>>
>>Very close. We don't use the WAL (yet, slated for probably 8.1) but we
>>do use a transaction log shipping method. So the implementation is
>>almost the same.
>
>
> Can you run queries on the slave? If so, how do you handle xid collisions?
You can run any query that does not modify data on a replicated table.
You can run any non data modifying query on any of the tables.
Sincerely,
Joshua D. Drake
>
