Merge mysql.com:/nfsdisk1/lars/bkroot/mysql-5.0-rpl

into  mysql.com:/nfsdisk1/lars/MERGE/mysql-5.0-merge


sql/mysqld.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
This commit is contained in:
unknown 2007-03-31 00:15:20 +02:00
commit f47c23288a
22 changed files with 346 additions and 58 deletions

View File

@ -6,6 +6,6 @@ path=`dirname $0`
extra_flags="$pentium_cflags $debug_cflags $max_cflags"
c_warnings="$c_warnings $debug_extra_warnings"
cxx_warnings="$cxx_warnings $debug_extra_warnings"
extra_configs="$pentium_configs $debug_configs $max_configs"
extra_configs="$pentium_configs $debug_configs $max_configs --with-experimental-collations"
. "$path/FINISH.sh"

View File

@ -2529,7 +2529,8 @@ print_table_data_xml(MYSQL_RES *result)
tee_fputs("<?xml version=\"1.0\"?>\n\n<resultset statement=\"", PAGER);
xmlencode_print(glob_buffer.ptr(), (int)strlen(glob_buffer.ptr()));
tee_fputs("\">", PAGER);
tee_fputs("\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">",
PAGER);
fields = mysql_fetch_fields(result);
while ((cur = mysql_fetch_row(result)))

View File

@ -429,3 +429,16 @@ then
else
AC_MSG_RESULT(no)
fi
# Shall we build experimental collations
AC_ARG_WITH(experimental-collations,
[],
[with_exp_coll=$withval],
[with_exp_coll=no]
)
if test "$with_exp_coll" = "yes"
then
AC_DEFINE([HAVE_UTF8_GENERAL_CS], [1], [certain Japanese customer])
fi

View File

@ -7,7 +7,7 @@ insert into t1 values (1, 2, 'a&b a<b a>b');
<?xml version="1.0"?>
<resultset statement="select * from t1
">
" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<field name="a&amp;b">1</field>
<field name="a&lt;b">2</field>
@ -34,7 +34,7 @@ insert into t1 values (1, 2, 'a&b a<b a>b');
<?xml version="1.0"?>
<resultset statement="select count(*) from t1
">
" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<field name="count(*)">1</field>
</row>
@ -42,7 +42,7 @@ insert into t1 values (1, 2, 'a&b a<b a>b');
<?xml version="1.0"?>
<resultset statement="select 1 &lt; 2 from dual
">
" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<field name="1 &lt; 2">1</field>
</row>
@ -50,7 +50,7 @@ insert into t1 values (1, 2, 'a&b a<b a>b');
<?xml version="1.0"?>
<resultset statement="select 1 &gt; 2 from dual
">
" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<field name="1 &gt; 2">0</field>
</row>
@ -58,7 +58,7 @@ insert into t1 values (1, 2, 'a&b a<b a>b');
<?xml version="1.0"?>
<resultset statement="select 1 &amp; 3 from dual
">
" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<field name="1 &amp; 3">1</field>
</row>
@ -66,7 +66,7 @@ insert into t1 values (1, 2, 'a&b a<b a>b');
<?xml version="1.0"?>
<resultset statement="select null from dual
">
" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<row>
<field name="NULL" xsi:nil="true" />
</row>

View File

@ -2654,3 +2654,12 @@ ii 2 ii 2 İİ 4
İİ 4 ii 2 İİ 4
II 2 ıı 4 II 2
DROP TABLE t1;
CREATE TABLE t1 (
c1 text character set ucs2 collate ucs2_polish_ci NOT NULL
) ENGINE=MyISAM;
insert into t1 values (''),('a');
SELECT COUNT(*), c1 FROM t1 GROUP BY c1;
COUNT(*) c1
1
1 a
DROP TABLE IF EXISTS t1;

