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Merge mskold@build.mysql.com:/home/bk/mysql-4.1

Browse Source 
into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1-ndb
This commit is contained in:
mskold@mysql.com
2004-08-19 21:37:58 +02:00
parent 99eef36f24 2d7f4c30a7
commit ba924c0a40
17 changed files with 469 additions and 76 deletions
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26
VC++Files/winmysqladmin/mysql_com.h
View File

@@ -159,28 +159,28 @@ enum enum_field_types { FIELD_TYPE_DECIMAL, FIELD_TYPE_TINY,
/* Shutdown/kill enums and constants */
/* Bits for THD::killable. */
#define KILLABLE_CONNECT (unsigned char)(1 << 0)
#define KILLABLE_TRANS (unsigned char)(1 << 1)
#define KILLABLE_LOCK_TABLE (unsigned char)(1 << 2)
#define KILLABLE_UPDATE (unsigned char)(1 << 3)
#define MYSQL_SHUTDOWN_KILLABLE_CONNECT (unsigned char)(1 << 0)
#define MYSQL_SHUTDOWN_KILLABLE_TRANS (unsigned char)(1 << 1)
#define MYSQL_SHUTDOWN_KILLABLE_LOCK_TABLE (unsigned char)(1 << 2)
#define MYSQL_SHUTDOWN_KILLABLE_UPDATE (unsigned char)(1 << 3)
enum enum_shutdown_level {
enum mysql_enum_shutdown_level {
/*
We want levels to be in growing order of hardness (because we use number
comparisons). Note that DEFAULT does not respect the growing property, but
it's ok.
*/
SHUTDOWN_DEFAULT= 0,
DEFAULT= 0,
/* wait for existing connections to finish */
SHUTDOWN_WAIT_CONNECTIONS= KILLABLE_CONNECT,
WAIT_CONNECTIONS= MYSQL_SHUTDOWN_KILLABLE_CONNECT,
/* wait for existing trans to finish */
SHUTDOWN_WAIT_TRANSACTIONS= KILLABLE_TRANS,
WAIT_TRANSACTIONS= MYSQL_SHUTDOWN_KILLABLE_TRANS,
/* wait for existing updates to finish (=> no partial MyISAM update) */
SHUTDOWN_WAIT_UPDATES= KILLABLE_UPDATE,
WAIT_UPDATES= MYSQL_SHUTDOWN_KILLABLE_UPDATE,
/* flush InnoDB buffers and other storage engines' buffers*/
SHUTDOWN_WAIT_ALL_BUFFERS= (KILLABLE_UPDATE << 1),
WAIT_ALL_BUFFERS= (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1),
/* don't flush InnoDB buffers, flush other storage engines' buffers*/
SHUTDOWN_WAIT_CRITICAL_BUFFERS= (KILLABLE_UPDATE << 1) + 1,
WAIT_CRITICAL_BUFFERS= (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1) + 1,
/* Now the 2 levels of the KILL command */
#if MYSQL_VERSION_ID >= 50000
KILL_QUERY= 254,
@@ -188,10 +188,6 @@ enum enum_shutdown_level {
KILL_CONNECTION= 255
};
/* Same value and type (0, enum_shutdown_level) but not same meaning */
#define NOT_KILLED SHUTDOWN_DEFAULT
extern unsigned long max_allowed_packet;
extern unsigned long net_buffer_length;

2
include/mysql.h
View File

@@ -454,7 +454,7 @@ int STDCALL mysql_add_slave(MYSQL* mysql, const char* host,
const char* passwd);
int STDCALL mysql_shutdown(MYSQL *mysql,
enum enum_shutdown_level
enum mysql_enum_shutdown_level
shutdown_level);
int STDCALL mysql_dump_debug_info(MYSQL *mysql);
int STDCALL mysql_refresh(MYSQL *mysql,

