mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-18 13:02:28 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Bug 4531: unique key prefix interacts poorly with utf8

Browse source 
Check HEAP+HASH, binary collation
This commit is contained in:
bar@mysql.com 2004-08-19 16:07:18 +05:00
parent a7510c70fc
commit d81136e3e1
3 changed files with 56 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

36
mysql-test/r/ctype_utf8.result
View file

@ -470,6 +470,42 @@ 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 'бÐ' for key 1
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'бÐ' 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;
show create table t1;

40
mysql-test/t/ctype_utf8.test
View file

@ -349,27 +349,25 @@ drop table t1;
# Bug 4531: unique key prefix interacts poorly with utf8
# Check HEAP+HASH, binary collation
#
# This doesn't work correctly yet.
#
#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;
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

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;