Re: Parallell Optimizer

* Ants Aasma (ants@cybertec.at) wrote:
> In a cluster setting you take the CSN value on the master, then before
> starting execution on a standby you wait until that the standby has
> replayed enough WAL to reach the CSN point read from the master and
> you know that after that everything that the snapshot can see is also
> replayed on the standby.

This does make a lot of sense- but to clarify, this would only be for
certain isolation levels, right?  Or would we implement this for every
snapshot taken in a read-committed transaction?
Thanks,
    Stephen