26
include/mysql_com.h
View File

@@ -227,28 +227,28 @@ enum enum_field_types { MYSQL_TYPE_DECIMAL, MYSQL_TYPE_TINY,
/* Shutdown/kill enums and constants */
/* Bits for THD::killable. */
#define KILLABLE_CONNECT (unsigned char)(1 << 0)
#define KILLABLE_TRANS (unsigned char)(1 << 1)
#define KILLABLE_LOCK_TABLE (unsigned char)(1 << 2)
#define KILLABLE_UPDATE (unsigned char)(1 << 3)
#define MYSQL_SHUTDOWN_KILLABLE_CONNECT (unsigned char)(1 << 0)
#define MYSQL_SHUTDOWN_KILLABLE_TRANS (unsigned char)(1 << 1)
#define MYSQL_SHUTDOWN_KILLABLE_LOCK_TABLE (unsigned char)(1 << 2)
#define MYSQL_SHUTDOWN_KILLABLE_UPDATE (unsigned char)(1 << 3)
enum enum_shutdown_level {
enum mysql_enum_shutdown_level {
/*
We want levels to be in growing order of hardness (because we use number
comparisons). Note that DEFAULT does not respect the growing property, but
it's ok.
*/
SHUTDOWN_DEFAULT= 0,
SHUTDOWN_DEFAULT = 0,
/* wait for existing connections to finish */
SHUTDOWN_WAIT_CONNECTIONS= KILLABLE_CONNECT,
SHUTDOWN_WAIT_CONNECTIONS= MYSQL_SHUTDOWN_KILLABLE_CONNECT,
/* wait for existing trans to finish */
SHUTDOWN_WAIT_TRANSACTIONS= KILLABLE_TRANS,
SHUTDOWN_WAIT_TRANSACTIONS= MYSQL_SHUTDOWN_KILLABLE_TRANS,
/* wait for existing updates to finish (=> no partial MyISAM update) */
SHUTDOWN_WAIT_UPDATES= KILLABLE_UPDATE,
SHUTDOWN_WAIT_UPDATES= MYSQL_SHUTDOWN_KILLABLE_UPDATE,
/* flush InnoDB buffers and other storage engines' buffers*/
SHUTDOWN_WAIT_ALL_BUFFERS= (KILLABLE_UPDATE << 1),
SHUTDOWN_WAIT_ALL_BUFFERS= (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1),
/* don't flush InnoDB buffers, flush other storage engines' buffers*/
SHUTDOWN_WAIT_CRITICAL_BUFFERS= (KILLABLE_UPDATE << 1) + 1,
SHUTDOWN_WAIT_CRITICAL_BUFFERS= (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1) + 1,
/* Now the 2 levels of the KILL command */
#if MYSQL_VERSION_ID >= 50000
KILL_QUERY= 254,
@@ -256,10 +256,6 @@ enum enum_shutdown_level {
KILL_CONNECTION= 255
};
/* Same value and type (0, enum_shutdown_level) but not same meaning */
#define NOT_KILLED SHUTDOWN_DEFAULT
/* options for mysql_set_option */
enum enum_mysql_set_option
{

2
libmysql/libmysql.c
View File

@@ -1291,7 +1291,7 @@ mysql_drop_db(MYSQL *mysql, const char *db)
int STDCALL
mysql_shutdown(MYSQL *mysql, enum enum_shutdown_level shutdown_level)
mysql_shutdown(MYSQL *mysql, enum mysql_enum_shutdown_level shutdown_level)
{
uchar level[1];
DBUG_ENTER("mysql_shutdown");

9
myisam/mi_search.c
View File

@@ -396,9 +396,18 @@ int _mi_prefix_search(MI_INFO *info, register MI_KEYDEF *keyinfo, uchar *page,
matched=prefix_len+left;
if (sort_order)
{
for (my_flag=0;left;left--)
if ((my_flag= (int) sort_order[*vseg++] - (int) sort_order[*k++]))
break;
}
else
{
for (my_flag=0;left;left--)
if ((my_flag= (int) *vseg++ - (int) *k++))
break;
}
if (my_flag>0) /* mismatch */
break;

