Re: Changeset Extraction v7.3

On Tue, Jan 28, 2014 at 4:56 PM, Andres Freund <andres(at)2ndquadrant(dot)com>wrote:

> On 2014-01-28 21:48:09 +0000, Thom Brown wrote:
> > On 28 January 2014 21:37, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> > > On Tue, Jan 28, 2014 at 11:53 AM, Robert Haas <robertmhaas(at)gmail(dot)com>
> wrote:
> > >> I've rebased it here and am hacking on it still.
> > >
> > > Andres and I are going back and forth between our respective git repos
> > > hacking on this, and I think we're getting there, but I have a
> > > terminological question which I'd like to submit to a wider audience:
> > >
> > > The point of Andres's patch set is to introduce a new technology
> > > called logical decoding; that is, the ability to get a replication
> > > stream that is based on changes to tuples rather than changes to
> > > blocks. It could also be called logical replication. In these
> > > patches, our existing replication is referred to as "physical"
> > > replication, which sounds kind of funny to me. Anyone have another
> > > suggestion?
> >
> > Logical and Binary replication?
>
> Unfortunately changeset extraction output's can be binary data...
>

Perhaps Logical and Block?

The existing replication mechanism is similar to block-based disk backups.
It's the whole thing (not parts) and doesn't have any concept of
database/directory.