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-rw-r--r--myisam/mi_key.c8
-rw-r--r--mysql-test/r/ctype_utf8.result20
-rw-r--r--mysql-test/t/ctype_utf8.test25
3 files changed, 49 insertions, 4 deletions
diff --git a/myisam/mi_key.c b/myisam/mi_key.c
index 36fe01a27f2..8f5f0e829ef 100644
--- a/myisam/mi_key.c
+++ b/myisam/mi_key.c
@@ -42,7 +42,7 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
byte *pos,*end;
uchar *start;
reg1 HA_KEYSEG *keyseg;
- my_bool is_unique=info->s->keyinfo[keynr].flag & HA_NOSAME;
+ my_bool is_ft= info->s->keyinfo[keynr].flag & HA_FULLTEXT;
DBUG_ENTER("_mi_make_key");
if(info->s->keyinfo[keynr].flag & HA_SPATIAL)
@@ -75,7 +75,7 @@ uint _mi_make_key(register MI_INFO *info, uint keynr, uchar *key,
*key++=1; /* Not NULL */
}
- char_length= (is_unique && cs && cs->mbmaxlen > 1) ? length/cs->mbmaxlen : length;
+ char_length= (!is_ft && cs && cs->mbmaxlen > 1) ? length/cs->mbmaxlen : length;
pos= (byte*) record+keyseg->start;
if (keyseg->flag & HA_SPACE_PACK)
@@ -193,7 +193,7 @@ uint _mi_pack_key(register MI_INFO *info, uint keynr, uchar *key, uchar *old,
{
uchar *start_key=key;
HA_KEYSEG *keyseg;
- my_bool is_unique=info->s->keyinfo[keynr].flag & HA_NOSAME;
+ my_bool is_ft= info->s->keyinfo[keynr].flag & HA_FULLTEXT;
DBUG_ENTER("_mi_pack_key");
for (keyseg=info->s->keyinfo[keynr].seg ;
@@ -217,7 +217,7 @@ 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;
+ char_length= (!is_ft && cs && cs->mbmaxlen > 1) ? length/cs->mbmaxlen : length;
pos=old;
if (keyseg->flag & HA_SPACE_PACK)
{
diff --git a/mysql-test/r/ctype_utf8.result b/mysql-test/r/ctype_utf8.result
index 6c6e5114cf8..6a0bd21c551 100644
--- a/mysql-test/r/ctype_utf8.result
+++ b/mysql-test/r/ctype_utf8.result
@@ -540,3 +540,23 @@ select c as c_a from t1 where c='б';
c_a
б
drop table t1;
+create table t1 (
+str varchar(255) character set utf8 not null,
+key str (str(2))
+) engine=myisam;
+INSERT INTO t1 VALUES ('str');
+INSERT INTO t1 VALUES ('str2');
+select * from t1 where str='str';
+str
+str
+drop table t1;
+create table t1 (
+str varchar(255) character set utf8 not null,
+key str using btree (str(2))
+) engine=heap;
+INSERT INTO t1 VALUES ('str');
+INSERT INTO t1 VALUES ('str2');
+select * from t1 where str='str';
+str
+str
+drop table t1;
diff --git a/mysql-test/t/ctype_utf8.test b/mysql-test/t/ctype_utf8.test
index 21880732e47..17b89ba1050 100644
--- a/mysql-test/t/ctype_utf8.test
+++ b/mysql-test/t/ctype_utf8.test
@@ -392,3 +392,28 @@ 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#4594: column index make = failed for gbk, but like works
+# Check MYISAM
+#
+create table t1 (
+ str varchar(255) character set utf8 not null,
+ key str (str(2))
+) engine=myisam;
+INSERT INTO t1 VALUES ('str');
+INSERT INTO t1 VALUES ('str2');
+select * from t1 where str='str';
+drop table t1;
+
+# the same for HEAP+BTREE
+#
+
+create table t1 (
+ str varchar(255) character set utf8 not null,
+ key str using btree (str(2))
+) engine=heap;
+INSERT INTO t1 VALUES ('str');
+INSERT INTO t1 VALUES ('str2');
+select * from t1 where str='str';
+drop table t1;