 AS SELECT
CONCAT(uint8()), CONCAT(sint8()),
CONCAT(uint16()),CONCAT(sint16()),
CONCAT(uint24()),CONCAT(sint24()),
CONCAT(uint32()),CONCAT(sint32()),
CONCAT(uint64()),CONCAT(sint64());
SHOW CREATE TABLE t1;
DROP TABLE t1;
CREATE TABLE t1 AS SELECT
CONCAT(COALESCE(uint8())),CONCAT(COALESCE(sint8())),
CONCAT(COALESCE(uint16())),CONCAT(COALESCE(sint16())),
CONCAT(COALESCE(uint24())),CONCAT(COALESCE(sint24())),
CONCAT(COALESCE(uint32())),CONCAT(COALESCE(sint32())),
CONCAT(COALESCE(uint64())),CONCAT(COALESCE(sint64()));
SHOW CREATE TABLE t1;
DROP TABLE t1;
DROP FUNCTION uint8;
DROP FUNCTION sint8;
DROP FUNCTION uint16;
DROP FUNCTION sint16;
DROP FUNCTION uint24;
DROP FUNCTION sint24;
DROP FUNCTION uint32;
DROP FUNCTION sint32;
DROP FUNCTION uint64;
DROP FUNCTION sint64;
--echo #
--echo # End of 10.3 tests
--echo #

32
mysql-test/suite/compat/oracle/r/sp-row.result
View File

@ -1363,8 +1363,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE "t1" (
"var" mediumint(9) DEFAULT NULL,
"rec.var" mediumint(9) DEFAULT NULL
"var" mediumint(8) DEFAULT NULL,
"rec.var" mediumint(8) DEFAULT NULL
)
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1373,8 +1373,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE "t1" (
"var" mediumint(9) DEFAULT NULL,
"rec.var" mediumint(9) DEFAULT NULL
"var" mediumint(8) DEFAULT NULL,
"rec.var" mediumint(8) DEFAULT NULL
)
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1383,8 +1383,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE "t1" (
"var" mediumint(9) DEFAULT NULL,
"rec.var" mediumint(9) DEFAULT NULL
"var" mediumint(8) DEFAULT NULL,
"rec.var" mediumint(8) DEFAULT NULL
)
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1393,8 +1393,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE "t1" (
"var" mediumint(9) DEFAULT NULL,
"rec.var" mediumint(9) DEFAULT NULL
"var" mediumint(8) DEFAULT NULL,
"rec.var" mediumint(8) DEFAULT NULL
)
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1403,8 +1403,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE "t1" (
"var" mediumint(9) DEFAULT NULL,
"rec.var" mediumint(9) DEFAULT NULL
"var" mediumint(8) DEFAULT NULL,
"rec.var" mediumint(8) DEFAULT NULL
)
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1413,8 +1413,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE "t1" (
"var" mediumint(9) DEFAULT NULL,
"rec.var" mediumint(9) DEFAULT NULL
"var" mediumint(8) DEFAULT NULL,
"rec.var" mediumint(8) DEFAULT NULL
)
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1423,8 +1423,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE "t1" (
"var" mediumint(9) DEFAULT NULL,
"rec.var" mediumint(9) DEFAULT NULL
"var" mediumint(8) DEFAULT NULL,
"rec.var" mediumint(8) DEFAULT NULL
)
DROP TABLE t1;
DROP PROCEDURE p1;
@ -1433,8 +1433,8 @@ CALL p1();
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE "t1" (
"var" mediumint(9) DEFAULT NULL,
"rec.var" mediumint(9) DEFAULT NULL
"var" mediumint(8) DEFAULT NULL,
"rec.var" mediumint(8) DEFAULT NULL
)
DROP TABLE t1;
DROP PROCEDURE p1;