View File

@ -839,6 +839,24 @@ lily
river
drop table t1;
deallocate prepare stmt;
set names latin1;
set character_set_connection=ucs2;
select soundex(''),soundex('he'),soundex('hello all folks'),soundex('#3556 in bugdb');
soundex('') soundex('he') soundex('hello all folks') soundex('#3556 in bugdb')
H000 H4142 I51231
select hex(soundex('')),hex(soundex('he')),hex(soundex('hello all folks')),hex(soundex('#3556 in bugdb'));
hex(soundex('')) hex(soundex('he')) hex(soundex('hello all folks')) hex(soundex('#3556 in bugdb'))
0048003000300030 00480034003100340032 004900350031003200330031
select 'mood' sounds like 'mud';
'mood' sounds like 'mud'
1
select hex(soundex(_ucs2 0x041004110412));
hex(soundex(_ucs2 0x041004110412))
0410003000300030
select hex(soundex(_ucs2 0x00BF00C0));
hex(soundex(_ucs2 0x00BF00C0))
00C0003000300030
set names latin1;
create table t1(a blob, b text charset utf8, c text charset ucs2);
select data_type, character_octet_length, character_maximum_length
from information_schema.columns where table_name='t1';

View File

@ -854,6 +854,18 @@ select * from t1 where soundex(a) = soundex('test');
id a
1 Test
drop table t1;
select soundex(_utf8 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB);
soundex(_utf8 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB)
阅000
select hex(soundex(_utf8 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB));
hex(soundex(_utf8 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB))
E99885303030
select soundex(_utf8 0xD091D092D093);
soundex(_utf8 0xD091D092D093)
Б000
select hex(soundex(_utf8 0xD091D092D093));
hex(soundex(_utf8 0xD091D092D093))
D091303030
SET collation_connection='utf8_general_ci';
create table t1 select repeat('a',4000) a;
delete from t1;

View File

@ -18,6 +18,29 @@ create table t2 like t1;
load data local infile 'MYSQLTEST_VARDIR/master-data/test/rpl_misc_functions.outfile' into table t2;
select * from t1, t2 where (t1.id=t2.id) and not(t1.i=t2.i and t1.r1=t2.r1 and t1.r2=t2.r2 and t1.p=t2.p);
id i r1 r2 p id i r1 r2 p
stop slave;
drop table t1;
drop table t1;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (col_a double default NULL);
CREATE PROCEDURE test_replication_sp1()
BEGIN
INSERT INTO t1 VALUES (rand()), (rand());
INSERT INTO t1 VALUES (rand());
END|
CREATE PROCEDURE test_replication_sp2()
BEGIN
CALL test_replication_sp1();
CALL test_replication_sp1();
END|
CREATE FUNCTION test_replication_sf() RETURNS DOUBLE DETERMINISTIC
BEGIN
RETURN (rand() + rand());
END|
CALL test_replication_sp1();
CALL test_replication_sp2();
INSERT INTO t1 VALUES (test_replication_sf());
INSERT INTO t1 VALUES (test_replication_sf());
INSERT INTO t1 VALUES (test_replication_sf());
DROP PROCEDURE IF EXISTS test_replication_sp1;
DROP PROCEDURE IF EXISTS test_replication_sp2;
DROP FUNCTION IF EXISTS test_replication_sf;
DROP TABLE IF EXISTS t1;

View File

@ -475,3 +475,13 @@ ALTER TABLE t1 MODIFY a VARCHAR(30) character set utf8 collate utf8_turkish_ci;
SELECT a, length(a) la, @l:=lower(a) l, length(@l) ll, @u:=upper(a) u, length(@u) lu
FROM t1 ORDER BY id;
DROP TABLE t1;
#
# Bug #27079 Crash while grouping empty ucs2 strings
#
CREATE TABLE t1 (
c1 text character set ucs2 collate ucs2_polish_ci NOT NULL
) ENGINE=MyISAM;
insert into t1 values (''),('a');
SELECT COUNT(*), c1 FROM t1 GROUP BY c1;
DROP TABLE IF EXISTS t1;

View File

@ -572,6 +572,20 @@ select utext from t1 where utext like '%%';
drop table t1;
deallocate prepare stmt;
#
# Bug#22638 SOUNDEX broken for international characters
#
set names latin1;
set character_set_connection=ucs2;
select soundex(''),soundex('he'),soundex('hello all folks'),soundex('#3556 in bugdb');
select hex(soundex('')),hex(soundex('he')),hex(soundex('hello all folks')),hex(soundex('#3556 in bugdb'));
select 'mood' sounds like 'mud';
# Cyrillic A, BE, VE
select hex(soundex(_ucs2 0x041004110412));
# Make sure that "U+00BF INVERTED QUESTION MARK" is not considered as letter
select hex(soundex(_ucs2 0x00BF00C0));
set names latin1;
#
# Bug #14290: character_maximum_length for text fields
#

