Skip to content

M
MariaDB
Commit ba924c0a authored by mskold@mysql.com's avatar mskold@mysql.com
Browse files
Options

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

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1-ndb
parents 99eef36f 2d7f4c30
Show whitespace changes
Inline Side-by-side
Showing with 454 additions and 61 deletions
VC++Files/winmysqladmin/mysql_com.h
View file @ ba924c0a
......@@ -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;
......
include/mysql.h
View file @ ba924c0a
......@@ -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,
......
include/mysql_com.h
View file @ ba924c0a
......@@ -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
{
......
libmysql/libmysql.c
View file @ ba924c0a
......@@ -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");
......
myisam/mi_search.c
View file @ ba924c0a
......@@ -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;
......
mysql-test/r/binary.result
View file @ ba924c0a
......@@ -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,"-")
......
mysql-test/r/ctype_utf8.result
View file @ ba924c0a
......@@ -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;
......
mysql-test/r/endspace.result
View file @ ba924c0a
......@@ -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;
......
mysql-test/r/myisam.result
View file @ ba924c0a
......@@ -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;
......
mysql-test/t/ctype_utf8.test
View file @ ba924c0a
......@@ -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;
......
sql/field.h
View file @ ba924c0a
......@@ -357,7 +357,7 @@ class Field_str :public Field {
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;
};
......
sql/ha_berkeley.cc
View file @ ba924c0a
......@@ -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
......
sql/ha_heap.cc
View file @ ba924c0a
......@@ -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;
......
sql/item_cmpfunc.cc
View file @ ba924c0a
......@@ -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)
......
sql/sql_parse.cc
View file @ ba924c0a
......@@ -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
......
strings/ctype-bin.c
View file @ ba924c0a
......@@ -68,11 +68,22 @@ static uchar bin_char_array[] =
static int my_strnncoll_binary(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_strnncoll_binary()
my_strnncollsp_binary()
cs Chararacter set
s String to compare
slen Length of 's'
......@@ -80,8 +91,9 @@ static uchar bin_char_array[] =
tlen Length of 't'
NOTE
This is used also when comparing with end space removal, as end space
is significant for binary strings
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
......@@ -89,7 +101,15 @@ static uchar bin_char_array[] =
> 0 s > t
*/
static int my_strnncoll_binary(CHARSET_INFO * cs __attribute__((unused)),
static int my_strnncollsp_binary(CHARSET_INFO * cs __attribute__((unused)),
const uchar *s, uint slen,
const uchar *t, uint tlen)
{
return my_strnncoll_binary(cs,s,slen,t,tlen,0);
}
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)
......@@ -100,11 +120,61 @@ static int my_strnncoll_binary(CHARSET_INFO * cs __attribute__((unused)),
}
static int my_strnncollsp_binary(CHARSET_INFO * cs __attribute__((unused)),
const uchar *s, uint slen,
const uchar *t, uint 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)
{
return my_strnncoll_binary(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;
}
......@@ -342,6 +412,20 @@ uint my_instr_bin(CHARSET_INFO *cs __attribute__((unused)),
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
};
strings/ctype-mb.c
View file @ ba924c0a
......@@ -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;
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7