On 30 March 2010 08:26, Zhai Boxuan <bxzhai(at)gmail(dot)com> wrote:
>
> I have read some infor about the MERGE command, which has not been implemented yet in Postgres 8. I considered the problem and have a brief plan for the jobs.
>
You may find these to be some help if you haven't already read them:
http://archives.postgresql.org/pgsql-hackers/2008-04/msg01890.php
http://archives.postgresql.org/pgsql-hackers/2008-04/msg01157.php
Regards
Thom