You are viewing a plain text version of this content. The canonical link for it is here.

Posted to java-user@lucene.apache.org by Pablo Guerrero <si...@gmail.com> on 2013/03/23 17:52:31 UTC

Update DocValues and Query Time Join performance on DocValues

Hello everyone,

I've seen in a couple of old presentations that DocValues will be updatable
(without updating the whole document) but I cannot find anything recent on
this. Is this currently possible on 4.2? Is there any example on how to do
it?

Also, I have the impression that Query Time Joins should be really fast
using DocValues, as you have random access, but I would like to know what's
the real cost of traversing a relationship, is it constant?, logarithmic?,
linear?

Thanks in advance,
Pablo

Re: Update DocValues and Query Time Join performance on DocValues

Posted by Pablo Guerrero <si...@gmail.com>.

Thanks Gopal,

I had the impression that it was easier to update DocValues than to update
any document in general, but we will have to wait for this.

Cheers,
Pablo


On Mon, Mar 25, 2013 at 3:37 AM, Gopal Patwa <go...@gmail.com> wrote:

> Unfortunately updateable docvalues is not supported yet, but it future
> AFAIK it could be available using stack update approach
>
> https://issues.apache.org/jira/browse/SOLR-3855
> https://issues.apache.org/jira/browse/LUCENE-4258
>
>
> On Sat, Mar 23, 2013 at 9:52 AM, Pablo Guerrero <si...@gmail.com> wrote:
>
> > Hello everyone,
> >
> > I've seen in a couple of old presentations that DocValues will be
> updatable
> > (without updating the whole document) but I cannot find anything recent
> on
> > this. Is this currently possible on 4.2? Is there any example on how to
> do
> > it?
> >
> > Also, I have the impression that Query Time Joins should be really fast
> > using DocValues, as you have random access, but I would like to know
> what's
> > the real cost of traversing a relationship, is it constant?,
> logarithmic?,
> > linear?
> >
> > Thanks in advance,
> > Pablo
> >
>

Re: Update DocValues and Query Time Join performance on DocValues

Posted by Gopal Patwa <go...@gmail.com>.

Unfortunately updateable docvalues is not supported yet, but it future
AFAIK it could be available using stack update approach

https://issues.apache.org/jira/browse/SOLR-3855
https://issues.apache.org/jira/browse/LUCENE-4258


On Sat, Mar 23, 2013 at 9:52 AM, Pablo Guerrero <si...@gmail.com> wrote:

> Hello everyone,
>
> I've seen in a couple of old presentations that DocValues will be updatable
> (without updating the whole document) but I cannot find anything recent on
> this. Is this currently possible on 4.2? Is there any example on how to do
> it?
>
> Also, I have the impression that Query Time Joins should be really fast
> using DocValues, as you have random access, but I would like to know what's
> the real cost of traversing a relationship, is it constant?, logarithmic?,
> linear?
>
> Thanks in advance,
> Pablo
>