2
mysql-test/r/binary.result
View File

@@ -59,8 +59,10 @@ concat("-",a,"-",b,"-")
-hello-hello-
select concat("-",a,"-",b,"-") from t1 where b="hello ";
concat("-",a,"-",b,"-")
-hello-hello-
select concat("-",a,"-",b,"-") from t1 ignore index (b) where b="hello ";
concat("-",a,"-",b,"-")
-hello-hello-
alter table t1 modify b tinytext not null, drop key b, add key (b(100));
select concat("-",a,"-",b,"-") from t1;
concat("-",a,"-",b,"-")

143
mysql-test/r/ctype_utf8.result
View File

@@ -79,6 +79,21 @@ SELECT 'a\t' < 'a';
SELECT 'a\t' < 'a ';
'a\t' < 'a '
1
SELECT 'a' = 'a ' collate utf8_bin;
'a' = 'a ' collate utf8_bin
1
SELECT 'a\0' < 'a' collate utf8_bin;
'a\0' < 'a' collate utf8_bin
1
SELECT 'a\0' < 'a ' collate utf8_bin;
'a\0' < 'a ' collate utf8_bin
1
SELECT 'a\t' < 'a' collate utf8_bin;
'a\t' < 'a' collate utf8_bin
1
SELECT 'a\t' < 'a ' collate utf8_bin;
'a\t' < 'a ' collate utf8_bin
1
CREATE TABLE t1 (a char(10) character set utf8 not null);
INSERT INTO t1 VALUES ('a'),('a\0'),('a\t'),('a ');
SELECT hex(a),STRCMP(a,'a'), STRCMP(a,'a ') FROM t1;
@@ -362,6 +377,134 @@ c_a
б
drop table t1;
create table t1 (
c char(10) character set utf8,
unique key a using btree (c(1))
) engine=heap;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c` char(10) character set utf8 default NULL,
UNIQUE KEY `a` TYPE BTREE (`c`(1))
) ENGINE=HEAP DEFAULT CHARSET=latin1
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
insert into t1 values ('aa');
ERROR 23000: Duplicate entry 'aa' for key 1
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'aaa' for key 1
insert into t1 values ('б');
insert into t1 values ('бб');
ERROR 23000: Duplicate entry 'б<>' for key 1
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'б<>' for key 1
select c as c_all from t1 order by c;
c_all
a
b
c
d
e
f
б
select c as c_a from t1 where c='a';
c_a
a
select c as c_a from t1 where c='б';
c_a
б
drop table t1;
create table t1 (c varchar(30) character set utf8 collate utf8_bin, unique(c(10)));
insert into t1 values ('1'),('2'),('3'),('x'),('y'),('z');
insert into t1 values ('aaaaaaaaaa');
insert into t1 values ('aaaaaaaaaaa');
ERROR 23000: Duplicate entry 'aaaaaaaaaaa' for key 1
insert into t1 values ('aaaaaaaaaaaa');
ERROR 23000: Duplicate entry 'aaaaaaaaaaaa' for key 1
insert into t1 values (repeat('b',20));
select c c1 from t1 where c='1';
c1
1
select c c2 from t1 where c='2';
c2
2
select c c3 from t1 where c='3';
c3
3
select c cx from t1 where c='x';
cx
x
select c cy from t1 where c='y';
cy
y
select c cz from t1 where c='z';
cz
z
select c ca10 from t1 where c='aaaaaaaaaa';
ca10
aaaaaaaaaa
select c cb20 from t1 where c=repeat('b',20);
cb20
bbbbbbbbbbbbbbbbbbbb
drop table t1;
create table t1 (c char(3) character set utf8 collate utf8_bin, unique (c(2)));
insert into t1 values ('1'),('2'),('3'),('4'),('x'),('y'),('z');
insert into t1 values ('a');
insert into t1 values ('aa');
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'aaa' for key 1
insert into t1 values ('b');
insert into t1 values ('bb');
insert into t1 values ('bbb');
ERROR 23000: Duplicate entry 'bbb' for key 1
insert into t1 values ('а');
insert into t1 values ('аа');
insert into t1 values ('ааа');
ERROR 23000: Duplicate entry 'ааа' for key 1
insert into t1 values ('б');
insert into t1 values ('бб');
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'ббб' for key 1
insert into t1 values ('ꪪ');
insert into t1 values ('ꪪꪪ');
insert into t1 values ('ꪪꪪꪪ');
ERROR 23000: Duplicate entry 'ꪪꪪ' for key 1
drop table t1;
create table t1 (
c char(10) character set utf8 collate utf8_bin,
unique key a using hash (c(1))
) engine=heap;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c` char(10) character set utf8 collate utf8_bin default NULL,
UNIQUE KEY `a` (`c`(1))
) ENGINE=HEAP DEFAULT CHARSET=latin1
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
insert into t1 values ('aa');
ERROR 23000: Duplicate entry 'aa' for key 1
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'aaa' for key 1
insert into t1 values ('б');
insert into t1 values ('бб');
ERROR 23000: Duplicate entry 'б<>' for key 1
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'б<>' for key 1
select c as c_all from t1 order by c;
c_all
a
b
c
d
e
f
б
select c as c_a from t1 where c='a';
c_a
a
select c as c_a from t1 where c='б';
c_a
б
drop table t1;
create table t1 (
c char(10) character set utf8 collate utf8_bin,
unique key a using btree (c(1))
) engine=heap;

