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myisam/mi_key.c:
  SCCS merged
This commit is contained in:
unknown 2004-08-13 18:31:30 +02:00
commit a5a4ed90f5
7 changed files with 122 additions and 71 deletions
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4
include/m_ctype.h
View file

@ -391,8 +391,10 @@ extern my_bool my_parse_charset_xml(const char *bug, uint len,
#define my_strnncoll(s, a, b, c, d) ((s)->coll->strnncoll((s), (a), (b), (c), (d), 0))
#define my_like_range(s, a, b, c, d, e, f, g, h, i, j) \
((s)->coll->like_range((s), (a), (b), (c), (d), (e), (f), (g), (h), (i), (j)))
#define my_wildcmp(cs,s,se,w,we,e,o,m) ((cs)->coll->wildcmp((cs),(s),(se),(w),(we),(e),(o),(m)))
#define my_wildcmp(cs,s,se,w,we,e,o,m) ((cs)->coll->wildcmp((cs),(s),(se),(w),(we),(e),(o),(m)))
#define my_strcasecmp(s, a, b) ((s)->coll->strcasecmp((s), (a), (b)))
#define my_charpos(cs, b, e, num) (cs)->cset->charpos((cs), (const char*) (b), (const char *)(e), (num))
#define use_mb(s) ((s)->cset->ismbchar != NULL)
#define my_ismbchar(s, a, b) ((s)->cset->ismbchar((s), (a), (b)))

