On Wed, Jun 22, 2011 at 10:17, Jens Alfke <[email protected]> wrote: > By watching the _changes feed I can detect when a document is deleted (via > the “deleted” key), but is there a way to tell when a new document is > created? There doesn’t seem to be a corresponding extra key in the > notification in this case. > > I am tempted to look for a prefix of “1-“ in the revision, but I’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_docs view > after I get a new notification from _changes, and see if its ETag has changed. > > —Jens Careful, this is not cheap (yet): https://issues.apache.org/jira/browse/COUCHDB-941 (The workaround is be sure to specify ?limit=1 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?
