_version_ will change on updates I'm pretty sure, so I doubt it's suitable.
I _think_ you can use a UUIDUPdateProcessorFactory here. I haven't checked this personally, but the idea here is that the UUID cannot be assigned on the shard. But if you're checking this out, if the UUID is assigned _before_ the doc is sent to the destination shard, it should be fine. Have you checked that out? I'm at a conference, so I can't check it out too thoroughly right now... Best, Erick On Thu, Nov 13, 2014 at 10:18 AM, S.L <simpleliving...@gmail.com> wrote: > Here is why I want to do this . > > 1. My unique key is a http URL, doctorURL. > 2. If I do a look up based on URL , I am bound to face issues with > character escaping and all. > 3. To avoid that I was using a UUID for look up , but in SolrCloud it > generates unique per replica , which is not acceptable. > 4. Now I see that the mandatory _version_ field has a unique value per > document and and not unique per replica , so I am exploring the use of > _version_ to do a look up only and not neccesarily use it as a unique key, > is it do able in that case ? > > On Thu, Nov 13, 2014 at 8:58 AM, Erick Erickson <erickerick...@gmail.com> > wrote: > >> Really, I have to ask why you would want to. This is really purely an >> internal >> thing. I don't know what practical value there would be to search on this? >> >> Interestingly, I can search _version_:[1000000 TO *], but specific searches >> seem to fail. >> >> I wonder if there's something wonky going on with searching on large longs >> here. >> >> Feels like an XY problem to me though. >> >> Best, >> Erick >> >> On Thu, Nov 13, 2014 at 12:45 AM, S.L <simpleliving...@gmail.com> wrote: >> > Hi All, >> > >> > We know that _version_field is a mandatory field in solrcloud schema.xml, >> > it is expected to be of type long , it also seems to have unique value >> in a >> > collection. >> > >> > However the query of the form >> > >> http://server1.mydomain.com:7344/solr/collection1/select/?q=*:*&fq=%28_version_:1484632548944380000%29&wt=json >> > does not seems to return any record , can we query on the _version_field >> in >> > the schema.xml ? >> > >> > Thank you. >>