118
myisam/mi_key.c
View file

@ -25,6 +25,10 @@
#define CHECK_KEYS
#define FIX_LENGTH if (length > char_length) \
char_length= my_charpos(cs, pos, pos+length, char_length); \
set_if_smaller(char_length,length); \
static int _mi_put_key_in_record(MI_INFO *info,uint keynr,byte *record);
/*
@ -32,20 +36,18 @@ static int _mi_put_key_in_record(MI_INFO *info,uint keynr,byte *record);
** Ret: Length of key
*/
#define my_charpos(cs, b, e, num)\
(cs)->cset->charpos((cs), (const char*) (b), (const char *)(e), (num))
uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
const byte *record, my_off_t filepos)
{
byte *pos,*end;
uchar *start;
reg1 HA_KEYSEG *keyseg;
my_bool is_unique=info->s->keyinfo[keynr].flag & HA_NOSAME;
DBUG_ENTER("_mi_make_key");
if(info->s->keyinfo[keynr].flag & HA_SPATIAL)
{
/*
/*
TODO: nulls processing
*/
#ifdef HAVE_SPATIAL
@ -61,7 +63,7 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
enum ha_base_keytype type=(enum ha_base_keytype) keyseg->type;
uint length=keyseg->length;
uint char_length;
CHARSET_INFO *cs;
CHARSET_INFO *cs=keyseg->charset;
if (keyseg->null_bit)
{
@ -73,15 +75,8 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
*key++=1; /* Not NULL */
}
char_length= (cs= keyseg->charset) && (cs->mbmaxlen > 1) ?
length / cs->mbmaxlen : 0;
if (info->s->keyinfo[keynr].flag & HA_FULLTEXT)
{
/* Ask Serg to make a better fix */
char_length= 0;
}
char_length= (is_unique && cs && cs->mbmaxlen > 1) ? length/cs->mbmaxlen : length;
pos= (byte*) record+keyseg->start;
if (keyseg->flag & HA_SPACE_PACK)
{
@ -97,14 +92,10 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
pos++;
}
length=(uint) (end-pos);
if (char_length && length > char_length)
{
char_length= my_charpos(cs, pos, pos+length, char_length);
set_if_smaller(length, char_length);
}
store_key_length_inc(key,length);
memcpy((byte*) key,(byte*) pos,(size_t) length);
key+=length;
FIX_LENGTH;
store_key_length_inc(key,char_length);
memcpy((byte*) key,(byte*) pos,(size_t) char_length);
key+=char_length;
continue;
}
if (keyseg->flag & HA_VAR_LENGTH)
@ -112,9 +103,10 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
uint tmp_length=uint2korr(pos);
pos+=2; /* Skip VARCHAR length */
set_if_smaller(length,tmp_length);
store_key_length_inc(key,length);
memcpy((byte*) key, pos, length);
key+= length;
FIX_LENGTH;
store_key_length_inc(key,char_length);
memcpy((byte*) key,(byte*) pos,(size_t) char_length);
key+= char_length;
continue;
}
else if (keyseg->flag & HA_BLOB_PART)
@ -122,16 +114,10 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
uint tmp_length=_mi_calc_blob_length(keyseg->bit_start,pos);
memcpy_fixed((byte*) &pos,pos+keyseg->bit_start,sizeof(char*));
set_if_smaller(length,tmp_length);
#if NOT_YET_BLOB_PART
if (char_length && length > char_length)
{
char_length= my_charpos(cs, pos, pos+length, char_length);
set_if_smaller(length, char_length);
}
#endif
store_key_length_inc(key,length);
memcpy((byte*) key, pos, length);
key+= length;
FIX_LENGTH;
store_key_length_inc(key,char_length);
memcpy((byte*) key,(byte*) pos,(size_t) char_length);
key+= char_length;
continue;
}
else if (keyseg->flag & HA_SWAP_KEY)
@ -144,7 +130,7 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
if (isnan(nr))
{
/* Replace NAN with zero */
bzero(key,length);
bzero(key,length);
key+=length;
continue;
}
@ -155,7 +141,7 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
float8get(nr,pos);
if (isnan(nr))
{
bzero(key,length);
bzero(key,length);
key+=length;
continue;
}
@ -168,19 +154,10 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
}
continue;
}
if (char_length && length > char_length)
{
char_length= my_charpos(cs, pos, pos+length, char_length);
if (char_length < length)
{
uint diff= length - char_length;
memcpy((byte*) key, pos, char_length);
cs->cset->fill(cs, key + char_length, diff, ' ');
key+= length;
continue;
}
}
memcpy((byte*) key, pos, length);
FIX_LENGTH;
memcpy((byte*) key, pos, char_length);
if (length > char_length)
bfill(key+char_length, length-char_length, ' ');
key+= length;
}
_mi_dpointer(info,key,filepos);
@ -208,25 +185,27 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
RETURN
length of packed key
last_use_keyseg Store pointer to the keyseg after the last used one
last_use_keyseg Store pointer to the keyseg after the last used one
*/
uint _mi_pack_key(register MI_INFO *info, uint keynr, uchar *key, uchar *old,
uint k_length, HA_KEYSEG **last_used_keyseg)
{
uint length;
uchar *pos,*end,*start_key=key;
reg1 HA_KEYSEG *keyseg;
enum ha_base_keytype type;
uchar *start_key=key;
HA_KEYSEG *keyseg;
my_bool is_unique=info->s->keyinfo[keynr].flag & HA_NOSAME;
DBUG_ENTER("_mi_pack_key");
start_key=key;
for (keyseg=info->s->keyinfo[keynr].seg ;
keyseg->type && (int) k_length > 0;
old+=keyseg->length, keyseg++)
{
length=min((uint) keyseg->length,(uint) k_length);
type=(enum ha_base_keytype) keyseg->type;
enum ha_base_keytype type=(enum ha_base_keytype) keyseg->type;
uint length=min((uint) keyseg->length,(uint) k_length);
uint char_length;
uchar *pos;
CHARSET_INFO *cs=keyseg->charset;
if (keyseg->null_bit)
{
k_length--;
@ -236,10 +215,11 @@ uint _mi_pack_key(register MI_INFO *info, uint keynr, uchar *key, uchar *old,
continue; /* Found NULL */
}
}
char_length= (is_unique && cs && cs->mbmaxlen > 1) ? length/cs->mbmaxlen : length;
pos=old;
if (keyseg->flag & HA_SPACE_PACK)
{
end=pos+length;
uchar *end=pos+length;
if (type != HA_KEYTYPE_NUM)
{
while (end > pos && end[-1] == ' ')
@ -252,9 +232,10 @@ uint _mi_pack_key(register MI_INFO *info, uint keynr, uchar *key, uchar *old,
}
k_length-=length;
length=(uint) (end-pos);
store_key_length_inc(key,length);
memcpy((byte*) key,pos,(size_t) length);
key+= length;
FIX_LENGTH;
store_key_length_inc(key,char_length);
memcpy((byte*) key,pos,(size_t) char_length);
key+= char_length;
continue;
}
else if (keyseg->flag & (HA_VAR_LENGTH | HA_BLOB_PART))
@ -262,11 +243,13 @@ uint _mi_pack_key(register MI_INFO *info, uint keynr, uchar *key, uchar *old,
/* Length of key-part used with mi_rkey() always 2 */
uint tmp_length=uint2korr(pos);
k_length-= 2+length;
pos+=2;
set_if_smaller(length,tmp_length); /* Safety */
store_key_length_inc(key,length);
FIX_LENGTH;
store_key_length_inc(key,char_length);
old+=2; /* Skip length */
memcpy((byte*) key, pos+2,(size_t) length);
key+= length;
memcpy((byte*) key, pos,(size_t) char_length);
key+= char_length;
continue;
}
else if (keyseg->flag & HA_SWAP_KEY)
@ -279,7 +262,10 @@ uint _mi_pack_key(register MI_INFO *info, uint keynr, uchar *key, uchar *old,
}
continue;
}
memcpy((byte*) key,pos,(size_t) length);
FIX_LENGTH;
memcpy((byte*) key, pos, char_length);
if (length > char_length)
bfill(key+char_length, length-char_length, ' ');
key+= length;
k_length-=length;
}

