Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@couchdb.apache.org
Received-SPF: neutral (nike.apache.org: local policy)
MIME-Version: 1.0
In-Reply-To: <BANLkTik3anwdZY3qg26Efe2QYaqFgJBjhg@mail.gmail.com>
References: <4E3B3704-FB66-4F8E-9660-20CECB9338F4@mooseyard.com>
 <BANLkTik3anwdZY3qg26Efe2QYaqFgJBjhg@mail.gmail.com>
From: Mark Hahn <mark@boutiquing.com>
Date: Wed, 22 Jun 2011 18:13:39 -0700
Message-ID: <BANLkTiknm-kjCvM3qmZCS-drUjgKKoJS1w@mail.gmail.com>
Subject: Re: How to identify new docs in the _changes feed?
To: user@couchdb.apache.org
Content-Type: multipart/alternative; boundary=002215b03e62bc1bb904a656ccc8

--002215b03e62bc1bb904a656ccc8
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: quoted-printable

> What if revision 2-* replicates in?

I assume you mean: What if revision 2-* replicates in and there is no 1-*?

On Wed, Jun 22, 2011 at 1:26 PM, Randall Leeds <randall.leeds@gmail.com>wro=
te:

> On Wed, Jun 22, 2011 at 10:17, Jens Alfke <jens@mooseyard.com> wrote:
> > By watching the _changes feed I can detect when a document is deleted
> (via the =93deleted=94 key), but is there a way to tell when a new docume=
nt is
> created? There doesn=92t seem to be a corresponding extra key in the
> notification in this case.
> >
> > I am tempted to look for a prefix of =931-=93 in the revision, but I=92=
m pretty
> sure that this is an implementation detail and revision IDs should be
> treated as purely opaque cookies, amiright?
>
> Youisright. But it would work. ;)
>
> >
> > The cheapest alternative I can think of is to do a HEAD on the _all_doc=
s
> view after I get a new notification from _changes, and see if its ETag ha=
s
> changed.
> >
> > =97Jens
>
> Careful, this is not cheap (yet):
> https://issues.apache.org/jira/browse/COUCHDB-941
> (The workaround is be sure to specify ?limit=3D1 or some similarly
> restrictive query)
>
> Why do you need to know the difference and what defines "created" for you=
?
> Would a document that replicated from elsewhere count as "created" or
> only if it's the first revision?
> What if revision 2-* replicates in?
>


--=20
Mark Hahn
Website Manager
mark@boutiquing.com
949-342-4246

--002215b03e62bc1bb904a656ccc8--