2
mysql-test/r/endspace.result
View File

@@ -19,7 +19,7 @@ select 'a a' > 'a', 'a \0' < 'a';
1 1
select binary 'a a' > 'a', binary 'a \0' > 'a', binary 'a\0' > 'a';
binary 'a a' > 'a' binary 'a \0' > 'a' binary 'a\0' > 'a'
1 1 1
1 0 0
create table t1 (text1 varchar(32) not NULL, KEY key1 (text1));
insert into t1 values ('teststring'), ('nothing'), ('teststring\t');
check table t1;

1
mysql-test/r/myisam.result
View File

@@ -412,6 +412,7 @@ aaa.
aaa .
select concat(a,'.') from t1 where binary a='aaa';
concat(a,'.')
aaa .
aaa.
update t1 set a='bbb' where a='aaa';
select concat(a,'.') from t1;

113
mysql-test/t/ctype_utf8.test
View File

@@ -46,6 +46,15 @@ SELECT 'a\0' < 'a ';
SELECT 'a\t' < 'a';
SELECT 'a\t' < 'a ';
#
# The same for binary collation
#
SELECT 'a' = 'a ' collate utf8_bin;
SELECT 'a\0' < 'a' collate utf8_bin;
SELECT 'a\0' < 'a ' collate utf8_bin;
SELECT 'a\t' < 'a' collate utf8_bin;
SELECT 'a\t' < 'a ' collate utf8_bin;
CREATE TABLE t1 (a char(10) character set utf8 not null);
INSERT INTO t1 VALUES ('a'),('a\0'),('a\t'),('a ');
SELECT hex(a),STRCMP(a,'a'), STRCMP(a,'a ') FROM t1;
@@ -189,7 +198,7 @@ drop table t2;
#
# Bug 4521: unique key prefix interacts poorly with utf8
# Check keys with prefix compression
# MYISAM: keys with prefix compression, case insensitive collation.
#
create table t1 (c varchar(30) character set utf8, unique(c(10)));
insert into t1 values ('1'),('2'),('3'),('x'),('y'),('z');
@@ -211,7 +220,8 @@ drop table t1;
#
# Bug 4521: unique key prefix interacts poorly with utf8
# Check fixed length keys
# MYISAM: fixed length keys, case insensitive collation
#
create table t1 (c char(3) character set utf8, unique (c(2)));
insert into t1 values ('1'),('2'),('3'),('4'),('x'),('y'),('z');
insert into t1 values ('a');
@@ -265,6 +275,105 @@ drop table t1;
# Check HEAP+BTREE, case insensitive collation
#
create table t1 (
c char(10) character set utf8,
unique key a using btree (c(1))
) engine=heap;
show create table t1;
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
--error 1062
insert into t1 values ('aa');
--error 1062
insert into t1 values ('aaa');
insert into t1 values ('б');
--error 1062
insert into t1 values ('бб');
--error 1062
insert into t1 values ('ббб');
select c as c_all from t1 order by c;
select c as c_a from t1 where c='a';
select c as c_a from t1 where c='б';
drop table t1;
#
# Bug 4521: unique key prefix interacts poorly with utf8
# MYISAM: keys with prefix compression, binary collation.
#
create table t1 (c varchar(30) character set utf8 collate utf8_bin, unique(c(10)));