4
mysql-test/r/binary.result
View file

@ -62,6 +62,10 @@ concat("-",a,"-",b,"-")
select concat("-",a,"-",b,"-") from t1 ignore index (b) where b="hello ";
concat("-",a,"-",b,"-")
alter table t1 modify b tinytext not null, drop key b, add key (b(100));
select concat("-",a,"-",b,"-") from t1;
concat("-",a,"-",b,"-")
-hello-hello-
-hello2-hello2-
select concat("-",a,"-",b,"-") from t1 where b="hello ";
concat("-",a,"-",b,"-")
-hello-hello-

38
mysql-test/r/key.result
View file

@ -76,13 +76,12 @@ CCident varchar(50) DEFAULT '' NOT NULL,
PRIMARY KEY (name,author,category)
);
INSERT INTO t1 VALUES
('patnom','patauteur',0,'p.favre@cryo-networks.fr',NULL,NULL,'#p2sndnq6ae5g1u6t','essai\nsalut','scol://195.242.78.119:patauteur.patnom',NULL,NULL,NULL,950036174,-882087474,NULL,3,0,3,'1','Pub/patnom/futur_divers.scs',NULL,'pat','CC1');
('patnom','patauteur',0,'p.favre@cryo-networks.fr',NULL,NULL,'#p2sndnq6ae5g1u6t','essai salut','scol://195.242.78.119:patauteur.patnom',NULL,NULL,NULL,950036174,-882087474,NULL,3,0,3,'1','Pub/patnom/futur_divers.scs',NULL,'pat','CC1');
INSERT INTO t1 VALUES
('LeNomDeMonSite','Marc',0,'m.barilley@cryo-networks.fr',NULL,NULL,NULL,NULL,'scol://195.242.78.119:Marc.LeNomDeMonSite',NULL,NULL,NULL,950560434,-881563214,NULL,3,0,3,'1','Pub/LeNomDeMonSite/domus_hibere.scs',NULL,'Marq','CC1');
select * from t1 where name='patnom' and author='patauteur' and category=0;
name author category email password proxy bitmap msg urlscol urlhttp timeout nbcnx creation livinguntil lang type subcat subtype reg scs capacity userISP CCident
patnom patauteur 0 p.favre@cryo-networks.fr NULL NULL #p2sndnq6ae5g1u6t essai
salut scol://195.242.78.119:patauteur.patnom NULL NULL NULL 950036174 -882087474 NULL 3 0 3 1 Pub/patnom/futur_divers.scs NULL pat CC1
patnom patauteur 0 p.favre@cryo-networks.fr NULL NULL #p2sndnq6ae5g1u6t essai salut scol://195.242.78.119:patauteur.patnom NULL NULL NULL 950036174 -882087474 NULL 3 0 3 1 Pub/patnom/futur_divers.scs NULL pat CC1
drop table t1;
create table t1
(
@ -235,3 +234,36 @@ SELECT numeropost FROM t1 WHERE numreponse='1';
numeropost
1
drop table t1;
create table t1 (c varchar(30) character set utf8, t text character set utf8, unique (c(2)), unique (t(3))) engine=myisam;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c` varchar(30) character set utf8 default NULL,
`t` text character set utf8,
UNIQUE KEY `c` (`c`(2)),
UNIQUE KEY `t` (`t`(3))
) ENGINE=MyISAM DEFAULT CHARSET=latin1
insert t1 values ('cccc', 'tttt'),
(0xD0B1212223D0B1D0B1D0B1D0B1D0B1, 0xD0B1D0B1212223D0B1D0B1D0B1D0B1),
(0xD0B1222123D0B1D0B1D0B1D0B1D0B1, 0xD0B1D0B1222123D0B1D0B1D0B1D0B1);
insert t1 (c) values ('cc22');
ERROR 23000: Duplicate entry 'cc22' for key 1
insert t1 (t) values ('ttt22');
ERROR 23000: Duplicate entry 'ttt22' for key 2
insert t1 (c) values (0xD0B1212322D0B1D0B1D0B1D0B1D0B1);
ERROR 23000: Duplicate entry 'б!#"Ð' for key 1
insert t1 (t) values (0xD0B1D0B1212322D0B1D0B1D0B1D0B1);
ERROR 23000: Duplicate entry 'бб!#"б' for key 2
select c from t1 where c='cccc';
c
cccc
select t from t1 where t='tttt';
t
tttt
select c from t1 where c=0xD0B1212223D0B1D0B1D0B1D0B1D0B1;
c
?!"#?????
select t from t1 where t=0xD0B1D0B1212223D0B1D0B1D0B1D0B1;
t
??!"#????
drop table t1;