74
sql/field.h
View File

@ -777,6 +777,8 @@ public:
dtcollation());
}
bool is_unsigned() const { return flags & UNSIGNED_FLAG; }
/**
Convenience definition of a copy function returned by
Field::get_copy_func()
@ -1983,7 +1985,6 @@ class Field_int :public Field_num
protected:
String *val_str_from_long(String *val_buffer, uint max_char_length,
int radix, long nr);
uint32 sign_length() const { return (flags & UNSIGNED_FLAG) ? 0 : 1; }
public:
Field_int(uchar *ptr_arg, uint32 len_arg, uchar *null_ptr_arg,
uchar null_bit_arg, enum utype unireg_check_arg,
@ -1996,7 +1997,11 @@ public:
bool val_bool() { return val_int() != 0; }
int store_time_dec(const MYSQL_TIME *ltime, uint dec);
bool get_date(MYSQL_TIME *ltime, ulonglong fuzzydate);
virtual uint numeric_precision() const= 0;
virtual const Type_limits_int *type_limits_int() const= 0;
uint32 max_display_length() const
{
return type_limits_int()->char_length();
}
Type_std_attributes type_std_attributes() const
{
/*
@ -2018,7 +2023,8 @@ public:
Information_schema_numeric_attributes
information_schema_numeric_attributes() const
{
return Information_schema_numeric_attributes(numeric_precision(), 0);
uint32 prec= type_limits_int()->precision();
return Information_schema_numeric_attributes(prec, 0);
}
};
@ -2048,17 +2054,9 @@ public:
void sort_string(uchar *buff,uint length);
uint32 pack_length() const { return 1; }
void sql_type(String &str) const;
/*
SIGNED: -128..127 digits=3 nchars=4
UNDIGNED: 0..255 digits=3 nchars=3
*/
uint numeric_precision() const
const Type_limits_int *type_limits_int() const
{
return MAX_TINYINT_WIDTH;
}
uint32 max_display_length() const
{
return MAX_TINYINT_WIDTH + sign_length();
return type_handler_tiny.type_limits_int_by_unsigned_flag(is_unsigned());
}
virtual uchar *pack(uchar* to, const uchar *from, uint max_length)
@ -2109,19 +2107,10 @@ public:
void sort_string(uchar *buff,uint length);
uint32 pack_length() const { return 2; }
void sql_type(String &str) const;
/*
SIGNED: -32768..32767 digits=5 nchars=6
UNDIGNED: 0..65535 digits=5 nchars=5
*/
uint numeric_precision() const
const Type_limits_int *type_limits_int() const
{
return MAX_SMALLINT_WIDTH;
return type_handler_short.type_limits_int_by_unsigned_flag(is_unsigned());
}
uint32 max_display_length() const
{
return MAX_SMALLINT_WIDTH + sign_length();
}
virtual uchar *pack(uchar* to, const uchar *from, uint max_length)
{ return pack_int16(to, from); }
@ -2155,22 +2144,10 @@ public:
void sort_string(uchar *buff,uint length);
uint32 pack_length() const { return 3; }
void sql_type(String &str) const;
/*
MEDIUMINT has a different number of digits for signed and unsigned:
MEDIUMINT SIGNED: -8388608 .. 8388607 digits=7 char_length=8
MEDIUMINT UNSIGNED 0 .. 16777215 digits=8 char_length=8
*/
uint numeric_precision() const
const Type_limits_int *type_limits_int() const
{
uint ndigits= MAX_MEDIUMINT_WIDTH - 1 + MY_TEST(flags & UNSIGNED_FLAG);
return ndigits;
return type_handler_int24.type_limits_int_by_unsigned_flag(is_unsigned());
}
uint32 max_display_length() const
{
// Looks too long for SIGNED: See MDEV-15946
return MAX_MEDIUMINT_WIDTH + sign_length();
}
virtual uchar *pack(uchar* to, const uchar *from, uint max_length)
{
return Field::pack(to, from, max_length);
@ -2209,17 +2186,9 @@ public:
void sort_string(uchar *buff,uint length);
uint32 pack_length() const { return 4; }
void sql_type(String &str) const;
/*
SIGNED: -2147483648..2147483647 digits=10 nchars=11
UNSIGNED: 0..4294967295 digits=10 nchars=10
*/
uint numeric_precision() const
const Type_limits_int *type_limits_int() const
{
return MAX_INT_WIDTH;
}
uint32 max_display_length() const
{
return MAX_INT_WIDTH + sign_length();
return type_handler_long.type_limits_int_by_unsigned_flag(is_unsigned());
}
virtual uchar *pack(uchar* to, const uchar *from,
uint max_length __attribute__((unused)))
@ -2270,15 +2239,10 @@ public:
void sort_string(uchar *buff,uint length);
uint32 pack_length() const { return 8; }
void sql_type(String &str) const;
/*
SIGNED: -9223372036854775808..9223372036854775807 digits=19 nchars=20
UNSIGNED: 0..18446744073709551615 digits=20 nchars=20
*/
uint numeric_precision() const
const Type_limits_int *type_limits_int() const
{
return MAX_BIGINT_WIDTH - sign_length();
return type_handler_longlong.type_limits_int_by_unsigned_flag(is_unsigned());
}
uint32 max_display_length() const { return MAX_BIGINT_WIDTH; }
virtual uchar *pack(uchar* to, const uchar *from,
uint max_length __attribute__((unused)))
{

22
sql/sql_type.cc
View File

@ -465,6 +465,20 @@ const Name
Type_handler_datetime_common::m_name_datetime(STRING_WITH_LEN("datetime")),
Type_handler_timestamp_common::m_name_timestamp(STRING_WITH_LEN("timestamp"));
const Type_limits_int
Type_handler_tiny::m_limits_sint8= Type_limits_sint8(),
Type_handler_tiny::m_limits_uint8= Type_limits_uint8(),
Type_handler_short::m_limits_sint16= Type_limits_sint16(),
Type_handler_short::m_limits_uint16= Type_limits_uint16(),
Type_handler_int24::m_limits_sint24= Type_limits_sint24(),
Type_handler_int24::m_limits_uint24= Type_limits_uint24(),
Type_handler_long::m_limits_sint32= Type_limits_sint32(),
Type_handler_long::m_limits_uint32= Type_limits_uint32(),
Type_handler_longlong::m_limits_sint64= Type_limits_sint64(),
Type_handler_longlong::m_limits_uint64= Type_limits_uint64();
/***************************************************************************/
const Type_handler *Type_handler_null::type_handler_for_comparison() const
@ -2488,6 +2502,14 @@ uint32 Type_handler_bit::max_display_length(const Item *item) const
return item->max_length;
}
uint32 Type_handler_general_purpose_int::max_display_length(const Item *item)
const
{
return type_limits_int_by_unsigned_flag(item->unsigned_flag)->char_length();
}
/*************************************************************************/
int Type_handler_time_common::Item_save_in_field(Item *item, Field *field,

162
sql/sql_type.h
View File

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