Bug #47125 auto_increment start value is ignored if an index is created and engine=innodb

• Submitted: 4 Sep 2009 8:15
• Modified: 19 Jun 2010 17:52
• Reporter: Bernt Marius Johnsen
• Status: Closed
• Category: MySQL Server: InnoDB storage engine
• Severity: S2 (Serious)
• Version: 5.1.37, 5.1.39-bzr, 5.0.85
• OS: Any
• Assigned to: Satya B
• CPU Architecture: Any

[4 Sep 2009 8:15] Bernt Marius Johnsen

Description:
auto_increment start value is ignored if an index is created with CREATE INDEX and engine=innodb

The following SQL: 

drop table if exists t1;
create table t1 (
   pk integer auto_increment,
   i integer,
   primary key (pk)
)  auto_increment=10 engine=innodb;
create index ix on t1(i);

insert into t1 (i) values (0);
select * from t1;

Gives the result
+----+------+
| pk | i    |
+----+------+
|  1 |    0 |
+----+------+

drop table if exists t2;
create table t2 (
   pk integer auto_increment,
   i integer,
   primary key (pk),
   key(i)
)  auto_increment=10 engine=innodb;

insert into t2 (i) values (0);
select * from t2;

Gives the correct result:

+----+------+
| pk | i    |
+----+------+
| 10 |    0 |
+----+------+

While the following SQL:

How to repeat:
Run the following SQL:

drop table if exists t1;
create table t1 (
   pk integer auto_increment,
   i integer,
   primary key (pk)
)  auto_increment=10 engine=innodb;
create index ix on t1(i);

insert into t1 (i) values (0);
select * from t1;

[4 Sep 2009 8:20] Valeriy Kravchuk

Verified just as described.

[4 Sep 2009 8:24] Valeriy Kravchuk

Same with recent 5.1.39 from bzr on Linux:

openxs@suse:/home2/openxs/dbs/5.1> bin/mysql -uroot test
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.1.39-debug Source distribution

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> drop table if exists t1;
Query OK, 0 rows affected (0.02 sec)

mysql> create table t1 (
    ->    pk integer auto_increment,
    ->    i integer,
    ->    primary key (pk)
    -> )  auto_increment=10 engine=innodb;
Query OK, 0 rows affected (0.11 sec)

mysql> create index ix on t1(i);
Query OK, 0 rows affected (0.16 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> insert into t1 (i) values (0);
Query OK, 1 row affected (0.00 sec)

mysql> select * from t1;
+----+------+
| pk | i    |
+----+------+
|  1 |    0 |
+----+------+
1 row in set (0.01 sec)

mysql>
mysql> drop table if exists t2;
Query OK, 0 rows affected (0.00 sec)

mysql> create table t2 (
    ->    pk integer auto_increment,
    ->    i integer,
    ->    primary key (pk),
    ->    key(i)
    -> )  auto_increment=10 engine=innodb;
Query OK, 0 rows affected (0.02 sec)

mysql>
mysql> insert into t2 (i) values (0);
Query OK, 1 row affected (0.00 sec)

mysql> select * from t2;
+----+------+
| pk | i    |
+----+------+
| 10 |    0 |
+----+------+
1 row in set (0.00 sec)

[4 Sep 2009 8:27] Valeriy Kravchuk

MyISAM is not affected:

mysql> create table t1 (
    ->    pk integer auto_increment,
    ->    i integer,
    ->    primary key (pk)
    -> )  auto_increment=10 engine=MyISAM;
Query OK, 0 rows affected (0.08 sec)

mysql> create index ix on t1(i);
Query OK, 0 rows affected (0.13 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql> insert into t1 (i) values (0);
Query OK, 1 row affected (0.06 sec)

mysql> select * from t1;
+----+------+
| pk | i    |
+----+------+
| 10 |    0 |
+----+------+
1 row in set (0.00 sec)

[17 Sep 2009 2:00] Sunny Bains

Works with the plugin:

mysql> create table t1 (pk integer auto_increment, i integer, primary key (pk) ) auto_increment=10 engine=innodb;
Query OK, 0 rows affected (0.02 sec)

mysql> create index ix on t1(i);
Query OK, 0 rows affected (0.03 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql> insert into t1 (i) values (0);
Query OK, 1 row affected (10.48 sec)

mysql> select * from t1;
+----+------+
| pk | i    |
+----+------+
| 10 |    0 | 
+----+------+
1 row in set (0.00 sec)

[21 Sep 2009 23:48] Sunny Bains

CREATE INDEX I ON T(C); creates a new table, copies the data, drops the old table and then renames the new table to the old table name. We need to check for SQLCOM_CREATE_INDEX and copy the old autoinc value across to the new table too.

