I need to maintain a sync-ed table across several databases. For example I have a customer table in 5 databases. If a user of any of the databases inserts a new customer I need to insert the new record into the other four databases. But question is updates and deletes.
I can use a trigger and dblink to update the other databases when the action is an insert because in each of the other databases I don't have to worry about a locked record. But what happens if a user is updating at the same moment as a different user in a different database is updating the same customer. Can a race condition occur? I was thinking I could create a master database. And have all the other databases use dblink to excute the master trigger. Any advise would be helpful, Johnf -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