View File

@ -702,6 +702,14 @@ select * from t1 where soundex(a) = soundex('TEST');
select * from t1 where soundex(a) = soundex('test');
drop table t1;
#
# Bug#22638 SOUNDEX broken for international characters
#
select soundex(_utf8 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB);
select hex(soundex(_utf8 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB));
select soundex(_utf8 0xD091D092D093);
select hex(soundex(_utf8 0xD091D092D093));
SET collation_connection='utf8_general_ci';
-- source include/ctype_filesort.inc

View File

@ -28,10 +28,76 @@ create table t2 like t1;
eval load data local infile '$MYSQLTEST_VARDIR/master-data/test/rpl_misc_functions.outfile' into table t2;
# compare them with the replica; the SELECT below should return no row
select * from t1, t2 where (t1.id=t2.id) and not(t1.i=t2.i and t1.r1=t2.r1 and t1.r2=t2.r2 and t1.p=t2.p);
stop slave;
drop table t1;
connection master;
drop table t1;
# End of 4.1 tests
#
# BUG#25543 test calling rand() multiple times on the master in
# a stored procedure.
#
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (col_a double default NULL);
DELIMITER |;
# Use a SP that calls rand() multiple times
CREATE PROCEDURE test_replication_sp1()
BEGIN
INSERT INTO t1 VALUES (rand()), (rand());
INSERT INTO t1 VALUES (rand());
END|
# Use a SP that calls another SP to call rand() multiple times
CREATE PROCEDURE test_replication_sp2()
BEGIN
CALL test_replication_sp1();
CALL test_replication_sp1();
END|
# Use a SF that calls rand() multiple times
CREATE FUNCTION test_replication_sf() RETURNS DOUBLE DETERMINISTIC
BEGIN
RETURN (rand() + rand());
END|
DELIMITER ;|
# Exercise the functions and procedures then compare the results on
# the master to those on the slave.
CALL test_replication_sp1();
CALL test_replication_sp2();
INSERT INTO t1 VALUES (test_replication_sf());
INSERT INTO t1 VALUES (test_replication_sf());
INSERT INTO t1 VALUES (test_replication_sf());
# Record the results of the query on the master
--exec $MYSQL --port=$MASTER_MYPORT test -e "SELECT * FROM test.t1" > $MYSQLTEST_VARDIR/tmp/rpl_rand_master.sql
--sync_slave_with_master
# Record the results of the query on the slave
--exec $MYSQL --port=$SLAVE_MYPORT test -e "SELECT * FROM test.t1" > $MYSQLTEST_VARDIR/tmp/rpl_rand_slave.sql
# Compare the results from the master to the slave.
--exec diff $MYSQLTEST_VARDIR/tmp/rpl_rand_master.sql $MYSQLTEST_VARDIR/tmp/rpl_rand_slave.sql
# Cleanup
connection master;
--disable_warnings
DROP PROCEDURE IF EXISTS test_replication_sp1;
DROP PROCEDURE IF EXISTS test_replication_sp2;
DROP FUNCTION IF EXISTS test_replication_sf;
DROP TABLE IF EXISTS t1;
--enable_warnings
--sync_slave_with_master
# If all is good, when can cleanup our dump files.
--system rm $MYSQLTEST_VARDIR/tmp/rpl_rand_master.sql
--system rm $MYSQLTEST_VARDIR/tmp/rpl_rand_slave.sql

