Thread: serial data type

serial data type

From
"postgresql"
Date:
CREATE TABLE tablename (colname SERIAL);

okay, but how do I set the beginning number. So far the only thing I 
have been able to do is directly after creating the serial column, I do:

select setval('tablename_colname_seq', 15753);

Is this the only way to set the beginning number of a sequence? 

Thanks for all your help guys,

Ted Petrosky
tedpet@symcom.com




Re: serial data type

From
David Stanaway
Date:
On Saturday, October 27, 2001, at 11:44  AM, postgresql wrote:

>
> CREATE TABLE tablename (colname SERIAL);
>
> okay, but how do I set the beginning number. So far the only thing I
> have been able to do is directly after creating the serial column, I do:
>
> select setval('tablename_colname_seq', 15753);
>
> Is this the only way to set the beginning number of a sequence?

Try looking at the output of
pg_dump -s on this database.

You will see that the SERIAL type does not appear (Since this would 
create a new sequence with an incorrect start value if the database was 
restored from the dump).

You will also see how to create a sequence with different start values 
and intervals.

==============================
David Stanaway
Personal: david@stanaway.net
Work: david@netventures.com.au