Re: Changeset Extraction v7.3

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От Rod Taylor
Тема Re: Changeset Extraction v7.3
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Msg-id CAKddOFCgJ4jDEspnpK58V0VqkHghtydWJ9buvO_S-fcTdxfFHw@mail.gmail.com
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Ответ на Re: Changeset Extraction v7.3  (Andres Freund <andres@2ndquadrant.com>)
Ответы Re: Changeset Extraction v7.3  (David Fetter <david@fetter.org>)
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On Tue, Jan 28, 2014 at 4:56 PM, Andres Freund <andres@2ndquadrant.com> wrote:
On 2014-01-28 21:48:09 +0000, Thom Brown wrote:
> On 28 January 2014 21:37, Robert Haas <robertmhaas@gmail.com> wrote:
> > On Tue, Jan 28, 2014 at 11:53 AM, Robert Haas <robertmhaas@gmail.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.



 

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