Re: [PATCH 16/16] current version of the design document

On Wed, Jun 13, 2012 at 6:28 AM, Andres Freund <andres@2ndquadrant.com> wrote:
> +synchronized catalog at the decoding site. That adds some complexity to use
> +cases like replicating into a different database or cross-version
> +replication. For those it is relatively straight-forward to develop a proxy pg
> +instance that only contains the catalog and does the transformation to textual
> +changes.

wow.  Anyways, could you elaborate on a little on how this proxy
instance concept would work?  Let's take the case where I have N
small-ish schema identical database shards that I want to aggregate
into a single warehouse -- something that HS/SR currently can't do.
There's a lot of ways to do that obviously but assuming the warehouse
would have to have a unique schema, could it be done in your
architecture?

merlin