View File

@ -1805,7 +1805,8 @@ void Item_func_soundex::fix_length_and_dec()
{
collation.set(args[0]->collation);
max_length=args[0]->max_length;
set_if_bigger(max_length,4);
set_if_bigger(max_length, 4 * collation.collation->mbminlen);
tmp_value.set_charset(collation.collation);
}
@ -1815,14 +1816,15 @@ void Item_func_soundex::fix_length_and_dec()
else return 0
*/
static char soundex_toupper(char ch)
static int soundex_toupper(int ch)
{
return (ch >= 'a' && ch <= 'z') ? ch - 'a' + 'A' : ch;
}
static char get_scode(char *ptr)
static char get_scode(int wc)
{
uchar ch= soundex_toupper(*ptr);
int ch= soundex_toupper(wc);
if (ch < 'A' || ch > 'Z')
{
// Thread extended alfa (country spec)
@ -1832,46 +1834,121 @@ static char get_scode(char *ptr)
}
static bool my_uni_isalpha(int wc)
{
/*
Return true for all Basic Latin letters: a..z A..Z.
Return true for all Unicode characters with code higher than U+00C0:
- characters between 'z' and U+00C0 are controls and punctuations.
- "U+00C0 LATIN CAPITAL LETTER A WITH GRAVE" is the first letter after 'z'.
*/
return (wc >= 'a' && wc <= 'z') ||
(wc >= 'A' && wc <= 'Z') ||
(wc >= 0xC0);
}
String *Item_func_soundex::val_str(String *str)
{
DBUG_ASSERT(fixed == 1);
String *res =args[0]->val_str(str);
char last_ch,ch;
CHARSET_INFO *cs= collation.collation;
my_wc_t wc;
uint nchars;
int rc;
if ((null_value=args[0]->null_value))
if ((null_value= args[0]->null_value))
return 0; /* purecov: inspected */
if (tmp_value.alloc(max(res->length(),4)))
if (tmp_value.alloc(max(res->length(), 4 * cs->mbminlen)))
return str; /* purecov: inspected */
char *to= (char *) tmp_value.ptr();
char *from= (char *) res->ptr(), *end=from+res->length();
tmp_value.set_charset(cs);
char *to_end= to + tmp_value.alloced_length();
char *from= (char *) res->ptr(), *end= from + res->length();
while (from != end && !my_isalpha(cs,*from)) // Skip pre-space
from++; /* purecov: inspected */
if (from == end)
return &my_empty_string; // No alpha characters.
*to++ = soundex_toupper(*from); // Copy first letter
last_ch = get_scode(from); // code of the first letter
// for the first 'double-letter check.
// Loop on input letters until
// end of input (null) or output
// letter code count = 3
for (from++ ; from < end ; from++)
for ( ; ; ) /* Skip pre-space */
{
if (!my_isalpha(cs,*from))
continue;
ch=get_scode(from);
if ((rc= cs->cset->mb_wc(cs, &wc, (uchar*) from, (uchar*) end)) <= 0)
return &my_empty_string; /* EOL or invalid byte sequence */
if (rc == 1 && cs->ctype)
{
/* Single byte letter found */
if (my_isalpha(cs, *from))
{
last_ch= get_scode(*from); // Code of the first letter
*to++= soundex_toupper(*from++); // Copy first letter
break;
}
from++;
}
else
{
from+= rc;
if (my_uni_isalpha(wc))
{
/* Multibyte letter found */
wc= soundex_toupper(wc);
last_ch= get_scode(wc); // Code of the first letter
if ((rc= cs->cset->wc_mb(cs, wc, (uchar*) to, (uchar*) to_end)) <= 0)
{
/* Extra safety - should not really happen */
DBUG_ASSERT(false);
return &my_empty_string;
}
to+= rc;
break;
}
}
}
/*
last_ch is now set to the first 'double-letter' check.
loop on input letters until end of input
*/
for (nchars= 1 ; ; )
{
if ((rc= cs->cset->mb_wc(cs, &wc, (uchar*) from, (uchar*) end)) <= 0)
break; /* EOL or invalid byte sequence */
if (rc == 1 && cs->ctype)
{
if (!my_isalpha(cs, *from++))
continue;
}
else
{
from+= rc;
if (!my_uni_isalpha(wc))
continue;
}
ch= get_scode(wc);
if ((ch != '0') && (ch != last_ch)) // if not skipped or double
{
*to++ = ch; // letter, copy to output
last_ch = ch; // save code of last input letter
} // for next double-letter check
// letter, copy to output
if ((rc= cs->cset->wc_mb(cs, (my_wc_t) ch,
(uchar*) to, (uchar*) to_end)) <= 0)
{
// Extra safety - should not really happen
DBUG_ASSERT(false);
break;
}
to+= rc;
nchars++;
last_ch= ch; // save code of last input letter
} // for next double-letter check
}
for (end=(char*) tmp_value.ptr()+4 ; to < end ; to++)
*to = '0';
*to=0; // end string
/* Pad up to 4 characters with DIGIT ZERO, if the string is shorter */
if (nchars < 4)
{
uint nbytes= (4 - nchars) * cs->mbminlen;
cs->cset->fill(cs, to, nbytes, '0');
to+= nbytes;
}
tmp_value.length((uint) (to-tmp_value.ptr()));
return &tmp_value;
}

