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Merge abarkov@bk-internal.mysql.com:/home/bk/mysql-5.0

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into  mysql.com:/usr/home/bar/mysql-5.0.b12891
This commit is contained in:
bar@mysql.com
2005-09-12 14:09:44 +05:00
parent 357132b0b8 76910cd190
commit 2f13c5c12c
3 changed files with 29 additions and 4 deletions
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10
heap/hp_hash.c
View File

@@ -551,11 +551,13 @@ int hp_rec_key_cmp(HP_KEYDEF *keydef, const byte *rec1, const byte *rec2,
} }
if (cs->mbmaxlen > 1) if (cs->mbmaxlen > 1)
{ {
uint safe_length1= char_length1;
uint safe_length2= char_length2;
uint char_length= seg->length / cs->mbmaxlen; uint char_length= seg->length / cs->mbmaxlen;
char_length1= my_charpos(cs, pos1, pos1 + char_length1, char_length1); char_length1= my_charpos(cs, pos1, pos1 + char_length1, char_length);
set_if_smaller(char_length1, seg->length); set_if_smaller(char_length1, safe_length1);
char_length2= my_charpos(cs, pos2, pos2 + char_length2, char_length2); char_length2= my_charpos(cs, pos2, pos2 + char_length2, char_length);
set_if_smaller(char_length2, seg->length); set_if_smaller(char_length2, safe_length2);
} }
if (cs->coll->strnncollsp(seg->charset, if (cs->coll->strnncollsp(seg->charset,

12
mysql-test/r/ctype_utf8.result
View File

@@ -1027,3 +1027,15 @@ aa
xxx xxx
yyy yyy
DROP TABLE t1; DROP TABLE t1;
set names utf8;
create table t1 (a char(1)) default character set utf8;
create table t2 (a char(1)) default character set utf8;
insert into t1 values('a'),('a'),(0xE38182),(0xE38182);
insert into t1 values('i'),('i'),(0xE38184),(0xE38184);
select * from t1 union distinct select * from t2;
a
a
あ
i
い
drop table t1,t2;

11
mysql-test/t/ctype_utf8.test
View File

@@ -863,3 +863,14 @@ SELECT DISTINCT id FROM t1;
SELECT DISTINCT id FROM t1 ORDER BY id; SELECT DISTINCT id FROM t1 ORDER BY id;
DROP TABLE t1; DROP TABLE t1;
#
# Bug#12891: UNION doesn't return DISTINCT result for multi-byte characters
#
set names utf8;
create table t1 (a char(1)) default character set utf8;
create table t2 (a char(1)) default character set utf8;
insert into t1 values('a'),('a'),(0xE38182),(0xE38182);
insert into t1 values('i'),('i'),(0xE38184),(0xE38184);
select * from t1 union distinct select * from t2;
drop table t1,t2;