insert into t1 values ('1'),('2'),('3'),('x'),('y'),('z');
insert into t1 values ('aaaaaaaaaa');
--error 1062
insert into t1 values ('aaaaaaaaaaa');
--error 1062
insert into t1 values ('aaaaaaaaaaaa');
insert into t1 values (repeat('b',20));
select c c1 from t1 where c='1';
select c c2 from t1 where c='2';
select c c3 from t1 where c='3';
select c cx from t1 where c='x';
select c cy from t1 where c='y';
select c cz from t1 where c='z';
select c ca10 from t1 where c='aaaaaaaaaa';
select c cb20 from t1 where c=repeat('b',20);
drop table t1;
#
# Bug 4521: unique key prefix interacts poorly with utf8
# MYISAM: fixed length keys, binary collation
#
create table t1 (c char(3) character set utf8 collate utf8_bin, unique (c(2)));
insert into t1 values ('1'),('2'),('3'),('4'),('x'),('y'),('z');
insert into t1 values ('a');
insert into t1 values ('aa');
--error 1062
insert into t1 values ('aaa');
insert into t1 values ('b');
insert into t1 values ('bb');
--error 1062
insert into t1 values ('bbb');
insert into t1 values ('а');
insert into t1 values ('аа');
--error 1062
insert into t1 values ('ааа');
insert into t1 values ('б');
insert into t1 values ('бб');
--error 1062
insert into t1 values ('ббб');
insert into t1 values ('ꪪ');
insert into t1 values ('ꪪꪪ');
--error 1062
insert into t1 values ('ꪪꪪꪪ');
drop table t1;
#
# Bug 4531: unique key prefix interacts poorly with utf8
# Check HEAP+HASH, binary collation
#
create table t1 (
c char(10) character set utf8 collate utf8_bin,
unique key a using hash (c(1))
) engine=heap;
show create table t1;
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
--error 1062
insert into t1 values ('aa');
--error 1062
insert into t1 values ('aaa');
insert into t1 values ('б');
--error 1062
insert into t1 values ('бб');
--error 1062
insert into t1 values ('ббб');
select c as c_all from t1 order by c;
select c as c_a from t1 where c='a';
select c as c_a from t1 where c='б';
drop table t1;
#
# Bug 4531: unique key prefix interacts poorly with utf8
# Check HEAP+BTREE, binary collation
#
create table t1 (
c char(10) character set utf8 collate utf8_bin,
unique key a using btree (c(1))
) engine=heap;

2
sql/field.h
View File

@@ -357,7 +357,7 @@ public:
uint size_of() const { return sizeof(*this); }
CHARSET_INFO *charset(void) const { return field_charset; }
void set_charset(CHARSET_INFO *charset) { field_charset=charset; }
bool binary() const { return field_charset->state & MY_CS_BINSORT ? 1 : 0; }
bool binary() const { return field_charset == &my_charset_bin; }
uint32 max_length() { return field_length; }
friend class create_field;
};