View File

@ -544,7 +544,7 @@ TABLE_LIST *mysql_lock_have_duplicate(THD *thd, TABLE_LIST *needle,
goto end;
/* A temporary table does not have locks. */
if (table->s->tmp_table == TMP_TABLE)
if (table->s->tmp_table == NON_TRANSACTIONAL_TMP_TABLE)
goto end;
/* Get command lock or LOCK TABLES lock. Maybe empty for INSERT DELAYED. */
@ -569,7 +569,7 @@ TABLE_LIST *mysql_lock_have_duplicate(THD *thd, TABLE_LIST *needle,
if (haystack->placeholder())
continue;
table2= haystack->table;
if (table2->s->tmp_table == TMP_TABLE)
if (table2->s->tmp_table == NON_TRANSACTIONAL_TMP_TABLE)
continue;
/* All tables in list must be in lock. */
@ -655,7 +655,7 @@ static MYSQL_LOCK *get_lock_data(THD *thd, TABLE **table_ptr, uint count,
*write_lock_used=0;
for (i=tables=lock_count=0 ; i < count ; i++)
{
if (table_ptr[i]->s->tmp_table != TMP_TABLE)
if (table_ptr[i]->s->tmp_table != NON_TRANSACTIONAL_TMP_TABLE)
{
tables+=table_ptr[i]->file->lock_count();
lock_count++;
@ -697,7 +697,7 @@ static MYSQL_LOCK *get_lock_data(THD *thd, TABLE **table_ptr, uint count,
TABLE *table;
enum thr_lock_type lock_type;
if ((table=table_ptr[i])->s->tmp_table == TMP_TABLE)
if ((table=table_ptr[i])->s->tmp_table == NON_TRANSACTIONAL_TMP_TABLE)
continue;
lock_type= table->reginfo.lock_type;
if (lock_type >= TL_WRITE_ALLOW_WRITE)

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@ -6125,12 +6125,12 @@ The minimum value for this variable is 4096.",
(gptr*) &max_system_variables.tmp_table_size, 0, GET_ULL,
REQUIRED_ARG, 32*1024*1024L, 1024, MAX_MEM_TABLE_SIZE, 0, 1, 0},
{"transaction_alloc_block_size", OPT_TRANS_ALLOC_BLOCK_SIZE,
"Allocation block size for transactions to be stored in binary log",
"Allocation block size for various transaction-related structures",
(gptr*) &global_system_variables.trans_alloc_block_size,
(gptr*) &max_system_variables.trans_alloc_block_size, 0, GET_ULONG,
REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, ~0L, 0, 1024, 0},
{"transaction_prealloc_size", OPT_TRANS_PREALLOC_SIZE,
"Persistent buffer for transactions to be stored in binary log",
"Persistent buffer for various transaction-related structures",
(gptr*) &global_system_variables.trans_prealloc_size,
(gptr*) &max_system_variables.trans_prealloc_size, 0, GET_ULONG,
REQUIRED_ARG, TRANS_ALLOC_PREALLOC_SIZE, 1024, ~0L, 0, 1024, 0},

View File

@ -2950,7 +2950,7 @@ TABLE *open_temporary_table(THD *thd, const char *path, const char *db,
share= tmp_table->s;
tmp_table->reginfo.lock_type=TL_WRITE; // Simulate locked
share->tmp_table= (tmp_table->file->has_transactions() ?
TRANSACTIONAL_TMP_TABLE : TMP_TABLE);
TRANSACTIONAL_TMP_TABLE : NON_TRANSACTIONAL_TMP_TABLE);
share->table_cache_key= (char*) (tmp_table+1);
share->db= share->table_cache_key;
share->key_length= (uint) (strmov(((char*) (share->table_name=

View File

@ -613,6 +613,18 @@ void THD::cleanup_after_query()
clear_next_insert_id= 0;
next_insert_id= 0;
}
/*
Reset rand_used so that detection of calls to rand() will save random
seeds if needed by the slave.
Do not reset rand_used if inside a stored function or trigger because
only the call to these operations is logged. Thus only the calling
statement needs to detect rand() calls made by its substatements. These
substatements must not set rand_used to 0 because it would remove the
detection of rand() by the calling statement.
*/
if (!in_sub_stmt)
rand_used= 0;
/* Free Items that were created during this execution */
free_items();
/* Reset where. */

