PFC wrote:
> >PostgreSQL does not support MERGE at the moment, sorry.
>
> Issue an UPDATE, and watch the rowcount ; if the rowcount is 0,
> issue an INSERT.
> Be prepared to retry if another transaction has inserted the row
> meanwhile, though.
Oh, you mean, like the example that's in the documentation?
http://www.postgresql.org/docs/8.1/static/plpgsql-control-structures.html#PLPGSQL-ERROR-TRAPPING
Example 36-1
> MERGE would be really useful.
It has been discussed before -- MERGE is something different.
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
