--- Paul Lambert <paul.lambert@autoledgers.com.au> wrote:
> The purpose being when a row in a table in one database is updated, it
> will copy (or replicate I guess) the record into a different table into
> another database in the same server. (deleting said record first if it
> already exists)
>
> What is the best way to do this within Postgres?
In postgresql, there are two parts to implementing a trigger; the trigger function and the actual
trigger on the table that calls this function.
Here is a good example:
http://www.postgresql.org/docs/8.2/interactive/plpgsql-trigger.html#PLPGSQL-TRIGGER-AUDIT-EXAMPLE
One other point to be aware of, Postgresql does not allow your to reference other databases in the
DB-cluster directly. It is possible but you need to add a contrib module called dblink:
http://pgfoundry.org/projects/snapshot/
Hope this helps,
Regards,
Richard Broersma Jr.