Wasn't aware it's an implementation detail, thanks. That being said, does it mean there's no way to list _version in the fields that have been output, or to filter by them? I'd assume that since aggregations with them work that there'd be a way to filter and view it.
On Sunday, February 8, 2015 at 7:48:26 PM UTC+1, Adrien Grand wrote: > > Hi, > > While using the _version might seem to work in certain cases, I would > recommend to never use it for anything else than optimistic locking of > updates. In particular, versions do not carry any meaning: they might look > like the number of times a document has been modified but it is not always > the case (for instance if you create a new document which has the same ID > as a document that you just deleted, the version number of the new document > will not be 1), and more importantly it is an implementation detail, this > behaviour might change in the future. > > On Sat, Feb 7, 2015 at 12:07 PM, es5z <[email protected] <javascript:> > > wrote: > >> How can I filter by the `_version` field in elasticsearch? I tried to run >> the following query (using YAML instead of JSON) to get documents with >> _version greater than or equal to 4, but nothing is getting returned even >> though the document definitely has documents with that version number. >> >> query: >> filtered: >> filter: >> range: >> _version: >> gte: 4 >> >> I know `_version` is working because in general I can do aggregations on >> it like >> >> aggs: >> versions: >> terms: >> field: _version >> >> Also how can I get `_version` to appear in the list of fields? I try the >> following but only the `name` field is shown, not version. >> >> fields: >> - name >> - _version >> >> I haven't done anything in my mapping regarding _version, do I need to >> customize it's mapping in some way before I can filter or display it? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "elasticsearch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/elasticsearch/16d20efb-3967-43f8-a860-b694d70ef4ee%40googlegroups.com >> >> <https://groups.google.com/d/msgid/elasticsearch/16d20efb-3967-43f8-a860-b694d70ef4ee%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Adrien Grand > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/c7df181d-179c-4480-bfeb-322a9497c611%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