4
sql/ha_berkeley.cc
View File

@@ -357,8 +357,10 @@ ulong ha_berkeley::index_flags(uint idx, uint part, bool all_parts) const
case HA_KEYTYPE_VARTEXT:
/*
As BDB stores only one copy of equal strings, we can't use key read
on these
on these. Binary collations do support key read though.
*/
if (!(table->key_info[idx].key_part[i].field->charset()->state
& MY_CS_BINSORT))
flags&= ~HA_KEYREAD_ONLY;
break;
default: // Keep compiler happy

2
sql/ha_heap.cc
View File

@@ -430,7 +430,7 @@ int ha_heap::create(const char *name, TABLE *table_arg,
{
if (!f_is_packed(flag) &&
f_packtype(flag) == (int) FIELD_TYPE_DECIMAL &&
!(flag & FIELDFLAG_BINARY))
!(field->charset() == &my_charset_bin))
seg->type= (int) HA_KEYTYPE_TEXT;
else
seg->type= (int) HA_KEYTYPE_BINARY;

4
sql/item_cmpfunc.cc
View File

@@ -303,10 +303,10 @@ int Arg_comparator::set_compare_func(Item_bool_func2 *item, Item_result type)
my_coll_agg_error((*a)->collation, (*b)->collation, owner->func_name());
return 1;
}
if (my_binary_compare(cmp_collation.collation))
if (cmp_collation.collation == &my_charset_bin)
{
/*
We are using binary collation, change to compare byte by byte,
We are using BLOB/BINARY/VARBINARY, change to compare byte by byte,
without removing end space
*/
if (func == &Arg_comparator::compare_string)

4
sql/sql_parse.cc
View File

@@ -1643,8 +1643,8 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
SHUTDOWN_DEFAULT is 0. If client is >= 4.1.3, the shutdown level is in
packet[0].
*/
enum enum_shutdown_level level=
(enum enum_shutdown_level) (uchar) packet[0];
enum mysql_enum_shutdown_level level=
(enum mysql_enum_shutdown_level) (uchar) packet[0];
DBUG_PRINT("quit",("Got shutdown command for level %u", level));
if (level == SHUTDOWN_DEFAULT)
level= SHUTDOWN_WAIT_ALL_BUFFERS; // soon default will be configurable