1
mysql-test/t/binary.test
View file

@ -38,6 +38,7 @@ select concat("-",a,"-",b,"-") from t1 where b="hello ";
select concat("-",a,"-",b,"-") from t1 ignore index (b) where b="hello ";
# blob test
alter table t1 modify b tinytext not null, drop key b, add key (b(100));
select concat("-",a,"-",b,"-") from t1;
select concat("-",a,"-",b,"-") from t1 where b="hello ";
select concat("-",a,"-",b,"-") from t1 ignore index (b) where b="hello ";
drop table t1;

2
mysql-test/t/func_gconcat.test
View file

@ -215,10 +215,12 @@ DROP TABLE t1;
# check null values #1
#
--disable_warnings
CREATE TABLE t1 (a_id tinyint(4) NOT NULL default '0', PRIMARY KEY (a_id)) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (1),(2),(3);
CREATE TABLE t2 (b_id tinyint(4) NOT NULL default '0',b_a tinyint(4) NOT NULL default '0', PRIMARY KEY (b_id), KEY (b_a),
CONSTRAINT fk_b_a FOREIGN KEY (b_a) REFERENCES t1 (a_id) ON DELETE CASCADE ON UPDATE NO ACTION) ENGINE=InnoDB DEFAULT CHARSET=latin1;
--enable_warnings
INSERT INTO t2 VALUES (1,1),(2,1),(3,1),(4,2),(5,2);
SELECT * FROM (SELECT t1.*,GROUP_CONCAT(t2.b_id SEPARATOR ',') as b_list FROM (t1 LEFT JOIN (t2) on t1.a_id = t2.b_a) GROUP BY t1.a_id ) AS xyz;
DROP TABLE t2;

26
mysql-test/t/key.test
View file

@ -97,7 +97,7 @@ CREATE TABLE t1 (
PRIMARY KEY (name,author,category)
);
INSERT INTO t1 VALUES
('patnom','patauteur',0,'p.favre@cryo-networks.fr',NULL,NULL,'#p2sndnq6ae5g1u6t','essai\nsalut','scol://195.242.78.119:patauteur.patnom',NULL,NULL,NULL,950036174,-882087474,NULL,3,0,3,'1','Pub/patnom/futur_divers.scs',NULL,'pat','CC1');
('patnom','patauteur',0,'p.favre@cryo-networks.fr',NULL,NULL,'#p2sndnq6ae5g1u6t','essai salut','scol://195.242.78.119:patauteur.patnom',NULL,NULL,NULL,950036174,-882087474,NULL,3,0,3,'1','Pub/patnom/futur_divers.scs',NULL,'pat','CC1');
INSERT INTO t1 VALUES
('LeNomDeMonSite','Marc',0,'m.barilley@cryo-networks.fr',NULL,NULL,NULL,NULL,'scol://195.242.78.119:Marc.LeNomDeMonSite',NULL,NULL,NULL,950560434,-881563214,NULL,3,0,3,'1','Pub/LeNomDeMonSite/domus_hibere.scs',NULL,'Marq','CC1');
select * from t1 where name='patnom' and author='patauteur' and category=0;
@ -228,3 +228,27 @@ EXPLAIN SELECT numeropost FROM t1 WHERE numreponse='1';
FLUSH TABLES;
SELECT numeropost FROM t1 WHERE numreponse='1';
drop table t1;
#
# UNIQUE prefix keys and multi-byte charsets
#
create table t1 (c varchar(30) character set utf8, t text character set utf8, unique (c(2)), unique (t(3))) engine=myisam;
show create table t1;
insert t1 values ('cccc', 'tttt'),
(0xD0B1212223D0B1D0B1D0B1D0B1D0B1, 0xD0B1D0B1212223D0B1D0B1D0B1D0B1),
(0xD0B1222123D0B1D0B1D0B1D0B1D0B1, 0xD0B1D0B1222123D0B1D0B1D0B1D0B1);
--error 1062
insert t1 (c) values ('cc22');
--error 1062
insert t1 (t) values ('ttt22');
--error 1062
insert t1 (c) values (0xD0B1212322D0B1D0B1D0B1D0B1D0B1);
--error 1062
insert t1 (t) values (0xD0B1D0B1212322D0B1D0B1D0B1D0B1);
select c from t1 where c='cccc';
select t from t1 where t='tttt';
select c from t1 where c=0xD0B1212223D0B1D0B1D0B1D0B1D0B1;
select t from t1 where t=0xD0B1D0B1212223D0B1D0B1D0B1D0B1;
drop table t1;