Then how do we clear the values of a serial column(is it done only by dropping the column?)?
Regards,
M.Indira
On 10/19/06, Jim C. Nasby <[EMAIL PROTECTED]> wrote:
Moving to -sql.
On Wed, Oct 18, 2006 at 06:53:46PM +0530, Indira Muthuswamy wrote:
> Hai,
>
> I have encountered a problem with PostgreSQL.I have created a table
> 'tab1' with a column 'a' with serial type.I entered 20 records into the
> table.So the query
> select max(a) from tab1;
> returned 20.When I tried the same query after the command
> truncate table tab1;
> I found that the output of the first query as
>
> max
> -----
>
> (1 row)
> When I tried to insert a new row into the table tab1 I found that the
> value at column a incremented to the value 21.
> But I heard from my friends that the value of the serial column gets
> decremented whenever we issue the 'truncate table' command (in MS SQL
> SERVER).Is the concept same with PostgreSQL or not?Can anyone clarify me on
> this?
Your friends are mistaken. TRUNCATE does nothing to affect sequences.
--
Jim Nasby [EMAIL PROTECTED]
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
