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Bug#6252 - Duplicate columns in keys should fail

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Added check for duplicate column in key
  Added tests and fixed tests which exploit bug
This commit is contained in:
antony@ltantony.rdg.cyberkinetica.homeunix.net 2004-11-22 18:07:04 +00:00
parent e72acc4236
commit 076f27147f
9 changed files with 151 additions and 13 deletions
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30
mysql-test/r/delete.result
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@ -16,12 +16,34 @@ SET AUTOCOMMIT=0;
DELETE from t1;
SET AUTOCOMMIT=1;
drop table t1;
create table t1 (a bigint not null, primary key (a,a,a,a,a,a,a,a,a,a));
insert into t1 values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
create table t1 (
a bigint not null,
b bigint not null default 0,
c bigint not null default 0,
d bigint not null default 0,
e bigint not null default 0,
f bigint not null default 0,
g bigint not null default 0,
h bigint not null default 0,
i bigint not null default 0,
j bigint not null default 0,
primary key (a,b,c,d,e,f,g,h,i,j));
insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
delete from t1 where a=26;
drop table t1;
create table t1 (a bigint not null, primary key (a,a,a,a,a,a,a,a,a,a));
insert into t1 values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
create table t1 (
a bigint not null,
b bigint not null default 0,
c bigint not null default 0,
d bigint not null default 0,
e bigint not null default 0,
f bigint not null default 0,
g bigint not null default 0,
h bigint not null default 0,
i bigint not null default 0,
j bigint not null default 0,
primary key (a,b,c,d,e,f,g,h,i,j));
insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
delete from t1 where a=27;
drop table t1;
CREATE TABLE `t1` (

18
mysql-test/r/innodb.result
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@ -1630,3 +1630,21 @@ show status like "binlog_cache_disk_use";
Variable_name Value
Binlog_cache_disk_use 1
drop table t1;
create table t1 (c char(10), index (c,c)) engine=innodb;
ERROR 42S21: Duplicate column name 'c'
create table t1 (c1 char(10), c2 char(10), index (c1,c2,c1)) engine=innodb;
ERROR 42S21: Duplicate column name 'c1'
create table t1 (c1 char(10), c2 char(10), index (c1,c1,c2)) engine=innodb;
ERROR 42S21: Duplicate column name 'c1'
create table t1 (c1 char(10), c2 char(10), index (c2,c1,c1)) engine=innodb;
ERROR 42S21: Duplicate column name 'c1'
create table t1 (c1 char(10), c2 char(10)) engine=innodb;
alter table t1 add key (c1,c1);
ERROR 42S21: Duplicate column name 'c1'
alter table t1 add key (c2,c1,c1);
ERROR 42S21: Duplicate column name 'c1'
alter table t1 add key (c1,c2,c1);
ERROR 42S21: Duplicate column name 'c1'
alter table t1 add key (c1,c1,c2);
ERROR 42S21: Duplicate column name 'c1'
drop table t1;

18
mysql-test/r/key.result
View File

@ -307,3 +307,21 @@ test.t1 check status OK
drop table t1;
create table t1 (c char(10), index (c(0)));
ERROR HY000: Key part 'c' length cannot be 0
create table t1 (c char(10), index (c,c));
ERROR 42S21: Duplicate column name 'c'
create table t1 (c1 char(10), c2 char(10), index (c1,c2,c1));
ERROR 42S21: Duplicate column name 'c1'
create table t1 (c1 char(10), c2 char(10), index (c1,c1,c2));
ERROR 42S21: Duplicate column name 'c1'
create table t1 (c1 char(10), c2 char(10), index (c2,c1,c1));
ERROR 42S21: Duplicate column name 'c1'
create table t1 (c1 char(10), c2 char(10));
alter table t1 add key (c1,c1);
ERROR 42S21: Duplicate column name 'c1'
alter table t1 add key (c2,c1,c1);
ERROR 42S21: Duplicate column name 'c1'
alter table t1 add key (c1,c2,c1);
ERROR 42S21: Duplicate column name 'c1'
alter table t1 add key (c1,c1,c2);
ERROR 42S21: Duplicate column name 'c1'
drop table t1;

4
mysql-test/r/type_blob.result
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@ -682,8 +682,8 @@ id txt
3 NULL
1 Chevy
drop table t1;
CREATE TABLE t1 ( i int(11) NOT NULL default '0', c text NOT NULL, PRIMARY KEY (i), KEY (c(1),c(1)));
INSERT t1 VALUES (1,''),(2,''),(3,'asdfh'),(4,'');
CREATE TABLE t1 ( i int(11) NOT NULL default '0', c text NOT NULL, d varchar(1) NOT NULL DEFAULT ' ', PRIMARY KEY (i), KEY (c(1),d));
INSERT t1 (i, c) VALUES (1,''),(2,''),(3,'asdfh'),(4,'');
select max(i) from t1 where c = '';
max(i)
4