[4 Nov 2009 9:24] Bugs System

Pushed into 5.1.41 (revid:[e-mail]-20091104092152-qz96bzlf2o1japwc) (version source revid:[e-mail]-20091103162305-08l4gkeuif2ozsoj) (merge vers: 5.1.41) (pib:13)

[11 Nov 2009 6:49] Bugs System

Pushed into 6.0.14-alpha (revid:[e-mail]-20091110093407-rw5g8dys2baqkt67) (version source revid:[e-mail]-20091109080109-7dxapd5y5pxlu08w) (merge vers: 6.0.14-alpha) (pib:13)

[11 Nov 2009 6:56] Bugs System

Pushed into 5.5.0-beta (revid:[e-mail]-20091109115615-nuohp02h8mdrz8m2) (version source revid:[e-mail]-20091105122958-jyqjx9xus8v4e0yd) (merge vers: 5.5.0-beta) (pib:13)

[22 Nov 2009 0:31] Paul DuBois

Noted in 5.1.41, 5.5.0, 6.0.14 changelogs.

If an InnoDB table was created with the AUTO_INCREMENT table option
to specify an initial auto-increment value, and an index was added in
a separate operation later, the auto-increment value was lost
(subsequent inserts began at 1 rather than the specified value).

[18 Dec 2009 10:26] Bugs System

Pushed into 5.1.41-ndb-7.1.0 (revid:[e-mail]-20091218102229-64tk47xonu3dv6r6) (version source revid:[e-mail]-20091218095730-26gwjidfsdw45dto) (merge vers: 5.1.41-ndb-7.1.0) (pib:15)

[18 Dec 2009 10:42] Bugs System

Pushed into 5.1.41-ndb-6.2.19 (revid:[e-mail]-20091218100224-vtzr0fahhsuhjsmt) (version source revid:[e-mail]-20091217101452-qwzyaig50w74xmye) (merge vers: 5.1.41-ndb-6.2.19) (pib:15)

[18 Dec 2009 10:57] Bugs System

Pushed into 5.1.41-ndb-6.3.31 (revid:[e-mail]-20091218100616-75d9tek96o6ob6k0) (version source revid:[e-mail]-20091217154335-290no45qdins5bwo) (merge vers: 5.1.41-ndb-6.3.31) (pib:15)

[18 Dec 2009 11:12] Bugs System

Pushed into 5.1.41-ndb-7.0.11 (revid:[e-mail]-20091218101303-ga32mrnr15jsa606) (version source revid:[e-mail]-20091218064304-ezreonykd9f4kelk) (merge vers: 5.1.41-ndb-7.0.11) (pib:15)

[5 May 2010 15:02] Bugs System

Pushed into 5.1.47 (revid:[e-mail]-20100505145753-ivlt4hclbrjy8eye) (version source revid:[e-mail]-20100331130613-8ja7n0vh36a80457) (merge vers: 5.1.46) (pib:16)

[6 May 2010 17:39] Paul DuBois

Push resulted from incorporation of InnoDB tree. No changes pertinent to this bug.
Re-closing.

[28 May 2010 5:45] Bugs System

Pushed into mysql-next-mr (revid:[e-mail]-20100524190136-egaq7e8zgkwb9aqi) (version source revid:[e-mail]-20100331130613-8ja7n0vh36a80457) (pib:16)

[28 May 2010 6:15] Bugs System

Pushed into 6.0.14-alpha (revid:[e-mail]-20100524190941-nuudpx60if25wsvx) (version source revid:[e-mail]-20100331130613-8ja7n0vh36a80457) (merge vers: 5.1.46) (pib:16)

[28 May 2010 6:43] Bugs System

Pushed into 5.5.5-m3 (revid:[e-mail]-20100524185725-c8k5q7v60i5nix3t) (version source revid:[e-mail]-20100331130613-8ja7n0vh36a80457) (merge vers: 5.1.46) (pib:16)

[29 May 2010 22:41] Paul DuBois

Push resulted from incorporation of InnoDB tree. No changes pertinent to this bug.
Re-closing.

[15 Jun 2010 8:08] Bugs System

Pushed into 5.5.5-m3 (revid:[e-mail]-20100615080459-smuswd9ooeywcxuc) (version source revid:[e-mail]-20100415070122-1nxji8ym4mao13ao) (merge vers: 5.1.47) (pib:16)

[15 Jun 2010 8:23] Bugs System

Pushed into mysql-next-mr (revid:[e-mail]-20100615080558-cw01bzdqr1bdmmec) (version source revid:[e-mail]-20100415070122-1nxji8ym4mao13ao) (pib:16)

[17 Jun 2010 11:45] Bugs System

Pushed into 5.1.47-ndb-7.0.16 (revid:[e-mail]-20100617114014-bva0dy24yyd67697) (version source revid:[e-mail]-20100331130613-8ja7n0vh36a80457) (merge vers: 5.1.46) (pib:16)

[17 Jun 2010 12:23] Bugs System

Pushed into 5.1.47-ndb-6.2.19 (revid:[e-mail]-20100617115448-idrbic6gbki37h1c) (version source revid:[e-mail]-20100331130613-8ja7n0vh36a80457) (merge vers: 5.1.46) (pib:16)

[17 Jun 2010 13:10] Bugs System

Pushed into 5.1.47-ndb-6.3.35 (revid:[e-mail]-20100617114611-61aqbb52j752y116) (version source revid:[e-mail]-20100331130613-8ja7n0vh36a80457) (merge vers: 5.1.46) (pib:16)