On Apr 11, 2006, at 1:31 AM, Winson Yung wrote:
> I am not sure how to do it in C, could you give an example?
The PostgreSQL documentation has an example here:
http://www.postgresql.org/docs/8.1/interactive/trigger-example.html
John DeSoi, Ph.D.
http://pgedit.com/
Power Tools for PostgreSQL