View File

@ -179,7 +179,7 @@ exit:
orig_table_list->table_name= (char*) table->s->table_name;
orig_table_list->table_name_length= strlen((char*)table->s->table_name);
table->derived_select_number= first_select->select_number;
table->s->tmp_table= TMP_TABLE;
table->s->tmp_table= NON_TRANSACTIONAL_TMP_TABLE;
#ifndef NO_EMBEDDED_ACCESS_CHECKS
if (orig_table_list->referencing_view)
table->grant= orig_table_list->grant;

View File

@ -9169,7 +9169,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
table->s->table_name= table->s->path= tmpname;
table->s->db= "";
table->s->blob_ptr_size= mi_portable_sizeof_char_ptr;
table->s->tmp_table= TMP_TABLE;
table->s->tmp_table= NON_TRANSACTIONAL_TMP_TABLE;
table->s->db_low_byte_first=1; // True for HEAP and MyISAM
table->s->table_charset= param->table_charset;
table->s->keys_for_keyread.init();

View File

@ -55,7 +55,8 @@ typedef struct st_grant_info
ulong orig_want_privilege;
} GRANT_INFO;
enum tmp_table_type {NO_TMP_TABLE=0, TMP_TABLE=1, TRANSACTIONAL_TMP_TABLE=2,
enum tmp_table_type {NO_TMP_TABLE=0,
NON_TRANSACTIONAL_TMP_TABLE=1, TRANSACTIONAL_TMP_TABLE=2,
SYSTEM_TMP_TABLE=3};
enum frm_type_enum

View File

@ -6744,7 +6744,7 @@ typedef struct my_uca_scanner_handler_st
int (*next)(my_uca_scanner *scanner);
} my_uca_scanner_handler;
static uint16 nochar[]= {0};
static uint16 nochar[]= {0,0};
#ifdef HAVE_CHARSET_ucs2
@ -6769,13 +6769,32 @@ static void my_uca_scanner_init_ucs2(my_uca_scanner *scanner,
CHARSET_INFO *cs __attribute__((unused)),
const uchar *str, uint length)
{
/* Note, no needs to initialize scanner->wbeg */
scanner->sbeg= str;
scanner->send= str + length - 2;
scanner->wbeg= nochar;
scanner->uca_length= cs->sort_order;
scanner->uca_weight= cs->sort_order_big;
scanner->contractions= cs->contractions;
if (length)
{
scanner->sbeg= str;
scanner->send= str + length - 2;
scanner->uca_length= cs->sort_order;
scanner->uca_weight= cs->sort_order_big;
scanner->contractions= cs->contractions;
return;
}
/*
Sometimes this function is called with
str=NULL and length=0, which should be
considered as an empty string.
The above initialization is unsafe for such cases,
because scanner->send is initialized to (NULL-2), which is 0xFFFFFFFE.
Then we fall into an endless loop in my_uca_scanner_next_ucs2().
Do special initialization for the case when length=0.
Initialize scanner->sbeg to an address greater than scanner->send.
Next call of my_uca_scanner_next_ucs2() will correctly return with -1.
*/
scanner->sbeg= (uchar*) &nochar[1];
scanner->send= (uchar*) &nochar[0];
}

View File

@ -2764,6 +2764,7 @@ static int my_strnncoll_utf8_cs(CHARSET_INFO *cs,
const uchar *te=t+tlen;
int save_diff = 0;
int diff;
MY_UNICASE_INFO **uni_plane= cs->caseinfo;
while ( s < se && t < te )
{
@ -2800,13 +2801,16 @@ static int my_strnncoll_utf8_cs(CHARSET_INFO *cs,
static int my_strnncollsp_utf8_cs(CHARSET_INFO *cs,
const uchar *s, uint slen,
const uchar *t, uint tlen)
const uchar *t, uint tlen,
my_bool diff_if_only_endspace_difference
__attribute__((unused)))
{
int s_res,t_res;
my_wc_t s_wc,t_wc;
const uchar *se= s+slen;
const uchar *te= t+tlen;
int save_diff = 0;
MY_UNICASE_INFO **uni_plane= cs->caseinfo;
while ( s < se && t < te )
{
@ -2875,6 +2879,7 @@ static MY_COLLATION_HANDLER my_collation_cs_handler =
my_strnncoll_utf8_cs,
my_strnncollsp_utf8_cs,
my_strnxfrm_utf8,
my_strnxfrmlen_utf8,
my_like_range_simple,
my_wildcmp_mb,
my_strcasecmp_utf8,