On Tue, 2 Mar 2004, [UTF-8] PauloviÄ Michal wrote:
> how you solve the problem with multilevel autoicrement?
>
> In MySQL you create table with col1, col2. Col 2 is AUTOICREMENT and you
> have to create UNIQUE INDEX (Col1, Col2). If you insert to this table
> for col1 volume 1, col2 automaticaly increase by one.
>
> Example:
> Insert into table values (1);
> Insert into table values (1);
> Insert into table values (2);
> Insert into table values (1);
> Insert into table values (2);
I did this in MySQL and got this:
create table test (id1 int, id2 int auto_increment, primary key(id2));
Query OK, 0 rows affected (0.00 sec)
mysql> alter table test add unique index (id1, id2);
Query OK, 0 rows affected (0.09 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> insert into test (id1) values (1);
Query OK, 1 row affected (0.00 sec)
mysql> insert into test (id1) values (1);
Query OK, 1 row affected (0.00 sec)
mysql> insert into test (id1) values (2);
Query OK, 1 row affected (0.00 sec)
mysql> insert into test (id1) values (1);
Query OK, 1 row affected (0.00 sec)
mysql> insert into test (id1) values (2);
Query OK, 1 row affected (0.00 sec)
mysql> select * from test;
+------+-----+
| id1 | id2 |
+------+-----+
| 1 | 1 |
| 1 | 2 |
| 1 | 4 |
| 2 | 3 |
| 2 | 5 |
+------+-----+
5 rows in set (0.00 sec)
I'm running an older flavor of 3.23.41, it's what came with RH 7.2
Or did I do something different?
>
> Result is:
> 1,1
> 1,2
> 2,1
> 1,3
> 2,2
>
> How you convert this functionality from MySQL to PgSQL???