128
strings/ctype-bin.c
View File

@@ -68,27 +68,6 @@ static uchar bin_char_array[] =
/*
Compare two strings. Result is sign(first_argument - second_argument)
SYNOPSIS
my_strnncoll_binary()
cs Chararacter set
s String to compare
slen Length of 's'
t String to compare
tlen Length of 't'
NOTE
This is used also when comparing with end space removal, as end space
is significant for binary strings
RETURN
< 0 s < t
0 s == t
> 0 s > t
*/
static int my_strnncoll_binary(CHARSET_INFO * cs __attribute__((unused)),
const uchar *s, uint slen,
const uchar *t, uint tlen,
@@ -100,6 +79,28 @@ static int my_strnncoll_binary(CHARSET_INFO * cs __attribute__((unused)),
}
/*
Compare two strings. Result is sign(first_argument - second_argument)
SYNOPSIS
my_strnncollsp_binary()
cs Chararacter set
s String to compare
slen Length of 's'
t String to compare
tlen Length of 't'
NOTE
This function is used for real binary strings, i.e. for
BLOB, BINARY(N) and VARBINARY(N).
It does not ignore trailing spaces.
RETURN
< 0 s < t
0 s == t
> 0 s > t
*/
static int my_strnncollsp_binary(CHARSET_INFO * cs __attribute__((unused)),
const uchar *s, uint slen,
const uchar *t, uint tlen)
@@ -108,6 +109,75 @@ static int my_strnncollsp_binary(CHARSET_INFO * cs __attribute__((unused)),
}
static int my_strnncoll_8bit_bin(CHARSET_INFO * cs __attribute__((unused)),
const uchar *s, uint slen,
const uchar *t, uint tlen,
my_bool t_is_prefix)
{
uint len=min(slen,tlen);
int cmp= memcmp(s,t,len);
return cmp ? cmp : (int)((t_is_prefix ? len : slen) - tlen);
}
/*
Compare two strings. Result is sign(first_argument - second_argument)
SYNOPSIS
my_strnncollsp_8bit_bin()
cs Chararacter set
s String to compare
slen Length of 's'
t String to compare
tlen Length of 't'
NOTE
This function is used for character strings with binary collations.
It ignores trailing spaces.
RETURN
< 0 s < t
0 s == t
> 0 s > t
*/
static int my_strnncollsp_8bit_bin(CHARSET_INFO * cs __attribute__((unused)),
const uchar *a, uint a_length,
const uchar *b, uint b_length)
{
const uchar *end;
uint length;
end= a + (length= min(a_length, b_length));
while (a < end)
{
if (*a++ != *b++)
return ((int) a[-1] - (int) b[-1]);
}
if (a_length != b_length)
{
int swap= 0;
/*
Check the next not space character of the longer key. If it's < ' ',
then it's smaller than the other key.
*/
if (a_length < b_length)
{
/* put shorter key in s */
a_length= b_length;
a= b;
swap= -1; /* swap sign of result */
}
for (end= a + a_length-length; a < end ; a++)
{
if (*a != ' ')
return ((int) *a - (int) ' ') ^ swap;
}
}
return 0;
}
/* This function is used for all conversion functions */
static void my_case_str_bin(CHARSET_INFO *cs __attribute__((unused)),
@@ -342,6 +412,20 @@ skip:
MY_COLLATION_HANDLER my_collation_8bit_bin_handler =
{
NULL, /* init */
my_strnncoll_8bit_bin,
my_strnncollsp_8bit_bin,
my_strnxfrm_bin,
my_like_range_simple,
my_wildcmp_bin,
my_strcasecmp_bin,
my_instr_bin,
my_hash_sort_bin
};
static MY_COLLATION_HANDLER my_collation_binary_handler =
{
NULL, /* init */
my_strnncoll_binary,
@@ -407,5 +491,5 @@ CHARSET_INFO my_charset_bin =
0, /* min_sort_char */
255, /* max_sort_char */
&my_charset_handler,
&my_collation_8bit_bin_handler
&my_collation_binary_handler
};

57
strings/ctype-mb.c
View File

@@ -360,11 +360,62 @@ static int my_strnncoll_mb_bin(CHARSET_INFO * cs __attribute__((unused)),
return cmp ? cmp : (int) ((t_is_prefix ? len : slen) - tlen);
}
/*
Compare two strings.
SYNOPSIS
my_strnncollsp_mb_bin()
cs Chararacter set
s String to compare
slen Length of 's'
t String to compare
tlen Length of 't'
NOTE
This function is used for character strings with binary collations.
It ignores trailing spaces.
RETURN
A negative number if s < t
A positive number if s > t
0 if strings are equal
*/
static int my_strnncollsp_mb_bin(CHARSET_INFO * cs __attribute__((unused)),
const uchar *s, uint slen,
const uchar *t, uint tlen)
const uchar *a, uint a_length,
const uchar *b, uint b_length)
{
return my_strnncoll_mb_bin(cs,s,slen,t,tlen,0);
const uchar *end;
uint length;
end= a + (length= min(a_length, b_length));
while (a < end)
{
if (*a++ != *b++)
return ((int) a[-1] - (int) b[-1]);
}
if (a_length != b_length)
{
int swap= 0;
/*
Check the next not space character of the longer key. If it's < ' ',
then it's smaller than the other key.
*/
if (a_length < b_length)
{
/* put shorter key in s */
a_length= b_length;
a= b;
swap= -1; /* swap sign of result */
}
for (end= a + a_length-length; a < end ; a++)
{
if (*a != ' ')
return ((int) *a - (int) ' ') ^ swap;
}
}
return 0;
}