Обсуждение: ...

Hello,
I have a table with and id field (primary key) which default value is the result of a sequence (increment explicitly set to 1).
To my surprise, the real increment on insert is the total number of rows of the table. For instance, with 41 rows and a sequence last_value of 1141, the next insert row will have a value of 1182. It is not a big problem but I don't like skipping and wasting values in a sequence. Also, I'd like to understand what's going on!
If someone could give me a clue that wold be greatly appreciated
thanks
JC

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try using CACHE 1 (which is default) in the sequence defintion.

http://www.postgresql.org/docs/8.1/static/sql-createsequence.html

On 2/10/06, Jean-Christophe Roux <jcxxr@yahoo.com> wrote:
> Hello,
> I have a table with and id field (primary key) which default value is the
> result of a sequence (increment explicitly set to 1).
> To my surprise, the real increment on insert is the total number of rows of
> the table. For instance, with 41 rows and a sequence last_value of 1141, the
> next insert row will have a value of 1182. It is not a big problem but I
> don't like skipping and wasting values in a sequence. Also, I'd like to
> understand what's going on!
> If someone could give me a clue that wold be greatly appreciated
> thanks
> JC
>
>
>
>  ________________________________
>
>  What are the most popular cars? Find out at Yahoo! Autos
>
>