30
mysql-test/t/delete.test
View File

@ -29,12 +29,34 @@ drop table t1;
# (This assumes a block size of 1024)
#
create table t1 (a bigint not null, primary key (a,a,a,a,a,a,a,a,a,a));
insert into t1 values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
create table t1 (
a bigint not null,
b bigint not null default 0,
c bigint not null default 0,
d bigint not null default 0,
e bigint not null default 0,
f bigint not null default 0,
g bigint not null default 0,
h bigint not null default 0,
i bigint not null default 0,
j bigint not null default 0,
primary key (a,b,c,d,e,f,g,h,i,j));
insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
delete from t1 where a=26;
drop table t1;
create table t1 (a bigint not null, primary key (a,a,a,a,a,a,a,a,a,a));
insert into t1 values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
create table t1 (
a bigint not null,
b bigint not null default 0,
c bigint not null default 0,
d bigint not null default 0,
e bigint not null default 0,
f bigint not null default 0,
g bigint not null default 0,
h bigint not null default 0,
i bigint not null default 0,
j bigint not null default 0,
primary key (a,b,c,d,e,f,g,h,i,j));
insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
delete from t1 where a=27;
drop table t1;

22
mysql-test/t/innodb.test
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@ -1158,3 +1158,25 @@ show status like "binlog_cache_use";
show status like "binlog_cache_disk_use";
drop table t1;
#
# Bug #6126: Duplicate columns in keys gives misleading error message
#
--error 1060
create table t1 (c char(10), index (c,c)) engine=innodb;
--error 1060
create table t1 (c1 char(10), c2 char(10), index (c1,c2,c1)) engine=innodb;
--error 1060
create table t1 (c1 char(10), c2 char(10), index (c1,c1,c2)) engine=innodb;
--error 1060
create table t1 (c1 char(10), c2 char(10), index (c2,c1,c1)) engine=innodb;
create table t1 (c1 char(10), c2 char(10)) engine=innodb;
--error 1060
alter table t1 add key (c1,c1);
--error 1060
alter table t1 add key (c2,c1,c1);
--error 1060
alter table t1 add key (c1,c2,c1);
--error 1060
alter table t1 add key (c1,c1,c2);
drop table t1;

23
mysql-test/t/key.test
View File

@ -297,3 +297,26 @@ drop table t1;
--error 1105
create table t1 (c char(10), index (c(0)));
#
# Bug #6126: Duplicate columns in keys should fail
# Bug #6252: (dup)
#
--error 1060
create table t1 (c char(10), index (c,c));
--error 1060
create table t1 (c1 char(10), c2 char(10), index (c1,c2,c1));
--error 1060
create table t1 (c1 char(10), c2 char(10), index (c1,c1,c2));
--error 1060
create table t1 (c1 char(10), c2 char(10), index (c2,c1,c1));
create table t1 (c1 char(10), c2 char(10));
--error 1060
alter table t1 add key (c1,c1);
--error 1060
alter table t1 add key (c2,c1,c1);
--error 1060
alter table t1 add key (c1,c2,c1);
--error 1060
alter table t1 add key (c1,c1,c2);
drop table t1;

4
mysql-test/t/type_blob.test
View File

@ -369,8 +369,8 @@ explain select * from t1 where txt='Chevy' or txt is NULL order by txt;
select * from t1 where txt='Chevy' or txt is NULL order by txt;
drop table t1;
CREATE TABLE t1 ( i int(11) NOT NULL default '0', c text NOT NULL, PRIMARY KEY (i), KEY (c(1),c(1)));
INSERT t1 VALUES (1,''),(2,''),(3,'asdfh'),(4,'');
CREATE TABLE t1 ( i int(11) NOT NULL default '0', c text NOT NULL, d varchar(1) NOT NULL DEFAULT ' ', PRIMARY KEY (i), KEY (c(1),d));
INSERT t1 (i, c) VALUES (1,''),(2,''),(3,'asdfh'),(4,'');
select max(i) from t1 where c = '';
drop table t1;

15
sql/sql_table.cc
View File

@ -835,7 +835,7 @@ int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
#endif
}
List_iterator<key_part_spec> cols(key->columns);
List_iterator<key_part_spec> cols(key->columns), cols2(key->columns);
CHARSET_INFO *ft_key_charset=0; // for FULLTEXT
for (uint column_nr=0 ; (column=cols++) ; column_nr++)
{
@ -853,6 +853,19 @@ int mysql_prepare_table(THD *thd, HA_CREATE_INFO *create_info,
column->field_name);
DBUG_RETURN(-1);
}
for (uint dup_nr= 0; dup_nr < column_nr; dup_nr++)
{
key_part_spec *dup_column= cols2++;
if (!my_strcasecmp(system_charset_info,
column->field_name, dup_column->field_name))
{
my_printf_error(ER_DUP_FIELDNAME,
ER(ER_DUP_FIELDNAME),MYF(0),
column->field_name);
DBUG_RETURN(-1);
}
}
cols2.rewind();
/* for fulltext keys keyseg length is 1 for blobs (it's ignored in
ft code anyway, and 0 (set to column width later) for char's.
it has to be correct col width for char's, as char data are not