On May 28, 2010, at 11:28 PM, Sebastian Cohnen wrote: > I'm not sure that this is working properly, when replication is involved. As > far as I understood the _changes API it is only guaranteed to get the latest > change to a document, not every single one. When replication is involved it > is possible to miss a newly created document and only see an updated one > (first part of the MVCC token >1), when it's being replicated to the node > where the _changes feed is consumed from. >
that's true. if you have a few edits rapidly in a row, you might not see a doc in the changes feed until a later revision (even on a single node), as the _changes feed only shows the latest edit of a doc. if you want to process a doc the first time it shows up at a node, you can use filtered changes to only see docs that don't have doc.markedAsProcessed == true, and then process those docs, and add the corresponding field. Chris > > On 29.05.2010, at 05:04, Pavan Kumar wrote: > >> Thanks guys, will go the rev id split way as of now. >> >> On Fri, May 28, 2010 at 10:42 PM, J Chris Anderson <[email protected]> wrote: >> >>> >>> On May 28, 2010, at 8:54 AM, Zachary Zolton wrote: >>> >>>> I was just thinking on this problem the other day.... >>>> >>>> The only thing I can think of is looking at the _rev of the document. >>>> Unfortunately, the format of the _rev has changed in the past, and it >>>> may change in the future. So I think we're supposed to treat it as an >>>> opaque token. >>>> >>>> Hmm... Hopefully someone else has a better solution. >>>> >>> >>> I've started to write code that depends on the fact that the rev is >>> structured like "3-abcdefabcedef" (eg I've got some code that splits by "-", >>> etc). >>> >>> So you could look for docs with a rev that starts with 1. I'm not sure how >>> good an idea it is to do that... >>> >>>> --Zach >>>> >>>> On Fri, May 28, 2010 at 4:33 AM, Pavan Kumar <[email protected]> wrote: >>>>> Hi , >>>>> >>>>> using _changes API with filters, can i detect if the document is a >>> newly >>>>> Created one or Modified one ? What i understand now is that for both of >>> the >>>>> scenarios ( new documents added or existing document changed ) _changes >>> API >>>>> will give a reply back. >>>>> >>>>> Is there a way to differentiate ? >>>>> >>>>> Thanks, >>>>> Pavan >>>>> >>> >>> >
